Prof. Rajeev Jagga Ram Profile

Prof. Rajeev Jagga Ram

Professor at Massachusetts Institute of Technology

SPIE Involvement:

Author

Publications (24)

Proceedings Article | 13 March 2024 Presentation

Towards all-silicon imaging and sensing on CMOS chips

Zheng Li, Jin Xue, Marc de Cea, Jaehwan Kim, Rajeev Ram

Proceedings Volume PC12891, PC128910H (2024) https://doi.org/10.1117/12.3001238

KEYWORDS: Light emitting diodes, Quantum sensing, Quantum logic gates, Quantum imaging, Microscopes, Silicon, Pulse signals, LIDAR, Holography, Spatial coherence

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Proceedings Article | 13 March 2024 Poster

combining Raman and auto-fluorescence imaging for sub-cellular chemical analysis in intact plant tissue

Zheng Li, Elise Uyehara, Rajeev Ram

Proceedings Volume PC12834, PC128340J (2024) https://doi.org/10.1117/12.3001252

KEYWORDS: Raman spectroscopy, Tissues, Chemical analysis, Autofluorescence imaging, Equipment, Confocal microscopy, Chlorophyll, Biological samples, Autofluorescence, Stem cells

Proceedings Article | 15 June 2023 Presentation

Photonic readout of superconducting nanowire single photon counting detectors

Rajeev Ram, Marc de Cea Falco, Emma Wollman, Matthew Shaw

Proceedings Volume PC12512, PC1251204 (2023) https://doi.org/10.1117/12.2663806

KEYWORDS: Superconductors, Nanowires, Single photon, Sensors, Cryogenics, Optical fibers, Modulators, Modulation, Wavelength division multiplexing, Single photon detectors

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Proceedings Article | 22 March 2023 Presentation

High-performance electronic-photonic interfaces: from AI to quantum

Rajeev Ram

Proceedings Volume PC12424, PC1242401 (2023) https://doi.org/10.1117/12.2661685

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Proceedings Article | 5 March 2022 Presentation

CMOS nanoLEDs

Rajeev Jagga Ram, Jin Xue

Proceedings Volume PC12010, PC1201002 (2022) https://doi.org/10.1117/12.2619079

KEYWORDS: Silicon, Sensors, Light emitting diodes, Interfaces, Silicon photonics, Photonics, Near infrared, Nanotechnology, Microelectronics, Light sources

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Proceedings Article | 14 March 2018 Presentation

Characterization of actively-quenched SPADs in 90nm bulk CMOS at cryogenic temperatures (Conference Presentation)

Daniel Kramnik, Karan Mehta, Rajeev Ram

Proceedings Volume 10540, 1054013 (2018) https://doi.org/10.1117/12.2290717

KEYWORDS: Cryogenics, Sensors, Avalanche photodiodes, Photodetectors, Quenching (fluorescence), Temperature metrology, Quantum efficiency, Single photon detectors, Photon counting, CMOS sensors

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Proceedings Article | 14 March 2018 Presentation

Thermodynamics on visible light-emitting diodes (Conference Presentation)

Jin Xue, Zheng Li, Rajeev Ram

Proceedings Volume 10550, 105500H (2018) https://doi.org/10.1117/12.2291255

KEYWORDS: Light emitting diodes, Thermodynamics, External quantum efficiency, Phonons, Quantum efficiency, Mid-IR, Thermography

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Proceedings Article | 17 February 2017 Presentation + Paper

A design of a PhC-enhanced LED for electroluminescence cooling

Zheng Li, Jin Xue, Rajeev Ram

Proceedings Volume 10121, 1012108 (2017) https://doi.org/10.1117/12.2253403

KEYWORDS: Light emitting diodes, Electroluminescence, Photonic crystals, Absorption, Heat flux, Finite-difference time-domain method, Thermal modeling, External quantum efficiency, Metals, Temperature metrology, Convection

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Proceedings Article | 16 February 2017 Presentation + Paper

Thermophotonics for ultra-high efficiency visible LEDs

Rajeev Ram

Proceedings Volume 10124, 1012414 (2017) https://doi.org/10.1117/12.2251373

KEYWORDS: Light emitting diodes, Gallium nitride, Diodes, Light sources and illumination, Visible radiation, Energy efficiency, Manufacturing, Infrared radiation, Thermoelectric materials, LED lighting, External quantum efficiency, Solid state lighting, Electrons, Lamps, Phonons

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Proceedings Article | 3 April 2015 Paper

Photonic-electronic integration with polysilicon photonics in bulk CMOS

Rajeev Ram

Proceedings Volume 9367, 93670N (2015) https://doi.org/10.1117/12.2175462

KEYWORDS: Waveguides, Photonics, Electronics, Modulators, Transistors, Silicon, Photodetectors, Crystals, Absorption, Surface roughness

