Dr. Sadhvikas J. Addamane Profile

Dr. Sadhvikas J. Addamane

Postdoc at Sandia National Labs

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Author

Publications (30)

Proceedings Article | 13 March 2024 Presentation + Paper

Gain-shaped quantum cascade laser frequency combs

Mithun Roy, Zhenyang Xiao, Sadvikhas Addamane, David Burghoff

Proceedings Volume 12912, 129120N (2024) https://doi.org/10.1117/12.3012364

KEYWORDS: Quantum cascade lasers, Frequency modulation, Frequency combs, Laser frequency, Diffusion, Terahertz radiation, Amplitude modulation, Phase modulation, Design

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Proceedings Article | 13 March 2024 Presentation

GaAs-based quantum cascade lasers for the 5-6 THz range

Mohammad Shahili, Sadhvikas Addamane, Christopher Curwen, Jonathan Kawamura, Benjamin Williams

Proceedings Volume PC12905, PC129050K (2024) https://doi.org/10.1117/12.3002200

KEYWORDS: Terahertz radiation, Quantum cascade lasers, Design and modelling, Continuous wave operation, Laser frequency, Molecular spectroscopy, Waveguides, Spectroscopy, Semiconductors, Scattering

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Proceedings Article | 13 March 2024 Presentation

Investigation of self-mixing in a THz quantum-cascade VECSEL under optical feedback

Anthony Kim, Daniel McGovern, Sadhvikas Addamane, Benjamin Williams

Proceedings Volume PC12905, PC129050M (2024) https://doi.org/10.1117/12.3001981

KEYWORDS: Terahertz radiation, Vertical external cavity surface emitting lasers, Quantum optics, Quantum cascade lasers, Output couplers, Waveguides, Waveguide lasers, Vibration, Quantum phenomena, Quantum effects

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Proceedings Article | 13 March 2024 Paper

Anti-Stokes photoluminescence from LiY1-xErxF4 nanocrystals

Mia Baca, Shruti Gharde, Quang Tin Nguyen, Erum Jamil, Sergei Ivanov, Sadhvikas Addamane, Winson C. Kuo, Dale Huber, Marek Osiński

Proceedings Volume 12902, 1290208 (2024) https://doi.org/10.1117/12.3006612

KEYWORDS: Erbium, Nanocrystals, Photoluminescence, Fluorine, Lithium, Crystals, Laser induced fluorescence, Ions, Yttrium, X-ray fluorescence spectroscopy

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Proceedings Article | 12 March 2024 Presentation + Paper

Exploring frequency comb generation in optically injected ring quantum cascade lasers

Md Istiak Khan, Zhenyang Xiao, Sadhvikas Addamane, David Burghoff

Proceedings Volume 12869, 1286903 (2024) https://doi.org/10.1117/12.3003180

KEYWORDS: Quantum cascade lasers, Terahertz radiation, Frequency combs, Waveguides, Microresonators, Frequency modulation, Simulations, Laser frequency, Fermium, Design

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Proceedings Article | 6 October 2023 Presentation

All-dielectric metasurfaces for terahertz generation, detection, and manipulation

Hyunseung Jung, Lucy Hale, Jayson Briscoe, Ting Shan Luk, Sadhvikas Addamane, Igal Brener, Oleg Mitrofanov

Proceedings Volume PC12683, PC126830G (2023) https://doi.org/10.1117/12.2681515

KEYWORDS: Design and modelling, Dielectrics, Indium arsenide, Gallium arsenide, Terahertz radiation, Binary data, Zone plates, Ultrafast phenomena, Terahertz technology, Terahertz detection

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Proceedings Article | 5 October 2023 Presentation

Enabling electrical and magnetic properties by tailoring dimensions

Keshab Sapkota, Ping Lu, Sadhvikas Addamane, Douglas Medlin, Wenyong Wang, George Wang

Proceedings Volume PC12651, PC126510F (2023) https://doi.org/10.1117/12.2677833

KEYWORDS: Magnetism, Oxides, Nanowires, Nanomaterials, Materials properties, Zinc oxide, Polarons, Oxygen, Nanostructures, Metals

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Proceedings Article | 4 October 2023 Presentation + Paper

Photoconductive metasurfaces for near-field terahertz sources and detectors

Lucy Hale, Hyunseung Jung, James Seddon, Raktim Sarma, Sylvain Gennaro, Jayson Briscoe, C. Thomas Harris, Ting Shan Luk, Prasad Iyer, Sadhvikas Addamane, John Reno, Igal Brener, Oleg Mitrofanov

