Dr. Somnath Bandyopadhyay Profile

Dr. Somnath Bandyopadhyay

Senior Principal Scientist at Central Glass and Ceramic Research Institute

SPIE Involvement:

Author

Publications (17)

Proceedings Article | 11 October 2024 Paper

Experimental validation of high sensitivity, rugged fiber Bragg grating accelerometer for ground vibration measurements

Shweta Pant, Nandini Basumallick, Dipten Kumar, Tanoy Dey, Sayantani Lala, Palas Biswas, Agniv Adhikari, Arun Kumar Singh, Somnath Bandhopadhyay

Proceedings Volume 13276, 1327603 (2024) https://doi.org/10.1117/12.3044577

KEYWORDS: Fiber Bragg gratings, Accelerometers, Sensors, Vibration, Frequency response, Vibrometry, Bragg wavelengths, Design, Refractive index

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Proceedings Article | 11 October 2024 Paper

Design of a vibration-insensitive surface-mounted wide-range FBG tilt sensor

Sayantani Lala, Nandini Basumallick, Shweta Pant, Palas Biswas, Somnath Bandyopadhyay

Proceedings Volume 13276, 1327604 (2024) https://doi.org/10.1117/12.3044525

KEYWORDS: Sensors, Fiber Bragg gratings, Vibration, Design, Bragg wavelengths, Finite element methods, Vibration isolation

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Proceedings Article | 23 April 2017 Paper

Long period fiber gratings for bio-sensing: an improved design methodology

Somnath Bandyopadhyay, Ignacio Del Villar, Sankhyabrata Bandyopadhyay, Palas Biswas, Nandini Basumallick, Tanoy Kumar Dey

Proceedings Volume 10323, 1032306 (2017) https://doi.org/10.1117/12.2272456

KEYWORDS: Sensors, Biosensing, Receptors, Cladding, Refractive index, Biological research, Optical design, Adsorption, Biosensors, Structured optical fibers

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Proceedings Article | 28 September 2015 Paper

Curvature sensing using an added-signal in a fiber optic cavity ring-down system

Susana Silva, P. Biswas, S. Bandyopadhyay, P. Jorge, M. Marques, O. Frazão

Proceedings Volume 9634, 96341G (2015) https://doi.org/10.1117/12.2194785

KEYWORDS: Fiber optics, Signal processing, Sensing systems, Carbon dioxide lasers, Optical fibers, Signal attenuation, Sensors, Reflectometry, Modulation, Fiber couplers

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Proceedings Article | 4 March 2015 Paper

Label-free IgG/anti-IgG biosensing based on long period fiber gratings: a comprehensive feasibility study

F. Chiavaioli, C. Trono, A. Giannetti, S. Tombelli, P. Biswas, S. Bandyopadhyay, Sunirmal Jana, S. Bera, A. Mallick, F. Baldini

Proceedings Volume 9313, 93130R (2015) https://doi.org/10.1117/12.2082809

KEYWORDS: Cladding, Biosensors, Sensors, Magnesium, Biosensing, Manufacturing, Optical fibers, Thermal weapon sites, Biological research, Signal attenuation

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Proceedings Article | 2 June 2014 Paper

Design of long period fiber grating with optimal sensitivity for detecting adhesion of nano-layer on the fiber surface

Palas Biswas, Tanoy Kumar Dey, Nandini Basumallick, Prasanta Kumar Sinha, Kamal Dasgupta, Somnath Bandyopadhyay

Proceedings Volume 9157, 91573F (2014) https://doi.org/10.1117/12.2059690

KEYWORDS: Refractive index, Sensors, Water, Coating, Optical design, Biological research, Receptors, Cladding, Single mode fibers, Molecules

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Proceedings Article | 27 February 2014 Paper

IgG/anti-IgG immunoassay based on a turn-around point long period grating

F. Chiavaioli, P. Biswas, C. Trono, A. Giannetti, S. Tombelli, S. Bandyopadhyay, N. Basumallick, K. Dasgupta, F. Baldini

Proceedings Volume 8935, 89350V (2014) https://doi.org/10.1117/12.2039782

KEYWORDS: Biosensors, Cladding, Magnesium, Sensors, Manufacturing, Temperature metrology, Refractive index, Solids, Optical biosensors, Performance modeling

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Proceedings Article | 18 November 2013 Paper

High refractive index and temperature sensitivity LPGs for high temperature operation

I. Nascimento, C. Gouveia, Surnimal Jana, Susanta Bera, J. Baptista, Paulo Moreira, Palas Biwas, Somnath Bandyopadhyay, Pedro A. Jorge