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Proceedings Article | 3 April 2015 Paper

Monolithic silicon photonics in a sub-100nm SOI CMOS microprocessor foundry: progress from devices to systems

Miloš Popović, Mark Wade, Jason Orcutt, Jeffrey Shainline, Chen Sun, Michael Georgas, Benjamin Moss, Rajesh Kumar, Luca Alloatti, Fabio Pavanello, Yu-Hsin Chen, Kareem Nammari, Jelena Notaros, Amir Atabaki, Jonathan Leu, Vladimir Stojanović, Rajeev Ram

Proceedings Volume 9367, 93670M (2015) https://doi.org/10.1117/12.2084604

KEYWORDS: Modulators, Transmitters, Waveguides, Transistors, Microelectronics, Electronics, Silicon, Photonic devices, Receivers, CMOS technology

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Proceedings Article | 8 March 2014 Paper

Spoked-ring microcavities: enabling seamless integration of nanophotonics in unmodified advanced CMOS microelectronics chips

Mark Wade, Jeffrey Shainline, Jason Orcutt, Rajeev Ram, Vladimir Stojanovic, Milos Popovic

Proceedings Volume 8991, 89910B (2014) https://doi.org/10.1117/12.2054788

KEYWORDS: Waveguides, Photonics, Computer aided design, Silicon, Optical microcavities, Modulators, Electronics, Transistors, Finite-difference time-domain method, Microelectronics

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Proceedings Article | 8 March 2014 Paper

Tolerance analysis for efficient MMI devices in silicon photonics

Carmen Vázquez, Alberto Tapetado, Jason Orcutt, Huaiyu Charles Meng, Rajeev Ram

Proceedings Volume 8990, 89900A (2014) https://doi.org/10.1117/12.2039730

KEYWORDS: Brain-machine interfaces, Multimode interference devices, Waveguides, Tolerancing, Manufacturing, Optics manufacturing, Electronics, Electroluminescence, Silicon, Silicon photonics

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Proceedings Article | 14 March 2013 Paper

Integration of silicon photonics into electronic processes

Jason Orcutt, Rajeev Ram, Vladimir Stojanović

Proceedings Volume 8629, 86290F (2013) https://doi.org/10.1117/12.2004811

KEYWORDS: Silicon, Waveguides, Photonic devices, Standards development, Transistors, Semiconducting wafers, Manufacturing, Modulators, Silicon photonics, Electronic components

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Proceedings Article | 11 March 2013 Paper

Electro-luminescent cooling: light emitting diodes above unity efficiency

Parthiban Santhanam, Duanni Huang, Dodd Gray, Rajeev Ram

Proceedings Volume 8638, 863807 (2013) https://doi.org/10.1117/12.2005093

KEYWORDS: Light emitting diodes, External quantum efficiency, Electronics, Thermodynamics, Phonons, Diodes, Black bodies, Semiconductors, Quantum efficiency, Temperature metrology

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Proceedings Article | 18 February 2009 Paper

High speed analog-to-digital conversion with silicon photonics

C. Holzwarth, R. Amatya, M. Araghchini, J. Birge, H. Byun, J. Chen, M. Dahlem, N. DiLello, F. Gan, J. Hoyt, E. Ippen, F. Kärtner, A. Khilo, J. Kim, M. Kim, A. Motamedi, J. Orcutt, M. Park, M. Perrott, M. Popovic, R. Ram, H. Smith, G. Zhou, S. Spector, T. Lyszczarz, M. Geis, D. Lennon, J. Yoon, M. Grein, R. Schulein, S. Frolov, A. Hanjani, J. Shmulovich

Proceedings Volume 7220, 72200B (2009) https://doi.org/10.1117/12.808952

KEYWORDS: Silicon, Waveguides, Modulators, Diodes, Electronics, Germanium, Photodiodes, Femtosecond phenomena, Optical filters, Mode locking

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Proceedings Article | 13 February 2008 Paper

Photonic analog-to-digital conversion with electronic-photonic integrated circuits

F. Kärtner, R. Amatya, M. Araghchini, J. Birge, H. Byun, J. Chen, M. Dahlem, N. DiLello, F. Gan, C. Holzwarth, J. Hoyt, E. Ippen, A. Khilo, J. Kim, M. Kim, A. Motamedi, J. Orcutt, M. Park, M. Perrott, M. Popović, R. Ram, H. Smith, G. Zhou, S. Spector, T. Lyszczarz, M. Geis, D. Lennon, J. Yoon, M. Grein, R. Schulein

