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An integrable, electrically pumped photonic crystal nanocavity
Stanford Reference:
09-427
Abstract
Stanford researchers have patented a design for electronically pumping photonic crystal membrane nanocavities using a lateral p-i-n junction. The p-i-n junction can be defined by any number of methods, including ion implantation, regrowth, or diffusion doping. The junction is designed to direct current flow into the nanocavity region, which acts as a ‘hall of mirrors to reflect photons back toward the center of the laser.’ As a result, the device operates more efficiently, at a lower threshold voltage and higher speed. This technique is compatible with arbitrary photonic crystal designs, and any photonic crystal device that uses a nanocavity, including:
electrically pumped photonic crystal LED’s or lasers
electrically driven photonic crystal electro-optic devices such as modulators or splitters
controllably charging a quantum dot in a photonic crystal cavity
SEM of photonic crystal nanocavity
Image courtesy of Jelena Vuckovic
This easy to fabricate technology facilitates high-volume manufacturing of photonic devices, as well as integrating photonic circuits, complex photonic chips, and high-performance biomedical sensors.
Stage of Development – Prototype
Researchers in the Nanoscale and Quantum Photonics Lab have demonstrated an electrically pumped laser that is both easy to manufacture and delivers dramatically reduced energy consumption.
Applications
Photonic integrated circuits used in small-scale, low latency, high-bandwidth information processing
Photonic networks / optical communication system devices (e.g. modulators, splitters, detectors, etc.)
Quantum computing, quantum dot charging
LEDs, lasers
Solar cells
Biomedical sensors.
Advantages
Higher speed, lower voltage threshold, and more efficient.
Monolithic integration of all optical components interconnected to form an optoelectronic circuit.
Small, easy to fabricate, and integrable with other photonic devices.
Versatile technique is compatible with all membrane photonic crystal designs
Publications
Ellis, Bryan, Jelena Vuckovic, and Ilya Fushman. "
Practical electrically pumped photonic crystal nanocavity
." U.S. Patent 8,471,352, issued June 25, 2013.
Ellis, Bryan, Tomas Sarmiento, Marie Mayer, Bingyang Zhang, James Harris, Eugene Haller, and Jelena Vuckovic. "
Electrically pumped photonic crystal nanocavity light sources using a laterally doped pin junction
." Applied Physics Letters96, no. 18 (2010): 181103. https://doi.org/10.1063/1.3425663
Ellis, Bryan, Marie A. Mayer, Gary Shambat, Tomas Sarmiento, James Harris, Eugene E. Haller, and Jelena Vučković. "
Ultralow-threshold electrically pumped quantum-dot photonic-crystal nanocavity laser
." Nature photonics 5, no. 5 (2011): 297-300. https://doi.org/10.1038/nphoton.2011.51
Perlman, David. "
Stanford develops super-fast computer device
." SFGate.com, San Francisco Chronicle, 16 Nov 2011.
Myers, Andrew. "
Light and Magic: Stanford engineers create a tiny, energy-efficient laser for optical communication systems
." news.stanford.edu, Stanford Report, May 16, 2011.
Related Web Links
Nanoscale and Quantum Photonics Lab
Innovators & Portfolio
Bryan Ellis
Ilya Fushman
Jelena Vuckovic
more technologies from Jelena Vuckovic »
Patent Status
Published Application: 20110248242
Issued : 8,471,352 (USA)
Date Released
3/31/2017 12:00
Licensing Contact
Luis Mejia, Senior Licensing Manager, Physical Sciences
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Related Keywords
PS: semiconductor: optical
quantum dot
PS: photonics: nanophotonics
PS: quantum computing
PS: photonics: systems
PS: photonics: lasers
electroluminescence
PS: photonics: devices
PS: electronics: LED (light emitting diodes)
PS: semiconductor: III-V
GaAs
PS: photonics: integrated circuit
PS: electronics: optoelectronic
PS: sensors: biosensor
PS: photonics: silicon
PS: communications: optical