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Accession Number
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ADA564598
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Title
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Electrically Driven Photonic Crystal Nanocavity Devices.
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Publication Date
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2012
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Media Count
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12p
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Personal Author
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A. Majumdar B. Ellis G. Shambat J. Petykiewicz M. A. Mayer
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Abstract
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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.
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Keywords
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Band gaps
Cavity resonators
Chips(Electronics)
Electric current
Electrical equipment
Electrooptics
Fabrication
Integrated systems
Laser pumping
Lasers
Light emitting diodes
Low power
Modulation
Photodetectors
Photonic crystals
Quantum dots
Reprints
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Source Agency
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Non Paid ADAS
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NTIS Subject Category
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46D - Solid State Physics
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Corporate Author
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Stanford Univ., CA. Dept. of Electrical Engineering.
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Document Type
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Journal article
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Title Note
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Journal article.
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NTIS Issue Number
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1303
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Contract Number
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FA9550-09-1-0704
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