Prof. Boris D. Barmashenko Profile

Prof. Boris D. Barmashenko

Professor at Ben-Gurion Univ of the Negev

SPIE Involvement:

Author

Publications (52)

Proceedings Article | 7 November 2022 Paper

Advanced DPAL modeling

Boris Barmashenko, Karol Waichman, Gilead Eliyahu-Caspi, Guy Makov, Salman Rosenwaks

Proceedings Volume 12347, 1234703 (2022) https://doi.org/10.1117/12.2654153

KEYWORDS: Rubidium, Chemical species, Methane, Ions, 3D modeling, Potassium, Ionization, Electrons, Gas lasers, Diffusion

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Proceedings Article | 13 September 2021 Presentation + Paper

Modeling of K and Rb DPALs

Boris Barmashenko, Karol Waichman, Salman Rosenwaks

Proceedings Volume 11867, 118670N (2021) https://doi.org/10.1117/12.2601517

KEYWORDS: Rubidium, Methane, 3D modeling, Ionization, Chemical species, Potassium, Gas lasers, Electrons, Diffusion, Ions

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Proceedings Article | 7 October 2019 Presentation + Paper

Measuring and modelling the beam quality in cesium DPALs

Ilya Auslender, Eyal Yacoby, Boris Barmashenko, Salman Rosenwaks

Proceedings Volume 11162, 111620B (2019) https://doi.org/10.1117/12.2533295

KEYWORDS: Resonators, Modeling, Semiconductor lasers, Laser beam propagation, Diodes, Beam quality measurement, Cesium, Modes of laser operation, Mirrors, Laser resonators

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Proceedings Article | 3 January 2019 Paper

Continuous wave diode pumped flowing-gas Cesium laser

Eyal Yacoby, Ilya Auslender, Boris Barmashnko, Salman Rosewaks

Proceedings Volume 11042, 110420D (2019) https://doi.org/10.1117/12.2518584

KEYWORDS: Cesium, 3D modeling, Continuous wave operation, Semiconductor lasers, Temperature metrology, Diodes, Gas lasers, Mirrors, Chemical species, Reflectivity

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Proceedings Article | 3 January 2019 Paper

Parametric study of the performance and beam quality of cesium DPAL: experiment and modelling

Ilya Auslender, Eyal Yacoby, Boris Barmashenko, Salman Rosenwaks

Proceedings Volume 11042, 110420F (2019) https://doi.org/10.1117/12.2520429

KEYWORDS: Resonators, Cesium, Lasers, Laser resonators, Modeling, Modes of laser operation

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Proceedings Article | 9 October 2018 Presentation + Paper

Parametric study of static and flowing-gas Cs DPAL

Ilya Auslender, Eyal Yacoby, Boris Barmashenko, Salman Rosenwaks

Proceedings Volume 10798, 1079808 (2018) https://doi.org/10.1117/12.2326903

KEYWORDS: Alkali vapor lasers, High power lasers, Numerical modeling, Numerical simulations, Cesium, 3D modeling, Resonators, Spherical lenses

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Proceedings Article | 9 November 2017 Paper

Scaling up and controlling beam quality of flowing-gas diode pumped potassium laser with different pumping geometries: 3D CFD modeling

Eyal Yacoby, Karol Waichman, Oren Sadot, Boris Barmashenko, Salman Rosenwaks

Proceedings Volume 10436, 104360D (2017) https://doi.org/10.1117/12.2277689

KEYWORDS: Optical pumping, Lasers, 3D modeling, Refractive index, Potassium, Output couplers, Laser beam propagation, Chemical species, Wavefronts, Semiconductor lasers

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Proceedings Article | 26 October 2017 Presentation + Paper

Modeling of multi-transversal mode lasing in static alkali vapor lasers

Ilya Auslender, Boris Barmashenko, Salman Rosenwaks

Proceedings Volume 10436, 104360E (2017) https://doi.org/10.1117/12.2278052

KEYWORDS: Modes of laser operation, Cesium, Alkali vapor lasers, Resonators, Optical pumping, Gas lasers, Collimation, High power diode lasers

