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Accession Number ADA564598
Title Electrically Driven Photonic Crystal Nanocavity Devices.
Publication Date 2012
Media Count 12p
Personal Author A. Majumdar B. Ellis G. Shambat J. Petykiewicz M. A. Mayer
Abstract Interest in photonic crystal nanocavities is fueled by advances in device performance, particularly in the development of low-threshold laser sources. Effective electrical control of high performance photonic crystal lasers has thus far remained elusive due to the complexities associated with current injection into cavities. A fabrication procedure for electrically pumping photonic crystal membrane devices using a lateral p-i-n junction has been developed and is described in this study. We have demonstrated electrically pumped lasing in our junctions with a threshold of 181 nA at 50 K. The lowest threshold ever demonstrated in an electrically pumped laser. At room temperature, we find that our devices behave as single-mode light-emitting diodes (LEDs), which when directly modulated, have an ultrafast electrical response up to 10 GHz corresponding to less than 1 fJ/bit energy operation. The lowest for any optical transmitter. In addition, we have demonstrated electrical pumping of photonic crystal nanobeam LEDs and have built fiber taper coupled electro-optic modulators. Fibercoupled photodetectors based on two- photon absorption are also demonstrated as well as multiply integrated components that can be independently electrically controlled. The presented electrical injection platform is a major step forward in providing practical low power and integrable devices for on-chip photonics.
Keywords Band gaps
Cavity resonators
Electric current
Electrical equipment
Integrated systems
Laser pumping
Light emitting diodes
Low power
Photonic crystals
Quantum dots

Source Agency Non Paid ADAS
NTIS Subject Category 46D - Solid State Physics
Corporate Author Stanford Univ., CA. Dept. of Electrical Engineering.
Document Type Journal article
Title Note Journal article.
NTIS Issue Number 1303
Contract Number FA9550-09-1-0704

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