Proceedings Volume 12683, 126830C (2023) https://doi.org/10.1117/12.2681721

KEYWORDS: Terahertz radiation, Near field, Near infrared, Microscopy, Terahertz detection, Spatial resolution, Terahertz sources, Near field optics, Signal detection, Electromagnetic metamaterials, Terahertz spectroscopy

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Proceedings Article | 4 October 2023 Presentation

Enhancing semiconductor quantum dot emission with electric and magnetic dipole modes in Mie metasurfaces

Samuel Prescott, Prasad Iyer, Hyunseung Jung, Ting Shan Luk, Jacob Henshaw, Andrew Mounce, Sadhvikas Addamane, Igal Brener, Oleg Mitrofanov

Proceedings Volume PC12646, PC1264615 (2023) https://doi.org/10.1117/12.2677377

KEYWORDS: Semiconductor quantum dots, Quantum dot emission, Quantum enhancement, Magnetism, Quantum dots, Quantum systems, Photoluminescence, Spectroscopy, Semiconductors, Resonators

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Proceedings Article | 21 March 2023 Paper

High-Q microresonators based on native germanium for precision sensing

Dingding Ren, Chao Dong, Sadhvikas Addamane, David Burghoff

Proceedings Volume 12447, 1244705 (2023) https://doi.org/10.1117/12.2657256

KEYWORDS: Microresonators, Germanium, Waveguides, Whispering gallery modes, Long wavelength infrared, Glasses, Quantum cascade lasers, Polishing, Fabrication, Etching

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Proceedings Article | 17 March 2023 Presentation

THz quantum-cascade VECSELs based upon disordered metasurfaces

Eilam Morag, Sandra Li, Anthony Kim, Sadhvikas Addamane, Benjamin Williams

Proceedings Volume 12404, 124040E (2023) https://doi.org/10.1117/12.2648477

KEYWORDS: Terahertz radiation, Coherence imaging, Spatial coherence, Lasers, Laser applications, Holography, High power lasers, Antennas

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Proceedings Article | 17 March 2023 Presentation

Effects of output coupler on THz quantum-cascade VECSELs tunable between 2.5-3.0 THz

Anthony Kim, Yu Wu, Sadhvikas Addamane, Benjamin Williams

Proceedings Volume 12404, 1240409 (2023) https://doi.org/10.1117/12.2649234

KEYWORDS: Terahertz radiation, Output couplers, Silicon, Quartz, Oscillators, Laser damage threshold, Heterodyning, Fabry–Perot interferometers, Deep reactive ion etching, Antireflective coatings

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Proceedings Article | 14 March 2023 Presentation + Paper

Hybrid SESAMs for high-repetition rate mode-locked VECSELs

Ricky Gibson, Simon Tsaoussis, Joshua Rollag, Catherine Nguyen, David Follman, Garrett Cole, Sadhvikas Addamane, Jerome Moloney, R. Jason Jones

Proceedings Volume 12404, 1240407 (2023) https://doi.org/10.1117/12.2666028

KEYWORDS: Mode locking, Vertical external cavity surface emitting lasers, Semiconductors, Gallium arsenide, Quantum wells, Mirrors, Output couplers

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Proceedings Article | 14 March 2023 Presentation + Paper

Coupled mode-locked VECSEL cavities with a shared gain medium

Simon Tsaoussis, Sadhvikas Addamane, R. Jason Jones, Jerome Moloney

Proceedings Volume 12404, 124040C (2023) https://doi.org/10.1117/12.2647727

KEYWORDS: Vertical external cavity surface emitting lasers, Mode locking, Semiconductors, Polarization, Wavelength tuning, Spectroscopy, Frequency combs

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Proceedings Article | 26 August 2022 Presentation

Terahertz quantum-cascade VECSELs local oscillators for heterodyne receivers

Christopher Curwen, Jonathan Kawamura, Darren Hayton, Yu Wu, Sadhvikas Addamane, John Reno, Benjamin Williams, Boris Karasik

Proceedings Volume PC12190, PC121900A (2022) https://doi.org/10.1117/12.2629058

KEYWORDS: Heterodyning, Receivers, Oscillators, Terahertz radiation, Spectroscopes, Sensors, Quantum cascade lasers, Observatories, Mode locking, Microwave radiation

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Proceedings Article | 1 April 2022 Presentation

Towards quantum-cascade VECSELs for terahertz heterodyne local oscillators

Christopher Curwen, Anthony Kim, Yu Wu, Yue Shen, Darren Hayton, Jonathan Kawamura, Boris Karasik, Sadhvikas Addamane, John Reno, Benjamin Williams