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Proceedings Article | 5 October 2017 Paper

Experimental studies and modeling of static Cs DPALs: dependence of the power and beam shape on different parameters

Salman Rosenwaks, Ilya Auslender, Eyal Yacoby, Boris Barmashenko

Proceedings Volume 10436, 104360C (2017) https://doi.org/10.1117/12.2277688

KEYWORDS: Cesium, Mirrors, Beam shaping, Semiconductor lasers, Lasers, Resonators, Wave plates, Collimation, Spherical lenses, Laser resonators

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Proceedings Article | 5 October 2017 Paper

Three-dimensional simulation of beam propagation and heat transfer in static gas Cs DPALs using wave optics and fluid dynamics models

Karol Waichman, Boris Barmashenko, Salman Rosenwaks

Proceedings Volume 10436, 104360F (2017) https://doi.org/10.1117/12.2277992

KEYWORDS: 3D modeling, Wave propagation, Laser beam propagation, Cesium, Fluid dynamics, Optical simulations, Diodes, Semiconductor lasers, Gas lasers, Thermal effects

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Proceedings Article | 13 January 2017 Paper

3D CFD modeling of flowing-gas DPALs with different pumping geometries and various flow velocities

Eyal Yacoby, Karol Waichman, Oren Sadot, Boris Barmashenko, Salman Rosenwaks

Proceedings Volume 10254, 102540O (2017) https://doi.org/10.1117/12.2256026

KEYWORDS: 3D modeling, Cesium, Lasers, Optical pumping, Medium wave, Chemical species, Ionization, Laser beam propagation, Resonators, Computational fluid dynamics

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Proceedings Article | 13 January 2017 Paper

Optically pumped Cs vapor lasers: pump-to-laser beam overlap optimization

Ilya Auslender, Tom Cohen, Eyal Lebiush, Boris Barmashenko, Salman Rosenwaks

Proceedings Volume 10254, 102540P (2017) https://doi.org/10.1117/12.2256801

KEYWORDS: Laser optics, Cesium, Lasers, Temperature metrology, Beam shaping, Laser damage threshold, Optical pumping, Electro optical modeling, Semiconductor lasers, Laser applications

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Proceedings Article | 21 October 2016 Presentation + Paper

Experimental and theoretical study of the performance of optically pumped cesium vapor laser as a function of the pump-to-laser beam overlap

Boris Barmashenko, Tom Cohen, Eyal Lebiush, Ilya Auslender, Salman Rosenwaks

Proceedings Volume 9990, 99900F (2016) https://doi.org/10.1117/12.2247816

KEYWORDS: Cesium, Optical pumping, Semiconductor lasers, Beam shaping, Laser damage threshold, Temperature metrology, Lasers, Chemical species, Electro optical modeling, Optical testing

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Proceedings Article | 22 April 2016 Paper

Modeling of static and flowing-gas diode pumped alkali lasers

Boris Barmashenko, Ilya Auslender, Eyal Yacoby, Karol Waichman, Oren Sadot, Salman Rosenwaks

Proceedings Volume 9729, 972904 (2016) https://doi.org/10.1117/12.2214975

KEYWORDS: Diodes, Cesium, 3D modeling, Gas lasers, Pulsed laser operation, Chemical species, Fluid dynamics, Optical pumping, Medium wave, Laser resonators, Lasers, Absorption

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Proceedings Article | 27 October 2015 Paper

Modeling of pulsed K DPAL taking into account the spatial variation of the pump and laser intensities in the transverse direction

Boris Barmashenko, Ilya Auslender, Salman Rosenwaks, Boris Zhdanov, Matthew Rotondaro, Randall Knize

