Dr. Yogita Kalra Profile

Dr. Yogita Kalra

Assistant Professor at Delhi Technological Univ

SPIE Involvement:

Author | Student Chapter Advisor

Publications (31)

Proceedings Article | 6 June 2023 Poster + Paper

Dielectric metalens with reduced meta-atom aspect ratio and high focusing efficiency

Vishakha Sharma, Yogita Kalra, Ravindra Kumar Sinha

Proceedings Volume 12568, 1256811 (2023) https://doi.org/10.1117/12.2665410

KEYWORDS: Solids, Dielectrics, Phase shift keying, Dielectric polarization, Silicon, Metalenses, Incident light, Fabrication, Design and modelling

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Proceedings Article | 20 August 2020 Poster + Paper

Supercontinuum generation in a hollow-core methanol-silica based photonic crystal fiber: computational model and analysis

Pooja Chauhan, Ajeet Kumar, Yogita Kalra

Proceedings Volume 11498, 114980T (2020) https://doi.org/10.1117/12.2568970

KEYWORDS: Supercontinuum generation, Dispersion, Photonic crystal fibers, Silica, Refractive index, Wavelength division multiplexing, Optical fibers

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Proceedings Article | 20 August 2020 Poster + Paper

Design of nanoantenna for magnetic field enhancement

Ritika Ranga, Ankush Dewan, Yogita Kalra, Kamal Kishor

Proceedings Volume 11462, 114622T (2020) https://doi.org/10.1117/12.2569082

KEYWORDS: Nanoantennas, Magnetism, Bridges, Finite element methods, Gold, Surface plasmons, Near field

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Proceedings Article | 26 February 2020 Paper

Ultra-coherent supercontinuum generation in isopropanol-silica based photonic crystal fiber at 1300nm and 1600nm wavelengths

Pooja Chauhan, Ajeet Kumar, Yogita Kalra

Proceedings Volume 11289, 1128923 (2020) https://doi.org/10.1117/12.2544242

KEYWORDS: Supercontinuum generation, Dispersion, Photonic crystal fibers, Optical coherence tomography, Silica, Applied physics, Pulsed laser operation, Modulation, Cladding, Refractive index

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Proceedings Article | 9 September 2019 Paper

Design of arrow shaped nanoantenna for electric field enhancement

Ritika Ranga, Yogita Kalra, Kamal Kishor

Proceedings Volume 11082, 1108229 (2019) https://doi.org/10.1117/12.2529188

KEYWORDS: Nanoantennas, Finite element methods, Plasmonics, Electromagnetic radiation

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Proceedings Article | 9 September 2019 Paper

A multicomponent GAP-Se chalcogenide composition-based rectangular photonic crystal fiber for coherent supercontinuum generation

Pooja Chauhan, Ajeet Kumar, Yogita Kalra, Than Singh Saini

Proceedings Volume 11123, 1112310 (2019) https://doi.org/10.1117/12.2535677

KEYWORDS: Chalcogenides, Supercontinuum generation, Dispersion, Photonic crystal fibers, Refractive index, Cladding, Nonlinear optics, Mid-IR, Chalcogenide glass, Transparency

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Proceedings Article | 5 September 2019 Paper

Dielectric ring based metamaterial perfect reflector

Nishant Shankhwar, Ritika Ranga, Yogita Kalra, Ravindra Kumar Sinha

Proceedings Volume 11080, 110802W (2019) https://doi.org/10.1117/12.2529033

KEYWORDS: Metamaterials, Dielectrics, Reflectors, Reflection, Reflectivity, Cavity resonators

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Proceedings Article | 26 September 2018 Paper

Design and analysis of a hollow bowtie nanoantenna

Parul Goyal, Nishant Shankhwar, Yogita Kalra

Proceedings Volume 10722, 107222M (2018) https://doi.org/10.1117/12.2320917

KEYWORDS: Nanoantennas, Absorption, Solids, Scattering, Light scattering, Resonance enhancement, Nanoparticles, Gold, Near field optics, Antennas

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Proceedings Article | 19 September 2018 Presentation + Paper

Dielectric zero-index metamaterial filled photonic crystal defect waveguide: design and analysis

Nishant Shankhwar, Yogita Kalra, Ravindra Kumar Sinha

Proceedings Volume 10719, 107191V (2018) https://doi.org/10.1117/12.2320904

KEYWORDS: Waveguides, Metamaterials, Dielectrics, Photonic crystals, Dispersion, Silicon, Scattering, Refractive index, Analytical research, Fiber optic communications

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Proceedings Article | 19 September 2018 Paper

Enhancement of Purcell factor in all-dielectric dimer

Reena Dalal, Yogita Kalra, Ajeet Kumar

Proceedings Volume 10720, 107200W (2018) https://doi.org/10.1117/12.2321041

KEYWORDS: Nanoparticles, Silicon, Dielectrics, Nanoantennas, Fiber optic communications, Fiber optics, Optical communications, Communication engineering, Magnetism

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Proceedings Article | 4 September 2018 Paper

Highly nonlinear spiral shaped photonic crystal fiber in a Ga-Sb-S chalcogenide glass for nonlinear applications