Proceedings Volume PC11984, PC1198402 (2022) https://doi.org/10.1117/12.2615672

KEYWORDS: Terahertz radiation, Heterodyning, Oscillators, Laser stabilization, Antennas, Mode locking, Microwave radiation, Doppler effect, Diodes, Continuous wave operation

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Proceedings Article | 9 March 2022 Presentation

Multi-mode lasing in terahertz metasurface quantum-cascade VECSELs

Yu Wu, Sadhvikas Addamane, John Reno, Benjamin Williams

Proceedings Volume PC12021, PC120210F (2022) https://doi.org/10.1117/12.2606690

KEYWORDS: Reflectivity, Output couplers, Frequency combs, Terahertz radiation, Silicon, Mode locking, Lasers, Hole burning spectroscopy, Fabry–Perot interferometers, Continuous wave operation

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Proceedings Article | 1 August 2021 Presentation

Low power requirement photoconductive antenna detectors based on a perfectly absorbing metasurfaces

Lucy Hale, Charles Harris, Ting Shan Luk, Sadhvikas Addamane, John Reno, Igal Brener, Oleg Mitrofanov

Proceedings Volume 11827, 118270P (2021) https://doi.org/10.1117/12.2596140

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Proceedings Article | 1 August 2021 Presentation

Perfectly absorbing photoconductive metasurfaces for terahertz applications

Lucy Hale, Polina Vabishchevich, Charles Harris, Ting Shan Luk, Sadhvikas Addamane, John Reno, Igal Brener, Oleg Mitrofanov

Proceedings Volume 11795, 117951Z (2021) https://doi.org/10.1117/12.2596141

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Proceedings Article | 5 September 2019 Presentation + Paper

Temperature dependent absorption and emission enhancement factors in plasmon coupled semiconductor heterostructures

Chih-Feng Wang, Sadhvikas Addamane, Ganesh Balakrishnan, Claudia Rivera Lebron, Sharmin Haq, Bisweswar Patra, Kevin Malloy, Terefe Habteyes

Proceedings Volume 11081, 110812A (2019) https://doi.org/10.1117/12.2527770

KEYWORDS: Quantum wells, Gallium arsenide, Plasmons, Absorption, Plasmonics, Diffusion, Interfaces, Near field, Solids, Semiconductors

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Proceedings Article | 18 March 2019 Paper

Wide-temperature-range characterization of 1.55-µm phosphorus-free multiple-quantum-well lasers grown by MBE on InP

Sami Adnan Nazib, Troy Hutchins-Delgado, Diana Magana Contreras, Hosuk Lee, Estania Jean Charles, Nathan Withers, Sadhvikas Addamane, Emma Renteria, John Nogan, Ganesh Balakrishnan, Marek Osiński

Proceedings Volume 10912, 109120X (2019) https://doi.org/10.1117/12.2515648

KEYWORDS: Cryogenics, Semiconductor lasers, Temperature metrology, Resistance

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Proceedings Article | 4 March 2019 Paper

Characterization of MBE-grown 1.55-µm GaSb-based multiple-quantum-well lasers at cryogenic temperatures

Troy Hutchins-Delgado, Sami Adnan Nazib, Hosuk Lee, Diana Magana Contreras, Estania Jean Charles, Nathan Withers, Sadhvikas Addamane, Emma Renteria, John Nogan, Ganesh Balakrishnan, Marek Osiński

Proceedings Volume 10912, 109120I (2019) https://doi.org/10.1117/12.2515649

KEYWORDS: Cryogenics, Temperature metrology, Cladding, Semiconductor lasers, Laser applications, Resistance

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Proceedings Article | 15 February 2018 Paper

Structure and cavity geometry optimization for ultrashort and high power pulse generation from a VECSEL

Alexandre Laurain, Robert Rockmore, Caleb Baker, Isak Kilen, Sadhvikas Addamane, Ganesh Balakrishnan, Jorg Hader, Antje Ruiz Perez, Wolfgang Stolz, Stephan Koch, Jerome Moloney

Proceedings Volume 10515, 105150H (2018) https://doi.org/10.1117/12.2288526

KEYWORDS: Quantum wells, Mode locking, Coating, Ultrafast phenomena, Reflectivity, Structural design, Semiconductors, Pulsed laser operation, Refractive index, Silicon

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Proceedings Article | 15 February 2018 Presentation + Paper

Degradation mechanism of SESAMs under intense ultrashort pulses in modelocked VECSELs