Proceedings Volume 9650, 96500B (2015) https://doi.org/10.1117/12.2193579

KEYWORDS: Lasers, Chemical species, Absorption, Pulsed laser operation, Temperature metrology, Laser damage threshold, Beam shaping, Laser resonators, Reflectivity, Laser applications

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Proceedings Article | 13 October 2015 Paper

CFD assisted simulation of temperature distribution and laser power in pulsed and CW pumped static gas DPALs

Karol Waichman, Boris Barmashenko, Salman Rosenwaks

Proceedings Volume 9650, 96500C (2015) https://doi.org/10.1117/12.2193879

KEYWORDS: Cesium, 3D modeling, Pulsed laser operation, Resonators, Continuous wave operation, Semiconductor lasers, Laser resonators, Thermal effects, Thermography, Refraction

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Proceedings Article | 13 October 2015 Paper

3D CFD modeling of subsonic and transonic flowing-gas DPALs with different pumping geometries

Eyal Yacoby, Oren Sadot, Boris Barmashenko, Salman Rosenwaks

Proceedings Volume 9650, 96500E (2015) https://doi.org/10.1117/12.2208264

KEYWORDS: Cesium, 3D modeling, Resonators, Optical pumping, Ionization, Laser beam propagation, Semiconductor lasers, Fluid dynamics, Chemical species, Laser resonators

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Three-dimensional computational fluid dynamics (3D CFD) modeling of subsonic (Mach number M ~ 0.2) and transonic (M ~ 0.9) diode pumped alkali lasers (DPALs), taking into account fluid dynamics and kinetic processes in the lasing medium is reported. The performance of these lasers is compared with that of supersonic (M ~ 2.7 for Cs and M ~ 2.4 for K) DPALs. The motivation for this study stems from the fact that subsonic and transonic DPALs require much simpler hardware than supersonic ones where supersonic nozzle, diffuser and high power mechanical pump (due to a drop in the gas total pressure in the nozzle) are required for continuous closed cycle operation. For Cs DPALs with 5 x 5 cm² flow cross section pumped by large cross section (5 x 2 cm²) beam the maximum achievable power of supersonic devices is higher than that of the transonic and subsonic devices by only ~ 3% and ~ 10%, respectively. Thus in this case the supersonic operation mode has no substantial advantage over the transonic one. The main processes limiting the power of Cs supersonic DPALs are saturation of the D2 transition and large ~ 60% losses of alkali atoms due to ionization, whereas the influence of gas heating is negligible. For K transonic DPALs both the gas heating and ionization effects are shown to be unimportant. The maximum values of the power are higher than those in Cs transonic laser by ~ 11%. The power achieved in the supersonic and transonic K DPAL is higher than for the subsonic version, with the same resonator and K density at the inlet, by ~ 84% and ~ 27%, respectively, showing a considerable advantaged of the supersonic device over the transonic one. For pumping by rectangular beams of the same (5 x 2 cm²) cross section, comparison between end-pumping - where the laser beam and pump beam both propagate at along the same axis, and transverse-pumping - where they propagate perpendicularly to each other, shows that the output power and optical-to-optical efficiency are not affected by the pump geometry. However, the output laser beam in the case of end-pumped DPALs has a homogeneous spatial intensity distribution in the beam cross section, whereas for transverse-pumped DPALs the intensity varies significantly along the pumping axis (perpendicular to the resonator optical axis) and hence is strongly inhomogeneous in the laser beam cross section. Thus, higher brightness and better beam quality in the far field is achieved for the end-pumping geometry. Optimization of the resonator geometry for minimal gas temperature rise and minimal intra-resonator intensity (corresponds to a low ionization rate) is also reported.

