Dr. David N. Nikogosyan Profile

Dr. David N. Nikogosyan

Professor at Univ College Cork

SPIE Involvement:

Author

Proceedings Article | 27 September 2008 Paper

Micro-holographic methods for sub-micrometer grating fabrication in fused silica with UV femtosecond laser

M. Dubov, R. Nasyrov, D. Nikogosyan, A. Poleshchuk, V. Mezentsev, I. Bennion

Proceedings Volume 7100, 71000T (2008) https://doi.org/10.1117/12.797681

KEYWORDS: Femtosecond phenomena, Silica, Photomasks, Ultraviolet radiation, Fiber Bragg gratings, Pulsed laser operation, Objectives, Diffraction, Molybdenum, Phase modulation

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Proceedings Article | 2 July 2007 Paper

Strain characterization of fiber Bragg gratings inscribed by high-intensity femtosecond UV pulses

Ronan O'Byrne, Sergey Sergeyev, Dónal Flavin, David Nikogosyan

Proceedings Volume 6619, 661918 (2007) https://doi.org/10.1117/12.738386

KEYWORDS: Fiber Bragg gratings, Femtosecond phenomena, Ultraviolet radiation, Optical fibers, Sensors, Phase modulation, Shape analysis, Spectrum analysis

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Proceedings Article | 25 May 2007 Paper

Wavelength dependent polarization properties of a long-period grating inscribed in a pure-fused-silica photonic crystal fiber

C. Caucheteur, A. Fotiadi, P. Mégret, G. Brambilla, S. Slattery, D. Nikogosyan

Proceedings Volume 6588, 65880H (2007) https://doi.org/10.1117/12.722772

KEYWORDS: Polarization, Photonic crystal fibers, Femtosecond phenomena, Modulation, Cladding, Structured optical fibers, Ultraviolet radiation, Silica, Photonic crystals, Optical fibers

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Proceedings Article | 25 April 2006 Paper

Polarization properties of long-period gratings prepared by high-intensity femtosecond 352nm pulses

S. Slattery, D. Nikogosyan, C. Caucheteur, A. Fotiadi, P. Mégret

Proceedings Volume 6187, 618707 (2006) https://doi.org/10.1117/12.662543

KEYWORDS: Polarization, Femtosecond phenomena, Cladding, Carbon dioxide lasers, Ultraviolet radiation, Absorption, Fiber lasers, Neodymium glass lasers, Annealing, Near ultraviolet

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Proceedings Article | 8 June 2005 Paper

High-intensity UV laser inscription of fibre Bragg gratings and comparison with other fabrication techniques

Stephen Slattery, David Nikogosyan

Proceedings Volume 5827, (2005) https://doi.org/10.1117/12.601158

KEYWORDS: Fiber Bragg gratings, Refractive index, Ultraviolet radiation, Absorption, Modulation, Femtosecond phenomena, Excimer lasers, Fabrication, Infrared radiation, Cladding

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Proceedings Article | 8 June 2005 Paper

Investigation of long-period fibre gratings inscribed by high-intensity femtosecond UV laser light

Alexey Kalachev, David Nikogosyan

Proceedings Volume 5827, (2005) https://doi.org/10.1117/12.601157

KEYWORDS: Ultraviolet radiation, Thermal effects, Femtosecond phenomena, Absorption, Cladding, Silica, Refractive index, Hydrogen, Annealing, Temperature metrology

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Proceedings Article | 23 May 2005 Paper

Investigation of long-period fiber gratings recorded by high-intensity femtosecond UV laser pulses

Alexey Kalachev, Vincent Pureur, Stephen Slattery, David Nikogosyan

Proceedings Volume 5855, (2005) https://doi.org/10.1117/12.623437

KEYWORDS: Femtosecond phenomena, Thermal effects, Ultraviolet radiation, Fiber lasers, Silica, Refractive index, Hydrogen, Thermal sensing, Temperature sensors, Quantum efficiency

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Proceedings Article | 27 August 2003 Paper

Inscription of long-period fiber gratings by femtosecond UV radiation

Adrian Dragomir, David Nikogosyan, Konstantin Zagorul'ko, Peter Kryukov

Proceedings Volume 4876, (2003) https://doi.org/10.1117/12.463644

KEYWORDS: Femtosecond phenomena, Absorption, Ultraviolet radiation, Refractive index, Germanium, Silica, Excimer lasers, Modulation, Fiber optics, Signal attenuation

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Proceedings Article | 17 June 1993 Paper

Laser photochemistry of amino acids and peptides

David Nikogosyan

Proceedings Volume 1921, (1993) https://doi.org/10.1117/12.146137

KEYWORDS: Quantum efficiency, Photolysis, Ultraviolet radiation, Picosecond phenomena, Photochemistry, Laser spectroscopy, Ionization, Molecules, Absorption, Liquids

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Showing 5 of 9 publications

Conference Committee Involvement (1)

Photon Management Research in Ireland

6 April 2004 | Dublin, Ireland

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