Beam engineering of quantum cascade lasers

N Yu, Q Wang, F Capasso - Laser & Photonics Reviews, 2012 - Wiley Online Library
This paper reviews beam engineering of mid‐infrared and terahertz quantum cascade
lasers (QCLs), based on two approaches: designer plasmonic structures and deformed …

Small-divergence semiconductor lasers by plasmonic collimation

N Yu, J Fan, QJ Wang, C Pflügl, L Diehl, T Edamura… - Nature …, 2008 - nature.com
Surface plasmons offer the exciting possibility of improving the functionality of optical
devices through the subwavelength manipulation of light. We show that surface plasmons …

Surface-emitting distributed feedback terahertz quantum-cascade lasers in metal-metal waveguides

S Kumar, BS Williams, Q Qin, AWM Lee, Q Hu… - Optics …, 2007 - opg.optica.org
Single-mode surface-emitting distributed feedback terahertz quantum-cascade lasers
operating around 2.9 THz are developed in metal-metal waveguides. A combination of …

High-temperature operation of terahertz quantum cascade laser sources

MA Belkin, QJ Wang, C Pflugl… - IEEE Journal of …, 2009 - ieeexplore.ieee.org
Terahertz (THz) quantum cascade lasers (QCLs) are currently the most advanced
electrically pumped semiconductor lasers in the spectral range 1-5 THz. However, their …

Plasmonics for laser beam sha**

N Yu, R Blanchard, J Fan, QJ Wang… - IEEE Transactions …, 2009 - ieeexplore.ieee.org
This paper reviews our recent work on laser beam sha** using plasmonics. We
demonstrated that by integrating properly designed plasmonic structures onto the facet of …

Surface emitting terahertz quantum cascade laser with a double-metal waveguide

JA Fan, MA Belkin, F Capasso, S Khanna, M Lachab… - Optics …, 2006 - opg.optica.org
We investigate the implementation of surface emission via a second order grating in
terahertz quantum cascade lasers with double-metal waveguides. Absorbing edge …

Mid-infrared black phosphorus surface-emitting laser with an open microcavity

Y Huang, J Ning, H Chen, Y Xu, X Wang, X Ge… - ACS …, 2019 - ACS Publications
The compact and low-cost surface-emitting lasers in the 3–5 μm mid-infrared (MIR) range
are highly desirable for important applications such as gas detection, noninvasive medical …

High-power, surface-emitting quantum cascade laser operating in a symmetric grating mode

C Boyle, C Sigler, JD Kirch, DF Lindberg… - Applied Physics …, 2016 - pubs.aip.org
Grating-coupled surface-emitting (GCSE) lasers generally operate with a double-lobed far-
field beam pattern along the cavity-length direction, which is a result of lasing being favored …

Low divergence single-mode surface emitting quantum cascade ring lasers

E Mujagić, LK Hoffmann, S Schartner, M Nobile… - Applied Physics …, 2008 - pubs.aip.org
We describe the fabrication and operation of surface emitting second-order distributed
feedback quantum cascade ring lasers. The devices exhibit single-mode emission at a …

Quantum cascade lasers with integrated plasmonic antenna-array collimators

N Yu, R Blanchard, J Fan, QJ Wang, C Pflügl… - Optics …, 2008 - opg.optica.org
We demonstrated in simulations and experiments that by defining a properly designed two-
dimensional metallic aperture-grating structure on the facet of quantum cascade lasers, a …