Proceedings Article | 13 October 2015 Paper

Supersonic diode pumped alkali lasers: Computational fluid dynamics modeling

Salman Rosenwaks, Eyal Yacoby, Karol Waichman, Oren Sadot, Boris Barmashenko

Proceedings Volume 9650, 96500A (2015) https://doi.org/10.1117/12.2193574

KEYWORDS: 3D modeling, Cesium, Ionization, Optical pumping, Resonators, Laser resonators, Semiconductor lasers, Diodes, Chemical species, Computational fluid dynamics

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Proceedings Article | 3 February 2015 Paper

Semi-analytical and CFD model calculations of subsonic flowing-gas DPALs and their comparison to experimental results

Boris Barmashenko, Salman Rosenwaks, Karol Waichman

Proceedings Volume 9255, 925520 (2015) https://doi.org/10.1117/12.2070676

KEYWORDS: 3D modeling, Cesium, Ionization, Chemical species, Absorption, Laser resonators, Mirrors, Resonators, Rubidium, Chemical reactions

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Proceedings Article | 7 October 2014 Paper

Theoretical studies of the feasibility of supersonic DPALs

Salman Rosenwaks, Boris Barmashenko, Karol Waichman

Proceedings Volume 9251, 92510W (2014) https://doi.org/10.1117/12.2067011

KEYWORDS: 3D modeling, Cesium, Chemical species, Resonators, Diffusers, Instrument modeling, Ionization, Optical pumping, Laser resonators, Absorption

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Results of recent semi-analytical and three dimensional computational fluid dynamics (3D CFD) modeling of supersonic diode pumped alkali lasers (DPALs), as well as summary of work in progress, are reported. DPALs have been extensively studied in the past few years and static and flowing-gas devices have been investigated. Modeling of these devices has been conducted as well and fluid dynamics and kinetic processes have been taken into account, but until recently only flowing-gas DPALs with subsonic velocity of the gas were considered. Following our previous work on supersonic DPALs we further explore in the present study the feasibility of operating DPALs with supersonic expansion of the gaseous laser mixture, consisting of alkali atoms, He atoms and (frequently) hydrocarbon molecules. The motivation for this exploration stems from the possibility of fast and efficient cooling of the mixture by the supersonic expansion. In a recent paper (S. Rosenwaks et al, Proc. SPIE 8962, 896209 (2014)) we have reported on semi-analytical modeling for a supersonic Cs DPAL with parameters similar to those of the 1-kW flowing-gas subsonic Cs DPAL (A.V. Bogachev et al, Quantum Electron. 42, 95 (2012)); the maximum power, P_lase, for the former was found to be higher than for the latter by 25%. Optimization of the He/CH₄ buffer gas composition and flow parameters using 3D CFD modeling shows that for Bogachev et al resonator parameters, extremely high lasing power and optical-to-optical efficiency, 33 kW and 82%, respectively, are achievable in the Cs supersonic device. Comparison between the semi-analytical and the 3D CFD models for Cs shows that the latter predicts much higher maximum achievable laser power than the former. For a supersonic K DPAL the semi-analytical model predicts P_lase = 43 kW, 70% higher than for subsonic with the same resonator and K density at the inlet, the maximum optical-to-optical efficiency being 82%. The paper also includes estimates for closed cycle supersonic systems.

Proceedings Article | 7 October 2014 Paper

CFD DPAL modeling for various schemes of flow configurations

Karol Waichman, Boris Barmashenko, Salman Rosenwaks

Proceedings Volume 9251, 92510U (2014) https://doi.org/10.1117/12.2067019

KEYWORDS: Cesium, 3D modeling, Ionization, Resonators, Chemical species, Semiconductor lasers, Mirrors, Gas lasers, Laser resonators

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Proceedings Article | 7 October 2014 Paper

Comparison of semi-analytical to CFD model calculations and to experimental results of subsonic flowing-gas and static DPALs

Boris Barmashenko, Salman Rosenwaks, Karol Waichman

Proceedings Volume 9251, 92510V (2014) https://doi.org/10.1117/12.2067020

KEYWORDS: 3D modeling, Chemical species, Ionization, Cesium, Chemical reactions, Absorption, Convection, Rubidium, Laser applications, Semiconductor lasers