Sadhvikas Addamane, Darryl Shima, Alexandre Laurain, Hsiu-Ting Chan, Ganesh Balakrishnan, Jerome Moloney

Proceedings Volume 10515, 105150T (2018) https://doi.org/10.1117/12.2290684

KEYWORDS: Mode locking, Quantum wells, Indium gallium arsenide, Gallium arsenide, Transmission electron microscopy, Reflectivity, Femtosecond phenomena, Semiconductors, Laser damage threshold, Absorption

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Proceedings Article | 30 August 2017 Presentation + Paper

Distance and temperature dependent plasmon-enhanced carrier generation and diffusion in InAs/InGaAs/GaAs near-infrared photodetectors

Terefe Habteyes, Sharmin Haq, Sadhvikas Addamane, Bijesh Kafle, Ganesh Balakrishnan, Danhong Huang

Proceedings Volume 10404, 1040408 (2017) https://doi.org/10.1117/12.2275787

KEYWORDS: Diffusion, Gallium arsenide, Indium arsenide, Sensors, Infrared detectors, Near field, Quantum dots, Photodetectors, Surface plasmons, Infrared sensors

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Proceedings Article | 22 February 2017 Presentation + Paper

Multi-angle VECSEL cavities for dispersion control and multi-color operation

Caleb Baker, Maik Scheller, Alexandre Laurain, Hwang-Jye Yang, Antje Ruiz Perez, Wolfgang Stolz, Sadhvikas Addamane, Ganesh Balakrishnan, R. Jason Jones, Jerome Moloney

Proceedings Volume 10087, 100870B (2017) https://doi.org/10.1117/12.2250579

KEYWORDS: Femtosecond phenomena, Laser development, Continuous wave operation, Mode locking, Polarization, Optical filters, Fabry–Perot interferometers, Quantum wells, Vertical external cavity surface emitting lasers, Terahertz radiation, Antireflective coatings

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Proceedings Article | 2 November 2016 Presentation

Effect of AlSb quantum dots on efficiency of GaAs solar cell (Conference Presentation)

Ahmad Mansoori, Sadhvikas Addamane, Emma Renteria, Darryl Shima, Christopher Hains, Ganesh Balakrishnan

Proceedings Volume 9937, 99370A (2016) https://doi.org/10.1117/12.2238291

KEYWORDS: Solar cells, Gallium arsenide, Quantum efficiency, Quantum dots, Absorption, Sun, Solar energy, Current controlled current source

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Proceedings Article | 10 March 2016 Paper

Ultrafast characterization of semiconductor gain and absorber devices for mode-locked VECSELs

Caleb Baker, Maik Scheller, Hwang-Jye Yang, Stephan Koch, Ronald Jones, Jerome Moloney, Antje Ruiz Perez, Wolfgang Stolz, Sadhvikas Addamane, Ganesh Balakrishnan

Proceedings Volume 9734, 97340K (2016) https://doi.org/10.1117/12.2213671

KEYWORDS: Mode locking, Ultrafast phenomena, Semiconductors, Measurement devices, Femtosecond phenomena, Carrier dynamics, Ytterbium, Fiber lasers, Laser beam diagnostics, Laser sources, Reflectivity, Quantum wells, Picosecond phenomena, Mirrors

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Proceedings Article | 26 February 2013 Paper

Investigation of InAs quantum dashes for 1.45-2.1 µm vertical external cavity surface emitting laser active regions

T. Rotter, P. Ahirwar, D. Shima, S. Addamane, C. Hains, L. R. Dawson, G. Balakrishnan

Proceedings Volume 8606, 86060D (2013) https://doi.org/10.1117/12.2005427

KEYWORDS: Indium arsenide, Quantum wells, Gallium arsenide, Quantum dots, Gallium antimonide, Electroluminescent displays, Etching, Transmission electron microscopy, Semiconducting wafers, Crystals

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Proceedings Article | 26 February 2013 Paper

TEM based analysis of III-Sb VECSELs on GaAs substrates for improved laser performance

P. Ahirwar, D. Shima, T. Rotter, S. P. Clark, S. Addamane, C. Hains, L. Dawson, G. Balakrishnan, R. Bedford, Y. Lai, A. Laurain, J. Hader, J. Moloney

Proceedings Volume 8606, 86060E (2013) https://doi.org/10.1117/12.2005301

KEYWORDS: Gallium arsenide, Gallium antimonide, Quantum wells, Interfaces, Transmission electron microscopy, Phonons, Semiconductor lasers, Neodymium, Image resolution

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Showing 5 of 30 publications

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