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Mid-Infrared Lead-Salt Surface Emitting Photonic Crystal Laser on Silicon

Published online by Cambridge University Press:  24 January 2012

Binbin Weng
Affiliation:
School of Electrical and Computer Engineering, University of Oklahoma, Norman, Oklahoma 73019, USA
Lin Li
Affiliation:
School of Electrical and Computer Engineering, University of Oklahoma, Norman, Oklahoma 73019, USA
Jijun Qiu
Affiliation:
School of Electrical and Computer Engineering, University of Oklahoma, Norman, Oklahoma 73019, USA State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
Zhisheng Shi
Affiliation:
School of Electrical and Computer Engineering, University of Oklahoma, Norman, Oklahoma 73019, USA
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Abstract

The lead-salt epitaxial membrane embedded with two dimensional hexagonal air holes lattice array was used to develop the mid-infrared (mid-IR) photonic crystal surface emitting laser. For the initial proof-of-concept research work, we demonstrated intensive photonic crystal coupled mid-IR vertical light emissions from the designed structure under cryogenic temperature range. In order to realize room temperature operation, we modified the photonic bands structure, aligned the photonic crystal coupled mode with the gain spectrum of active material at 300 K. As a result, under pulsed mode optical excitation, multi-mode room temperature mid-IR photonic crystal lasing emissions were achieved at wavelength ∼3.5 μm recently. With further optimization, a practical lead-salt continuous-wave operating room temperature surface emitting photonic crystal laser is anticipated soon, and this will explore promising applications in a wide variety of fields.

Type
Research Article
Copyright
Copyright © Materials Research Society 2012

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References

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