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Proceedings Article | 25 February 2014 Paper

Semi-analytical and 3D CFD DPAL modeling: feasibility of supersonic operation

Salman Rosenwaks, Boris Barmashenko, Karol Waichman

Proceedings Volume 8962, 896209 (2014) https://doi.org/10.1117/12.2036744

KEYWORDS: 3D modeling, Cesium, Chemical species, Laser resonators, Resonators, Ionization, Absorption, Semiconductor lasers, Diodes, Molecules

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Proceedings Article | 25 February 2014 Paper

Kinetic and fluid dynamic processes in diode pumped alkali lasers: semi-analytical and 2D and 3D CFD modeling

Boris Barmashenko, Salman Rosenwaks, Karol Waichman

Proceedings Volume 8962, 89620C (2014) https://doi.org/10.1117/12.2036073

KEYWORDS: 3D modeling, Chemical species, Ionization, Cesium, Convection, Diffusion, Chemical reactions, Absorption, Semiconductor lasers, Fluid dynamics

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Proceedings Article | 15 October 2013 Paper

Model calculations of kinetic and fluid dynamic processes in diode pumped alkali lasers

Boris Barmashenko, Salman Rosenwaks, Karol Waichman

Proceedings Volume 8898, 88980W (2013) https://doi.org/10.1117/12.2026931

KEYWORDS: Cesium, Chemical species, Ionization, Chemical reactions, Diffusion, Convection, Ions, Diodes, Absorption, Semiconductor lasers

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Proceedings Article | 15 October 2013 Paper

What can we gain from supersonic operation of diode pumped alkali lasers: model calculations

S. Rosenwaks, B. Barmashenko, K. Waichman

Proceedings Volume 8898, 88980X (2013) https://doi.org/10.1117/12.2026932

KEYWORDS: Cesium, 3D modeling, Chemical species, Laser resonators, Resonators, Diodes, Semiconductor lasers, Instrument modeling, Absorption, Computational fluid dynamics

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Proceedings Article | 8 November 2012 Paper

Modeling of static and flowing-gas diode pumped alkali lasers

Boris Barmashenko, Salman Rosenwaks

Proceedings Volume 8547, 854710 (2012) https://doi.org/10.1117/12.973771

KEYWORDS: Chemical species, Cesium, Chemical reactions, Ionization, Semiconductor lasers, Diodes, Absorption, Diffusion, Lasers

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Proceedings Article | 16 November 2010 Paper

Lasing in supersonic chemical oxygen-iodine lasers: recent modeling and comparison with experiment

Boris Barmashenko, Karol Waichman, Salman Rosenwaks

Proceedings Volume 7751, 775107 (2010) https://doi.org/10.1117/12.878602

KEYWORDS: Resonators, Mirrors, Chemical lasers, 3D modeling, Lawrencium, Geometrical optics, Laser resonators, Chemical oxygen iodine lasers, Data modeling, Near field optics

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Proceedings Article | 16 November 2010 Paper

A historical overview on the mechanism of the COIL kinetics

Salman Rosenwaks, Boris Barmashenko, Karol Waichman

Proceedings Volume 7751, 775106 (2010) https://doi.org/10.1117/12.878600

KEYWORDS: 3D modeling, Chemical oxygen iodine lasers, Mirrors, Throat, Resonators, Oxygen, Iodine, Chemical lasers, Data modeling, Chemical species

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Proceedings Article | 18 April 2009 Paper

Analysis of lasing in COILs with positive and negative branch unstable resonators using a simple geometrical-optics model

Boris Barmashenko

Proceedings Volume 7131, 71310S (2009) https://doi.org/10.1117/12.816694

KEYWORDS: Resonators, Mirrors, Geometrical optics, Chemical lasers, Lawrencium, Near field optics, Chemical analysis, Chemical oxygen iodine lasers, Oxygen, Differential equations

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Proceedings Article | 18 April 2009 Paper

