Dr. Neelanjan Bandyopadhyay Profile

Dr. Neelanjan Bandyopadhyay

Senior Engineer at Bandwidth10 Inc

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Publications (14)

Proceedings Article | 15 March 2023 Presentation + Paper

HCG MEMS tunable VCSEL with intracavity integrated detector

Carlos F. Mateus, Dalila Ellafi, Chuanshun Cao, Virgil Carl Ford, Neelanjan Bandyopadhyay, Kai-C. Hui, Christopher Chase, D. Philip Worland

Proceedings Volume 12439, 1243906 (2023) https://doi.org/10.1117/12.2668721

KEYWORDS: Vertical cavity surface emitting lasers, Microelectromechanical systems, Optical resonators, Mirrors, Design and modelling, Optical sensing, Scattered light, Laser interferometry, Semiconductors, Optical coherence tomography

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Proceedings Article | 3 March 2020 Presentation + Paper

MEMs-HCG VCSELs for emerging sensing and datacoms applications

Dalila Ellafi, Michael Yang, Hung Kai Chen, Sam Sangho Kim, Neelanjan Bandyopadhyay, Sam Cheng, Ghulam Hasnain, Mike Huang, Chris Chase

Proceedings Volume 11300, 113000R (2020) https://doi.org/10.1117/12.2547396

KEYWORDS: Vertical cavity surface emitting lasers, Microelectromechanical systems, Tunable lasers, Optical coherence tomography, Mirrors, Wavelength tuning, WDM-PON, Optical filters, Modulation, Fiber to the x

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Proceedings Article | 13 October 2015 Open Access

Recent development of high power, widely tunable THz quantum cascade laser sources based on difference-frequency generation

M. Razeghi, Q. Y. Lu, N. Bandyopadhyay, S. Slivken

Proceedings Volume 9647, 964703 (2015) https://doi.org/10.1117/12.2202967

KEYWORDS: Terahertz radiation, Quantum cascade lasers, Waveguides, Diffraction gratings, Mid-IR, Continuous wave operation, Polishing, Seaborgium, Silicon

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Proceedings Article | 31 August 2015 Paper

Recent development of high-power widely tunable THz quantum cascade laser sources based on difference-frequency generation

M. Razeghi, Q. Y. Lu, N. Bandyopadhyay, S. Slivken

Proceedings Volume 9585, 958502 (2015) https://doi.org/10.1117/12.2192221

KEYWORDS: Terahertz radiation, Quantum cascade lasers, Waveguides, Diffraction gratings, Mid-IR, Continuous wave operation, Polishing, Seaborgium, Silicon

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Proceedings Article | 5 September 2014 Paper

Room temperature continuous wave THz quantum cascade laser source with high power operation

M. Razeghi, Q. Lu, N. Bandyopadhyay, S. Slivken, Y. Bai

Proceedings Volume 9199, 919902 (2014) https://doi.org/10.1117/12.2064802

KEYWORDS: Terahertz radiation, Continuous wave operation, Mid-IR, Quantum cascade lasers, Waveguides, Composites, Doping, Difference frequency generation, Polishing

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Proceedings Article | 21 May 2014 Open Access

Recent progress of room temperature THz sources based on nonlinear frequency mixing in quantum cascade lasers

M. Razeghi, Q. Y. Lu, N. Bandyopadhyay, S. Slivken, Y. Bai

Proceedings Volume 9100, 91000H (2014) https://doi.org/10.1117/12.2054324

KEYWORDS: Terahertz radiation, Mid-IR, Quantum cascade lasers, Surgery, Waveguides, Dry etching, Polishing, Doping, Electron beam lithography, Silicon

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Proceedings Article | 24 September 2013 Paper

Room temperature compact THz sources based on quantum cascade laser technology

Manijeh Razeghi, Q. Lu, N. Bandyopadhyay, S. Slivken, Y. Bai

Proceedings Volume 8846, 884602 (2013) https://doi.org/10.1117/12.2027979

KEYWORDS: Terahertz radiation, Mid-IR, Quantum cascade lasers, Polishing, Sensors, Coating, Laser applications, Waveguides, Silicon, Imaging spectroscopy

