Mid-infrared quantum cascade lasers

Y Yao, AJ Hoffman, CF Gmachl - Nature Photonics, 2012 - nature.com
Mid-infrared quantum cascade lasers are semiconductor injection lasers whose active core
implements a multiple-quantum-well structure. Relying on a designed staircase of …

[HTML][HTML] Modeling techniques for quantum cascade lasers

C Jirauschek, T Kubis - Applied Physics Reviews, 2014 - pubs.aip.org
Quantum cascade lasers are unipolar semiconductor lasers covering a wide range of the
infrared and terahertz spectrum. Lasing action is achieved by using optical intersubband …

Quantum cascade lasers: 20 years of challenges

MS Vitiello, G Scalari, B Williams, P De Natale - Optics express, 2015 - opg.optica.org
We review the most recent technological and application advances of quantum cascade
lasers, underlining the present milestones and future directions from the Mid-infrared to the …

Room temperature quantum cascade lasers with 27% wall plug efficiency

Y Bai, N Bandyopadhyay, S Tsao, S Slivken… - Applied Physics …, 2011 - pubs.aip.org
Using the recently proposed shallow-well design, we demonstrate InP based quantum
cascade lasers (QCLs) emitting around 4.9 μ m with 27% and 21% wall plug efficiencies in …

Quantum cascade lasers: from tool to product

M Razeghi, QY Lu, N Bandyopadhyay, W Zhou… - Optics express, 2015 - opg.optica.org
The quantum cascade laser (QCL) is an important laser source in the mid-infrared and
terahertz frequency range. The past twenty years have witnessed its tremendous …

[HTML][HTML] Rebalancing of internally generated carriers for mid-infrared interband cascade lasers with very low power consumption

I Vurgaftman, WW Bewley, CL Canedy, CS Kim… - Nature …, 2011 - nature.com
The interband cascade laser differs from any other class of semiconductor laser,
conventional or cascaded, in that most of the carriers producing population inversion are …

Simultaneous cancer and tumor microenvironment subtyping using confocal infrared microscopy for all-digital molecular histopathology

S Mittal, K Yeh, LS Leslie, S Kenkel… - Proceedings of the …, 2018 - National Acad Sciences
Histopathology based on spatial patterns of epithelial cells is the gold standard for clinical
diagnoses and research in carcinomas; although known to be important, the tissue …

[HTML][HTML] Towards nano-scale photonics with micro-scale photons: the opportunities and challenges of mid-infrared plasmonics

S Law, V Podolskiy, D Wasserman - Nanophotonics, 2013 - degruyter.com
Surface plasmon polaritons and their localized counterparts, surface plasmons, are widely
used at visible and near-infrared (near-IR) frequencies to confine, enhance, and manipulate …

[HTML][HTML] Room temperature continuous wave, monolithic tunable THz sources based on highly efficient mid-infrared quantum cascade lasers

Q Lu, D Wu, S Sengupta, S Slivken, M Razeghi - Scientific reports, 2016 - nature.com
A compact, high power, room temperature continuous wave terahertz source emitting in a
wide frequency range (ν~ 1–5 THz) is of great importance to terahertz system development …

Room temperature continuous wave operation of λ∼ 3–3.2 μm quantum cascade lasers

N Bandyopadhyay, Y Bai, S Tsao, S Nida… - Applied Physics …, 2012 - pubs.aip.org
We demonstrate quantum cascade lasers emitting at wavelengths of 3–3.2 μm in the InP-
based material system. The laser core consists of GaInAs/AlInAs using strain balancing …