Supersonic COILs at Ben-Gurion University: (1) experiments on 10-cm gain-length device and (2) computational fluid dynamics modelling

Ilan Brami-Rosilio, Karol Waichman, Boris Barmashenko, Salman Rosenwaks

Proceedings Volume 7131, 71310D (2009) https://doi.org/10.1117/12.816447

KEYWORDS: 3D modeling, Chemical oxygen iodine lasers, Oxygen, Chemical lasers, Computational fluid dynamics, Mirrors, Iodine, Chlorine, Modeling, Systems modeling

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Proceedings Article | 18 April 2009 Paper

A computational fluid dynamics simulation of a high pressure ejector COIL and comparison to experiments

Karol Waichman, Boris Barmashenko, Salman Rosenwaks

Proceedings Volume 7131, 71310R (2009) https://doi.org/10.1117/12.816445

KEYWORDS: 3D modeling, Chemical oxygen iodine lasers, Oxygen, Temperature metrology, Iodine, Doppler effect, Chemical lasers, Turbulence, Computational fluid dynamics, Motion models

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Proceedings Article | 25 July 2007 Paper

Dissociation of I₂ in chemical oxygen-iodine lasers: experiment, modeling, and pre-dissociation by electrical discharge

A. Katz, K. Waichman, Z. Dahan, V. Rybalkin, B. Barmashenko, S. Rosenwaks

Proceedings Volume 6735, 673504 (2007) https://doi.org/10.1117/12.753167

KEYWORDS: 3D modeling, Iodine, Chemical oxygen iodine lasers, Chemical lasers, Chemical species, 3D metrology, Temperature metrology, Diagnostics, Oxygen, Resonators

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Proceedings Article | 26 April 2007 Paper

Studies of iodine dissociation in the chemical oxygen-iodine laser

V. Rybalkin, A. Katz, K. Waichman, D. Vingurt, Z. Dahan, B. Barmashenko, S. Rosenwaks

Proceedings Volume 6346, 63460A (2007) https://doi.org/10.1117/12.737166

KEYWORDS: Iodine, Chemical oxygen iodine lasers, Chemical lasers, Molecules, Chemical analysis, Oxygen, Chemical species, Absorption, Resonators, Diagnostics

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Proceedings Article | 26 April 2007 Paper

A computational fluid dynamics simulation of a supersonic chemical oxygen-iodine laser

K. Waichman, V. Rybalkin, A. Katz, Z. Dahan, B. Barmashenko, S. Rosenwaks

Proceedings Volume 6346, 63462D (2007) https://doi.org/10.1117/12.739080

KEYWORDS: 3D modeling, Chemical lasers, Chemical oxygen iodine lasers, Iodine, Computational fluid dynamics, Molecules, 3D metrology, Computer simulations, Optical simulations, Chemical reactions

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Proceedings Article | 9 June 2006 Paper

Detailed gain measurements and analysis of a highly efficient supersonic COIL

B. Barmashenko, V. Rybalkin, A. Katz, S. Rosenwaks

Proceedings Volume 6053, 605306 (2006) https://doi.org/10.1117/12.659740

KEYWORDS: Iodine, Chemical oxygen iodine lasers, Mirrors, Chemical analysis, Temperature metrology, Oxygen, Chlorine, Chemical lasers, Molecules, Laser development

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Proceedings Article | 23 March 2005 Paper

Recent studies of Ben-Gurion Univ. high efficiency supersonic chemical oxygen-iodine laser

Salman Rosenwaks, Victor Rybalkin, Arje Katz, Boris Barmashenko

Proceedings Volume 5777, (2005) https://doi.org/10.1117/12.610977

KEYWORDS: Chemical lasers, Chemical oxygen iodine lasers, Iodine, Chemical analysis, Oxygen, Mirrors, Molecules, Chlorine, Nitrogen, Energy efficiency

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Proceedings Article | 20 September 2004 Paper

Parametric study of the Ben-Gurion University efficient chemical oxygen-iodine laser