Pooja Chauhan, Ajeet Kumar, Yogita Kalra, Than Singh Saini

Proceedings Volume 10755, 1075510 (2018) https://doi.org/10.1117/12.2320901

KEYWORDS: Chalcogenide glass, Dispersion, Photonic crystal fibers, Antimony, Gallium, Mid-IR, Nonlinear optics, Supercontinuum generation, Nonlinear optical glasses, Nonlinear crystals

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Proceedings Article | 28 August 2017 Presentation + Paper

All-dielectric cylindrical nanoantennas in the visible range

Reena Dalal, Nishant Shankhwar, Yogita Kalra, Ajeet Kumar, R. Sinha

Proceedings Volume 10344, 103440K (2017) https://doi.org/10.1117/12.2273718

KEYWORDS: Scattering, Nanoparticles, Magnetism, Dielectrics, Light scattering, Photovoltaics, Silicon, Light wave propagation, Optical properties, Optoelectronics

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Proceedings Article | 25 August 2017 Paper

Plasmonic waveguides based optical AND gate

Sonia Tomer, Nishant Shankhwar, Yogita Kalra, Ravindra Kumar Sinha

Proceedings Volume 10346, 103462H (2017) https://doi.org/10.1117/12.2273271

KEYWORDS: Plasmonic waveguides, Waveguides, Optical logic, Plasmonics, Silver, Logic devices, Photonic crystals, Optical circuits, Optical computing, Computing systems

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Proceedings Article | 24 August 2017 Paper

LiTaO3 microcubes based metamaterial perfect absorber

Nishant Shankhwar, Reena Dalal, Yogita Kalra, Ravindra Kumar Sinha

Proceedings Volume 10343, 103432L (2017) https://doi.org/10.1117/12.2273259

KEYWORDS: Metamaterials, Dielectrics, Particles, Structural design

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Proceedings Article | 24 August 2017 Paper

Design and analysis of tip slotted square patch nano-antenna

Shubhanshi Sharma, Nishant Shankhwar, Yogita Kalra, Ravindra Kumar Sinha

Proceedings Volume 10343, 1034332 (2017) https://doi.org/10.1117/12.2273780

KEYWORDS: Gold, Infrared radiation, Near field, Silica, Metals, Data modeling, Analytical research, Chemical analysis, Surface plasmons, 3D modeling

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SPIE Journal Paper | 23 June 2017

Split-nanotube-based negative index metamaterial for midinfrared wavelengths

Nishant Shankhwar, Yogita Kalra, Ravindra Kumar Sinha

JNP, Vol. 11, Issue 02, 026014, (June 2017) https://doi.org/10.1117/12.10.1117/1.JNP.11.026014

KEYWORDS: Metamaterials, Infrared radiation, Split ring resonators, Refractive index

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SPIE Journal Paper | 16 November 2016

Modeling and design of all-dielectric cylindrical nanoantennas

Inder Devi, Reena Dalal, Yogita Kalra, Ravindra Kumar Sinha

JNP, Vol. 10, Issue 04, 046011, (November 2016) https://doi.org/10.1117/12.10.1117/1.JNP.10.046011

KEYWORDS: Nanoantennas, Scattering, Magnetism, Silicon, Dielectrics, Nanoparticles, Light scattering, Electromagnetic scattering, Diffraction, Diffraction gratings

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Proceedings Article | 16 September 2016 Paper

Controlling the evanescent waves using metamaterials

Nishant Shankhwar, Ravindra Kumar Sinha, Yogita Kalra

Proceedings Volume 9918, 99182J (2016) https://doi.org/10.1117/12.2237261

KEYWORDS: Metamaterials, Cladding, Waveguides, Planar waveguides, Dielectrics, Silica, Wave propagation, Dielectric polarization, Multilayers, Optical communications

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Proceedings Article | 16 September 2016 Presentation + Paper

Design of tunable cylindrical dielectric nanoantenna

Inder Devi, Reena ., Yogita Kalra, R. Sinha

Proceedings Volume 9919, 991903 (2016) https://doi.org/10.1117/12.2237849

KEYWORDS: Nanoantennas, Scattering, Dielectrics, Silicon, Magnetism, Finite element methods, Nanoparticles, Light scattering, Optical communications, Refractive index

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Proceedings Article | 16 September 2016 Presentation + Paper

Multipolar optically induced electric and magnetic resonances in the ellipsoidal nanoparticles

Reena ., Inder Devi, Yogita Kalra, R. Sinha

Proceedings Volume 9919, 99190T (2016) https://doi.org/10.1117/12.2237817

KEYWORDS: Magnetism, Nanoparticles, Scattering, Light scattering, Dielectrics, Particles, Finite element methods, Nanoantennas, Electromagnetic radiation, Metals

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Proceedings Article | 7 September 2016 Presentation + Paper

Enhanced image resolution in photonic crystal structure by modification of the surface structure

