R
Rajeev J. Ram
Researcher at Massachusetts Institute of Technology
Publications - 356
Citations - 12013
Rajeev J. Ram is an academic researcher from Massachusetts Institute of Technology. The author has contributed to research in topics: Photonics & CMOS. The author has an hindex of 52, co-authored 346 publications receiving 10610 citations. Previous affiliations of Rajeev J. Ram include University of California, Santa Barbara & Singapore–MIT alliance.
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Journal ArticleDOI
Single-chip microprocessor that communicates directly using light
Chen Sun,Chen Sun,Mark T. Wade,Yunsup Lee,Jason S. Orcutt,Jason S. Orcutt,Luca Alloatti,Michael Georgas,Andrew Waterman,Jeffrey M. Shainline,Jeffrey M. Shainline,Rimas Avizienis,Sen Lin,Benjamin Moss,Rajesh Kumar,Fabio Pavanello,Amir H. Atabaki,Henry Cook,Albert Ou,Jonathan Leu,Yu-Hsin Chen,Krste Asanovic,Rajeev J. Ram,Milos A. Popovic,Vladimir Stojanovic +24 more
TL;DR: This demonstration could represent the beginning of an era of chip-scale electronic–photonic systems with the potential to transform computing system architectures, enabling more powerful computers, from network infrastructure to data centres and supercomputers.
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Integrating photonics with silicon nanoelectronics for the next generation of systems on a chip.
Amir H. Atabaki,Sajjad Moazeni,Fabio Pavanello,Fabio Pavanello,Hayk Gevorgyan,Jelena Notaros,Jelena Notaros,Luca Alloatti,Luca Alloatti,Mark T. Wade,Chen Sun,Seth Kruger,Huaiyu Meng,Kenaish Al Qubaisi,Imbert Wang,Bohan Zhang,Anatol Khilo,Christopher Baiocco,Milos A. Popovic,Vladimir Stojanovic,Rajeev J. Ram +20 more
TL;DR: A way of integrating photonics with silicon nanoelectronics is described, using polycrystalline silicon on glass islands alongside transistors on bulk silicon complementary metal–oxide–semiconductor chips to address the demand for high-bandwidth optical interconnects in data centres and high-performance computing.
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Nonequilibrium condensates and lasers without inversion: Exciton-polariton lasers
TL;DR: The relation between the conditions for the onset of equilibrium and nonequilibrium excitonic condensates and a different type of laser without inversion which utilizes many-body coherences is discussed.
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Photonic ADC: overcoming the bottleneck of electronic jitter.
Anatol Khilo,Steven J. Spector,Matthew E. Grein,Amir H. Nejadmalayeri,C.W. Holzwarth,Michelle Y. Sander,Marcus S. Dahlem,Michael Y. Peng,Michael W. Geis,Nicole DiLello,Jung U. Yoon,Ali R. Motamedi,Jason S. Orcutt,J. P. Wang,Cheryl Sorace-Agaskar,Milos A. Popovic,Jie Sun,G.-R. Zhou,Hyunil Byun,Jian Chen,Judy L. Hoyt,Henry I. Smith,Rajeev J. Ram,Michael H. Perrott,Theodore M. Lyszczarz,Erich P. Ippen,Franz X. Kärtner +26 more
TL;DR: This work demonstrates that the photonic approach can deliver on its promise by digitizing a 41 GHz signal with 7.0 effective bits using a photonic ADC built from discrete components, a 4-5 times improvement over the performance of the best electronic ADCs which exist today.
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Monolithic integration of room-temperature cw GaAs/AlGaAs lasers on Si substrates via relaxed graded GeSi buffer layers
Michael E. Groenert,Christopher W. Leitz,Arthur J. Pitera,Vicky K. Yang,Harry Lee,Rajeev J. Ram,Eugene A. Fitzgerald +6 more
TL;DR: In this article, a GaAs/AlxGa(1−x)As quantum well laser has been demonstrated via organometallic chemical vapor deposition on relaxed graded Ge/GeSi/Si virtual substrates on Si.