Boris Barmashenko, Victor Rybalkin, Arje Katz, Salman Rosenwaks

Proceedings Volume 5448, (2004) https://doi.org/10.1117/12.548150

KEYWORDS: Iodine, Chlorine, Chemical lasers, Mirrors, Chemical oxygen iodine lasers, Diagnostics, Oxygen, Throat, Temperature metrology, Molecules

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Proceedings Article | 10 November 2003 Paper

Mechanisms of COIL operation: experiment and modeling

Boris Barmashenko, V. Rybalkin, A. Katz, E. Bruins, D. Furman, S. Rosenwaks

Proceedings Volume 5120, (2003) https://doi.org/10.1117/12.515529

KEYWORDS: Iodine, Chemical oxygen iodine lasers, Diagnostics, Chemical lasers, Temperature metrology, Oxygen, Semiconductor lasers, Systems modeling, Nitrogen, Fluid dynamics

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Proceedings Article | 6 May 2002 Paper

Gain and temperature in a slit nozzle supersonic chemical oxygen-iodine laser with transonic and supersonic injection of iodine

Salman Rosenwaks, Boris Barmashenko, Esther Bruins, Dov Furman, Victor Rybalkin, Arje Katz

Proceedings Volume 4631, (2002) https://doi.org/10.1117/12.465781

KEYWORDS: Iodine, Chemical lasers, Chemical oxygen iodine lasers, Diagnostics, Nitrogen, Oxygen, Molecules, Semiconductor lasers, Temperature metrology, Chemical species

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Proceedings Article | 6 May 2002 Paper

Modeling of the gain, temperature, and iodine dissociation fraction in a supersonic chemical oxygen-iodine laser

Boris Barmashenko, Esther Bruins, Dov Furman, Victor Rybalkin, Salman Rosenwaks

Proceedings Volume 4631, (2002) https://doi.org/10.1117/12.465794

KEYWORDS: Iodine, Chemical oxygen iodine lasers, Chemical lasers, Temperature metrology, Chemical reactions, 3D modeling, Oxygen, Resonators, Chemical species, Molecules

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Proceedings Article | 1 March 2001 Paper

Current status of chemical oxygen-iodine laser research

Salman Rosenwaks, Boris Barmashenko, Dov Furman, Esther Bruins, Victor Rybalkin

Proceedings Volume 4351, (2001) https://doi.org/10.1117/12.417713

KEYWORDS: Iodine, Resonators, Chemical lasers, Chemical oxygen iodine lasers, Oxygen, Chlorine, Diagnostics, Temperature metrology, Chemical species, Molecules

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Proceedings Article | 25 January 2001 Paper

Supersonic COIL with iodine injection in transonic and supersonic sections of the nozzle

Salman Rosenwaks, Esther Bruins, Dov Furman, Victor Rybalkin, Boris Barmashenko

Proceedings Volume 4184, (2001) https://doi.org/10.1117/12.414050

KEYWORDS: Iodine, Chemical oxygen iodine lasers, Diagnostics, Chlorine, Temperature metrology, Chemical lasers, Oxygen, Semiconductor lasers, Nitrogen, Mirrors

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Proceedings Article | 25 January 2001 Paper

Iodine dissociation in supersonic COILs with different schemes of iodine mixing

Boris Barmashenko, Esther Bruins, Dov Furman, Victor Rybalkin, Salman Rosenwaks

Proceedings Volume 4184, (2001) https://doi.org/10.1117/12.414014

KEYWORDS: Iodine, Molecules, Oxygen, Chemical oxygen iodine lasers, Resonators, Chemical species, Chemical lasers, Signal processing, Absorption, NOx

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Proceedings Article | 22 December 1998 Paper