Proceedings Volume 8785, 8785FE (2013) https://doi.org/10.1117/12.2027573

KEYWORDS: Refractive index, Cladding, Coating, Sol-gels, Sensors, Temperature metrology, Signal attenuation, Optical fibers, Thin films, Fiber optics sensors

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Proceedings Article | 7 November 2012 Paper

Increased sensitivity of long period grating hydrogen sensors through coupling to higher order cladding modes

Richard Carter, Robert R. Maier, Palas Biswas, Somnath Bandyopadhyay, Nandini Basumallick, Benjamin J. Jones, Scott McCulloch, James Barton

Proceedings Volume 8421, 84216I (2012) https://doi.org/10.1117/12.975217

KEYWORDS: Hydrogen, Sensors, Cladding, Palladium, Refractive index, Coating, Absorption, Signal to noise ratio, Fiber optics sensors, Phase matching

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Proceedings Article | 5 October 2009 Paper

Regeneration of complex Bragg gratings

S. Bandyopadhyay, J. Canning, P. Biswas, R. Chakraborty, K. Dasgupta

Proceedings Volume 7503, 750371 (2009) https://doi.org/10.1117/12.835104

KEYWORDS: Modulation, Fiber Bragg gratings, Reflectivity, Scientific research, Optical fibers, Annealing, Refractive index, Phase shifts, Glasses, Optical filters

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Proceedings Article | 5 October 2009 Paper

Strong regenerated gratings

J. Canning, M. Stevenson, J. Fenton, M. Aslund, S. Bandyopadhyay

Proceedings Volume 7503, 750326 (2009) https://doi.org/10.1117/12.834473

KEYWORDS: Annealing, Fluorine, Modulation, Fiber Bragg gratings, Structured optical fibers, Photonics, Chemistry, Glasses, Diffusion, Germanium

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Proceedings Article | 20 May 2009 Paper

Bragg grating writing in photonic crystal fibres

Kevin Cook, John Canning, Alexandre A. Pohl, John Holdsworth, Michael Stevenson, Somnath Bandyopadhyay, Nathaniel Groothoff

Proceedings Volume 7357, 73570H (2009) https://doi.org/10.1117/12.820588

KEYWORDS: Cladding, Photonic crystal fibers, Absorption, Fiber Bragg gratings, Germanium, Scattering, Luminescence, Ferroelectric materials, Liquids, Hydrogen

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Proceedings Article | 15 December 2006 Paper

A geo-informatics based approach for disaster risk assessment: a perspective analysis

Sanjay Srivastava, S. Bandyopadhayay, B. Manikiam, V. Hegde, V. Jayaraman

Proceedings Volume 6412, 641214 (2006) https://doi.org/10.1117/12.694098

KEYWORDS: Data modeling, Satellites, Floods, Vegetation, Hazard analysis, Associative arrays, Geographic information systems, Agriculture, Climatology, Statistical analysis

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Proceedings Article | 29 April 1999 Paper

Improved optical matrix-vector multiplier

Soumika Munshi, Somnath Bandyopadhyay, Asit Datta

Proceedings Volume 3729, (1999) https://doi.org/10.1117/12.346832

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Proceedings Article | 29 April 1999 Paper

Difference of chirps: a class of quasi-wavelet filter functions for edge feature extraction

Debesh Choudhury, Somnath Bandyopadhyay

Proceedings Volume 3729, (1999) https://doi.org/10.1117/12.346767

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SPIE Journal Paper | 1 March 1998

Holographic implementation of a binary associative memory for improved recognition

Somnath Bandyopadhyay, Ajay Ghosh, Asit Datta

OE, Vol. 37, Issue 03, (March 1998) https://doi.org/10.1117/12.10.1117/1.601909

KEYWORDS: Binary data, Holography, Spatial light modulators, Content addressable memory, Matrices, Holograms, Neurons, 3D image reconstruction, Neural networks, Sensors

SPIE Journal Paper | 1 February 1994

Realization of a two-dimensional discrete Walsh transform in a microprocessor-controlled optical architecture

Asit Datta, Sunit Sen, Anish Deb, Somnath Bandyopadhyay

OE, Vol. 33, Issue 02, (February 1994) https://doi.org/10.1117/12.10.1117/12.152034

KEYWORDS: Discrete wavelet transforms, Light emitting diodes, Sensors, Analog electronics, Signal processing, Image processing, Matrices, Clocks, Spatial light modulators, Computing systems

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Showing 5 of 17 publications

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