Prof. Ardhendu Saha Profile

Prof. Ardhendu Saha

Professor at National Institute of Technology Agartala

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Author

Publications (10)

SPIE Journal Paper | 13 June 2023

Analysis of electro-optically adjustable cascaded second-order nonlinearity in tapered BBO crystal: a compression scheme for ultra-short pulse

Sharbari Deb, Ardhendu Saha

OE, Vol. 62, Issue 06, 065102, (June 2023) https://doi.org/10.1117/12.10.1117/1.OE.62.6.065102

KEYWORDS: Crystals, Ultrafast phenomena, Nonlinear crystals, Electro optics, Optical engineering, Phase shifts, Nonlinear optics, Laser crystals, Dispersion, Electric fields

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SPIE Journal Paper | 10 June 2021

Highly efficient second-harmonic generation in an electro-optic chiral material using total-internal-reflection-based optical rotation quasi-phase-matching technique

Moumita Saha, Sumita Deb, Pritam Kumar Mandal, Bhaswati Medhi, Ardhendu Saha

OE, Vol. 60, Issue 06, 066104, (June 2021) https://doi.org/10.1117/12.10.1117/1.OE.60.6.066104

KEYWORDS: Phase shifts, Thin films, Second-harmonic generation, Polarization, Electro optics, Interfaces, Optical engineering, Crystals, Reflection, Wave propagation

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Proceedings Article | 8 November 2020 Presentation + Paper

Manifestation of an ultra-high sensitive fiber optic microbend sensor realized by shining a Bessel-Gauss beam

Arijit Datta, Susmita Karmakar, Ardhendu Saha

Proceedings Volume 11525, 115250F (2020) https://doi.org/10.1117/12.2579727

KEYWORDS: Sensors, Fiber optics sensors, Fiber optics, Waveguides, Temperature metrology, Structural engineering, Multimode fibers, Modal analysis, Fabrication, Damage detection

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SPIE Journal Paper | 24 May 2019

Enhanced sensitivity of fiber optic evanescent wave absorption-based concentration sensor by shining a Bessel–Gauss beam and effect of fiber bending on the sensor response: a theoretical analysis

Arijit Datta, Appasani Mahendra Babu, Ardhendu Saha

OE, Vol. 58, Issue 05, 056112, (May 2019) https://doi.org/10.1117/12.10.1117/1.OE.58.5.056112

KEYWORDS: Sensors, Fiber optics sensors, Fiber optics, Multimode fibers, Wave sensors, Gaussian beams, Axicons, Absorbance, Waveguides, Refractive index

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SPIE Journal Paper | 30 March 2018

Ultrahigh-sensitive multimode interference-based fiber optic liquid-level sensor realized using illuminating zero-order Bessel–Gauss beam

Ardhendu Saha, Arijit Datta, Surjit Kaman

OE, Vol. 57, Issue 03, 036118, (March 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.3.036118

KEYWORDS: Sensors, Fiber optics sensors, Fiber optics, Cladding, Refractive index, Liquids, Gaussian beams, Multimode fibers, Axicons, Beam propagation method

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SPIE Journal Paper | 9 January 2018

Total internal reflection quasiphase matching-based broadband second harmonic generation in a plane-parallel uniaxial crystal of lithium niobate

Minakshi Deb Barma, Sumita Deb, Ardhendu Saha

OE, Vol. 57, Issue 01, 017106, (January 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.1.017106

KEYWORDS: Crystals, Interfaces, Laser crystals, Lithium niobate, Nonlinear crystals, Polarization, Refractive index, Harmonic generation, Crystal optics, Second-harmonic generation

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Proceedings Article | 24 March 2015 Paper

Polarization tunable spatial and angular Goos-Hänchen shift and Imbert-Fedorov shift using long range surface plasmon

Nabamita Goswami, Ardhendu Saha, Aparupa Kar

Proceedings Volume 9347, 93471U (2015) https://doi.org/10.1117/12.2079052

KEYWORDS: Dielectric polarization, Surface plasmons, Prisms, Metals, Reflection, Switching, Dielectrics, Silver, Composites, Optical switching

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Proceedings Article | 12 March 2013 Paper

Surface plasmon enhanced reflected second harmonic generation in periodically poled whispering gallery resonator

Ardhendu Saha, Nabamita Goswami, Priyanka Dey

Proceedings Volume 8604, 86040W (2013) https://doi.org/10.1117/12.2000445

KEYWORDS: Surface plasmons, Gallium arsenide, Resonators, Harmonic generation, Prisms, Gold, Second-harmonic generation, Dielectrics, Reflectivity, Optical testing

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Proceedings Article | 3 February 1999 Paper

Fiber optic microdisplacement and vibration sensor

Amar Ganguly, Ardhendu Saha

Proceedings Volume 3541, (1999) https://doi.org/10.1117/12.339082

KEYWORDS: Sensors, Fiber optics sensors, Fiber optics, Staring arrays, Francium, Diodes, Optical fibers, Polymers, Electronic circuits, Light

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Proceedings Article | 5 August 1998 Paper

Multilayered step index microlens of low spherical aberration

Alok Das, Amar Ganguly, Ardhendu Saha

Proceedings Volume 3557, (1998) https://doi.org/10.1117/12.318334

KEYWORDS: Monochromatic aberrations, Refractive index, Polymethylmethacrylate, Microlens, Multilayers, Polymers, Integrated optics, Glasses, Doping, Spherical lenses

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Showing 5 of 10 publications

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