Chemical oxygen-iodine laser investigations in Israel

Boris Barmashenko, Dov Furman, Salman Rosenwaks

Proceedings Volume 3574, (1998) https://doi.org/10.1117/12.334442

KEYWORDS: Diagnostics, Chlorine, Oxygen, Temperature metrology, Iodine, Chemical oxygen iodine lasers, Resonators, Chlorine gas, Chemical lasers, Semiconductor lasers

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Proceedings Article | 12 May 1998 Paper

Parametric studies of a small-scale chemical oxygen-iodine laser/jet generator system: recent achievements

Dov Furman, Boris Barmashenko, Salman Rosenwaks

Proceedings Volume 3268, (1998) https://doi.org/10.1117/12.308062

KEYWORDS: Iodine, Chemical lasers, Oxygen, Mirrors, Chlorine, Chlorine gas, Chemical oxygen iodine lasers, Chemical analysis, Resonators, Chemical species

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Proceedings Article | 4 April 1997 Paper

Analysis of lasing in COILs with wide aperture of the mirrors in the resonator

Boris Barmashenko, Salman Rosenwaks

Proceedings Volume 3092, (1997) https://doi.org/10.1117/12.270163

KEYWORDS: Resonators, Mirrors, Fabry–Perot interferometers, Doppler effect, Laser resonators, Diffraction, Chemical lasers, Chemical oxygen iodine lasers, Stereolithography, Energy efficiency

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Proceedings Article | 4 April 1997 Paper

Experimental study of a small scale COIL using a jet type generator of singlet oxygen

Salman Rosenwaks, I. Blayvas, Boris Barmashenko, Dov Furman, Marsel Zagidullin

Proceedings Volume 3092, (1997) https://doi.org/10.1117/12.270165

KEYWORDS: Chlorine, Chemical oxygen iodine lasers, Iodine, Oxygen, Mirrors, Chlorine gas, Chemical lasers, Chemical analysis, Throat, Laser resonators

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Proceedings Article | 31 March 1995 Paper

Parametric studies of a small-scale supersonic chemical oxygen-iodine laser (COIL)

Salman Rosenwaks, Boris Barmashenko, A. Elior, Eyal Lebiush, I. Blyvas

Proceedings Volume 2502, (1995) https://doi.org/10.1117/12.204918

KEYWORDS: Iodine, Chemical lasers, Oxygen, Chemical oxygen iodine lasers, Helium, Chlorine, High power lasers, Mirrors, Chemical analysis, Chemical species

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Proceedings Article | 4 May 1993 Paper

Modeling of high-pressure O2(1^) generators for chemical oxygen-iodine lasers

Boris Barmashenko, Salman Rosenwaks

Proceedings Volume 1810, (1993) https://doi.org/10.1117/12.144538

KEYWORDS: Liquids, Chemical lasers, Interfaces, Atmospheric modeling, Aerosols, Chemical oxygen iodine lasers, Oxygen, Ions, Chlorine, Chemical analysis

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Proceedings Article | 4 May 1993 Paper

Effect of mixing on iodine dissociation, population inversion and lasing in chemical oxygen-iodine lasers

Boris Barmashenko, A. Elior, Eyal Lebiush, Salman Rosenwaks

Proceedings Volume 1810, (1993) https://doi.org/10.1117/12.144537

KEYWORDS: Iodine, Chemical lasers, Chemical oxygen iodine lasers, Diffusion, Oxygen, Performance modeling, Data modeling, Chemical reactions, NOx, Radon

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Proceedings Article | 1 February 1991 Paper

Possibility of long population inversion in active media for IR chemical lasers

Boris Barmashenko, Viatcheslav Kochelap

Proceedings Volume 1397, (1991) https://doi.org/10.1117/12.25888

KEYWORDS: Chemical lasers, Molecules, Chemical reactions, Infrared lasers, Molecular lasers, Energy efficiency, Chemical analysis, Semiconductors, Lawrencium, Arsenic

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Showing 5 of 52 publications

Conference Committee Involvement (1)

XX International Symposium on High Power Laser Systems and Applications

25 August 2014 | Chengdu, China

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