Proceedings Volume 6898, 689806 (2008) https://doi.org/10.1117/12.767926

KEYWORDS: Silicon, Modulators, Waveguides, Optical filters, Diodes, Germanium, Electronics, Photodetectors, Phase shifts, Photodiodes

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Proceedings Article | 14 February 2007 Paper

Integrated optical components in silicon for high speed analog-to-digital conversion

S. Spector, T. Lyszczarz, M. Geis, D. Lennon, J. Yoon, M. Grein, R. Schulein, R. Amatya, J. Birge, J. Chen, H. Byun, F. Gan, C. Holzwarth, J. Hoyt, E. Ippen, F. Kärtner, A. Khilo, O. Olubuyide, J. Orcutt, M. Park, M. Perrott, M. Popović, T. Barwicz, M. Dahlem, R. Ram, H. Smith

Proceedings Volume 6477, 64770O (2007) https://doi.org/10.1117/12.705219

KEYWORDS: Silicon, Optical filters, Diodes, Modulators, Waveguides, Electronics, Modulation, Femtosecond phenomena, Resonators, Photodiodes

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Proceedings Article | 3 March 2006 Paper

Faraday rotation in magneto-optical semiconductor waveguides for integrated isolators

Xiaoyun Guo, Tauhid Zaman, Rajeev Ram

Proceedings Volume 6124, 612416 (2006) https://doi.org/10.1117/12.652611

KEYWORDS: Waveguides, Optical isolators, Iron, Polarization, Magnetism, Birefringence, Semiconductors, Magnetic semiconductors, Etching, Light wave propagation

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Proceedings Article | 1 March 2006 Paper

Electronic photonic integrated circuits for high speed, high resolution, analog to digital conversion

F. Kärtner, S. Akiyama, G. Barbastathis, T. Barwicz, H. Byun, D. Danielson, F. Gan, F. Grawert, C. Holzwarth, J. Hoyt, E. Ippen, M. Kim, L. Kimerling, J. Liu, J. Michel, O. Olubuyide, J. Orcutt, M. Park, M. Perrott, M. Popovic, P. Rackich, R. Ram, H. Smith, M. Watts

Proceedings Volume 6125, 612503 (2006) https://doi.org/10.1117/12.655762

KEYWORDS: Germanium, Silicon, Modulators, Modulation, Waveguides, Microrings, Analog electronics, Mode locking, Resonators, Diodes

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Proceedings Article | 25 March 2005 Paper

Magneto-optical semiconductor waveguides for integrated isolators

Xiaoyun Guo, Tauhid Zaman, Rajeev Ram

Proceedings Volume 5729, (2005) https://doi.org/10.1117/12.589332

KEYWORDS: Waveguides, Birefringence, Optical isolators, Iron, Magnetism, Etching, Semiconductors, Magnetic semiconductors, Polarization, Fabry–Perot interferometers

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Proceedings Article | 16 May 2003 Paper

Excess photon noise in semiconductor cascade lasers

Farhan Rana, Peter Mayer, Rajeev Ram

Proceedings Volume 5111, (2003) https://doi.org/10.1117/12.500877

KEYWORDS: Quantum cascade lasers, Semiconductor lasers, Semiconductors, Laser resonators, Diodes, Negative feedback, Quantum efficiency, Imaging spectroscopy, Waveguide lasers, Waveguides

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Proceedings Article | 4 December 2002 Paper

Cascade semiconductor lasers for telecommunications

Rajeev Ram, Farhan Rana, Peter Mayer, Holger Schmidt

Proceedings Volume 4871, (2002) https://doi.org/10.1117/12.457279

KEYWORDS: Quantum cascade lasers, Semiconductor lasers, Photons, Signal to noise ratio, Electrons, Interference (communication), Modulation, Quantum wells, Telecommunications, Systems modeling

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Proceedings Article | 10 May 1996 Paper

Lasers without inversion in quantum well intersubband transitions

Atac Imamoglu, Kenneth Campman, Hans-Werner Schmidt, Rajeev Ram, Arthur Gossard

Proceedings Volume 2798, (1996) https://doi.org/10.1117/12.239474

KEYWORDS: Transparency, Absorption, Quantum wells, Infrared radiation, Semiconductor lasers, Semiconductors, Carbon dioxide lasers, Optical amplifiers, Nonlinear optics, Quantum cascade lasers

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Showing 5 of 24 publications

Conference Committee Involvement (2)

Passive Components and Fiber-based Devices V

27 October 2008 | Hangzhou, China

Fluctuations and Noise in Photonics and Quantum Optics

2 June 2003 | Santa Fe, New Mexico, United States

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