Abstract

Quantum cascade lasers (QCLs) are the sources of choice for many laser-based applications in the mid-infrared region. Because of the unique 2D in-plane coupling mechanism, a photonic crystal (PhC)-QCL [1] has superior advantages on mode selection, surface emission, and beam control. In this work, we present a large-area (1.5 mm × 1.5 mm) PhC-QCL operating under pulsed mode at room temperature (289 K). The surface-emitting peak power is as high as 1 W.

Keywords:
Quantum cascade laser Photonic crystal Cascade Optoelectronics Materials science Laser Optics Photonics Coupling (piping) Semiconductor laser theory Quantum Physics Semiconductor Terahertz radiation Chemistry

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Topics

Spectroscopy and Laser Applications
Physical Sciences →  Chemistry →  Spectroscopy
Semiconductor Lasers and Optical Devices
Physical Sciences →  Engineering →  Electrical and Electronic Engineering
Photonic Crystals and Applications
Physical Sciences →  Physics and Astronomy →  Atomic and Molecular Physics, and Optics
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