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Proceedings Article | 4 February 2013 Paper

Dual section quantum cascade lasers with wide electrical tuning

S. Slivken, N. Bandyopadhyay, S. Tsao, S. Nida, Y. Bai, Q. Y. Lu, M. Razeghi

Proceedings Volume 8631, 86310P (2013) https://doi.org/10.1117/12.2008506

KEYWORDS: Quantum cascade lasers, Reflectivity, Continuous wave operation, Optical design, High power lasers, Diffraction gratings, Pulsed laser operation, Waveguides, Laser damage threshold, Mirrors

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Proceedings Article | 4 February 2013 Paper

Continuous wave, room temperature operation of λ ~ 3um quantum cascade laser

N. Bandyopadhyay, Y. Bai, S. Tsao, S. Nida, S. Slivken, M. Razeghi

Proceedings Volume 8631, 86310M (2013) https://doi.org/10.1117/12.2019105

KEYWORDS: Quantum cascade lasers, Continuous wave operation, Pulsed laser operation, Mid-IR, Superlattices, Composites, Pollution control, Scattering, Cladding

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Proceedings Article | 4 February 2013 Paper

Widely-tuned room-temperature terahertz quantum cascade laser sources

Quan-Yong Lu, Neelanjan Bandyopadhyay, Steven Slivken, Yanbo Bai, Manijeh Razeghi

Proceedings Volume 8631, 863108 (2013) https://doi.org/10.1117/12.2019101

KEYWORDS: Terahertz radiation, Mid-IR, Quantum cascade lasers, Silicon, Waveguides, Scanning electron microscopy, Electroluminescence, Transmittance, Imaging spectroscopy, Phase matching

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Proceedings Article | 21 January 2012 Paper

Substrate emission quantum cascade ring lasers with room temperature continuous wave operation

Y. Bai, S. Tsao, N. Bandyopadhyay, S. Slivken, Q. Y. Lu, M. Razeghi

Proceedings Volume 8268, 82680N (2012) https://doi.org/10.1117/12.913655

KEYWORDS: Quantum cascade lasers, Continuous wave operation, Quantum computing, Diffraction, Near field, Gold, Silica, Cladding, Staring arrays, Photomasks

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Proceedings Article | 1 June 2011 Paper

Widely tunable single-mode high power quantum cascade lasers

M. Razeghi, B. Gökden, S. Tsao, A. Haddadi, N. Bandyopadhyay, S. Slivken

Proceedings Volume 8069, 806905 (2011) https://doi.org/10.1117/12.887575

KEYWORDS: Quantum cascade lasers, Continuous wave operation, Pulsed laser operation, High power lasers, Mid-IR, Metals, Optical components, Gas sensors, Dry etching, FT-IR spectroscopy

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Proceedings Article | 1 March 2011 Paper

High peak power (34 W) photonic crystal distributed feedback quantum cascade lasers

B. Gökden, Y. Bai, N. Bandyopadhyay, S. Slivken, M. Razeghi

Proceedings Volume 7946, 794606 (2011) https://doi.org/10.1117/12.881397

KEYWORDS: Quantum cascade lasers, Photonic crystals, High power lasers, Photomasks, Pulsed laser operation, Semiconducting wafers, Diffraction, Etching, Silica, FT-IR spectroscopy

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Proceedings Article | 24 January 2011 Paper

High power 1D and 2D photonic crystal distributed feedback quantum cascade lasers

B. Gökden, Y. Bai, S. Tsao, N. Bandyopadhyay, S. Slivken, M. Razeghi

Proceedings Volume 7945, 79450C (2011) https://doi.org/10.1117/12.879855

KEYWORDS: Quantum cascade lasers, Photonic crystals, Pulsed laser operation, High power lasers, Mid-IR, Continuous wave operation, Silica, Photomasks, Laser damage threshold, Etching

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Showing 5 of 14 publications

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