Ashwini Agarwal, Preeti Rani, Yogita Kalra, R. Sinha

Proceedings Volume 9958, 99580G (2016) https://doi.org/10.1117/12.2237767

KEYWORDS: Photonic crystals, Image resolution, Finite-difference time-domain method, Image enhancement, Resolution enhancement technologies, Refractive index, Image quality, Blood, Polarization, Sensors

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Proceedings Article | 7 September 2016 Presentation + Paper

Design of AND logic gate using NAND gate in photonic crystal waveguides

Shiba Fatima, Preeti Rani, Yogita Kalra, R. Sinha

Proceedings Volume 9958, 99580U (2016) https://doi.org/10.1117/12.2237777

KEYWORDS: Optical logic, Photonic crystals, Waveguides, Silicon, Logic devices, Logic, Neodymium, Picosecond phenomena, Crystals, Finite-difference time-domain method

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Proceedings Article | 7 September 2016 Presentation + Paper

Cladding doped defect-core large mode area W-type photonic crystal fiber

Jiten Boruah, Yogita Kalra, Ravindra Sinha

Proceedings Volume 9958, 99580N (2016) https://doi.org/10.1117/12.2237879

KEYWORDS: Dispersion, Photonic crystal fibers, Cladding, Finite element methods, Silica, Fluorine, Telecommunications, Refractive index, Doping, Solids

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SPIE Journal Paper | 27 May 2016

Complete photonic bandgap-based polarization splitter on silicon-on-insulator platform

Preeti Rani, Yogita Kalra, Ravindra Kumar Sinha

JNP, Vol. 10, Issue 02, 026023, (May 2016) https://doi.org/10.1117/12.10.1117/1.JNP.10.026023

KEYWORDS: Polarization, Silicon, Photonic crystals, Photon polarization, Waveguides, Beam splitters, Directional couplers, Finite-difference time-domain method, Dispersion, Optical communications

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Proceedings Article | 1 September 2015 Paper

Mie resonance in the arrays of dielectric rods in air

Reena Dalal, Yogita Kalra, R. Sinha

Proceedings Volume 9544, 95442X (2015) https://doi.org/10.1117/12.2188987

KEYWORDS: Magnetism, Dielectrics, Terahertz radiation, Metamaterials, Refractive index, Fiber optics, Metals, Fiber optic communications, Optical communications, Communication engineering

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Proceedings Article | 26 August 2015 Paper

Slow light effect in pinch waveguide in photonic crystal

Preeti Rani, Yogita Kalra, R. Sinha

Proceedings Volume 9586, 95860X (2015) https://doi.org/10.1117/12.2187322

KEYWORDS: Waveguides, Slow light, Photonic crystals, Dispersion, Silicon, Sensors, Fiber optic communications, Fiber optics, Optical communications, Communication engineering

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SPIE Journal Paper | 5 August 2015

Slow light enabled time and wavelength division demultiplexer in slotted photonic crystal waveguide

Preeti Rani, Yogita Kalra, R. K. Sinha

JNP, Vol. 9, Issue 01, 093063, (August 2015) https://doi.org/10.1117/12.10.1117/1.JNP.9.093063

KEYWORDS: Dispersion, Slow light, Waveguides, Demultiplexers, Photonic crystals, Picosecond phenomena, Silicon, Light wave propagation, Time division multiplexing, Wavelength division multiplexing

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Proceedings Article | 5 September 2014 Paper

Photonic crystal based nano-displacement sensor

Preeti Rani, Yogita Kalra, Venus Dillu, R. Sinha

Proceedings Volume 9200, 92000Q (2014) https://doi.org/10.1117/12.2061627

KEYWORDS: Waveguides, Photonic crystals, Sensors, Image segmentation, Nanoelectromechanical systems, Crystals, Silicon, Fiber optic communications, Fiber optics, Optical communications

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Proceedings Article | 25 September 2013 Paper

Design of photonic crystal architecture for optical logic AND gates

Preeti Rani, Yogita Kalra, R. Sinha

Proceedings Volume 8847, 88470X (2013) https://doi.org/10.1117/12.2023855

KEYWORDS: Silicon, Photonic crystals, Logic devices, Waveguides, Optical logic, Transmittance, Polarization, Optical communications, Protactinium, Optical design

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SPIE Journal Paper | 1 November 2006 Open Access

Design of a photonic band gap polarizer

Ravindra Sinha, Yogita Kalra

OE, Vol. 45, Issue 11, 110503, (November 2006) https://doi.org/10.1117/12.10.1117/1.2372461

KEYWORDS: Polarizers, Waveguides, Dielectric polarization, Photonic crystals, Photon polarization, Polarization, Silicon, Finite-difference time-domain method, Fiber optics, Communication engineering

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Proceedings Article | 11 November 2005 Paper

Design of ultra compact polarization splitter based on complete photonic band gap

R. Sinha, Yogita Nagpal

Proceedings Volume 6005, 60050B (2005) https://doi.org/10.1117/12.630451

KEYWORDS: Dielectric polarization, Polarization, Photonic crystals, Waveguides, Photon polarization, Finite-difference time-domain method, Silicon, Magnetism, Dielectrics, Photonic crystal devices

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Showing 5 of 31 publications

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