Journal ArticleDOI
Mid-infrared quantum cascade lasers
TLDR
The design flexibility of quantum cascade lasers has enabled their expansion into mid-infrared wavelengths of 3-25 µm as discussed by the authors. But their performance has not yet reached the state-of-the-art in terms of power and power efficiency.Abstract:
The design flexibility of quantum cascade lasers has enabled their expansion into mid-infrared wavelengths of 3–25 μm. This Review focuses on the two major areas of recent improvement: power and power efficiency, and spectral performance.read more
Citations
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Journal ArticleDOI
Light-emitting diodes by band-structure engineering in van der Waals heterostructures
Freddie Withers,O. Del Pozo-Zamudio,Artem Mishchenko,A. P. Rooney,Ali Gholinia,Kenji Watanabe,T. Taniguchi,Sarah J. Haigh,Andre K. Geim,Alexander I. Tartakovskii,Kostya S. Novoselov +10 more
TL;DR: In this paper, the authors describe light-emitting diodes (LEDs) made by stacking metallic graphene, insulating hexagonal boron nitride and various semiconducting monolayers into complex but carefully designed sequences.
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Surface-Enhanced Infrared Spectroscopy Using Resonant Nanoantennas.
TL;DR: First applications such as the detection of proteins, the monitoring of dynamic processes, and hyperspectral infrared chemical imaging are discussed, demonstrating the sensitivity and broad applicability of resonant SEIRA.
Journal ArticleDOI
Quantum cascade lasers: 20 years of challenges.
TL;DR: The most recent technological and application advances of quantum cascade lasers are reviewed, underlining the present milestones and future directions from the Mid-infrared to the Terahertz spectral range.
Journal ArticleDOI
ATR-FTIR spectroscopic imaging: recent advances and applications to biological systems
TL;DR: This review summarises some of the recent advances and applications of ATR-FTIR spectroscopic imaging in the area of biomedical studies, including examples of section of aorta, skin tissue and live cells.
Journal ArticleDOI
Mid-infrared integrated photonics on silicon: a perspective
Hongtao Lin,Zhengqian Luo,Zhengqian Luo,Tian Gu,Lionel C. Kimerling,Kazumi Wada,Anuradha M. Agarwal,Juejun Hu +7 more
TL;DR: In this paper, a comprehensive survey on the state-of-the-art of key photonic devices such as waveguides, light sources, modulators, and detectors is presented.
References
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PatentDOI
Quantum cascade laser
TL;DR: In this paper, the authors proposed a quantum cascade laser consisting of a gain region (14) consisting of several layers (20) each including: alternating strata of a first type (28) defining each AllnAs quantum barrier and strata with injection barriers interposed between two of the layers.
Journal ArticleDOI
Terahertz quantum-cascade lasers
TL;DR: In this paper, the state-of-the-art and future prospects for terahertz quantum-cascade laser systems are reviewed, including efforts to increase their operating temperatures, deliver higher output powers and emit longer wavelengths.
Journal ArticleDOI
Continuous wave operation of a mid-infrared semiconductor laser at room temperature.
Mattias Beck,Daniel Hofstetter,Thierry Aellen,Jérôme Faist,Ursula Oesterle,Marc Ilegems,Emilio Gini,H. Melchior +7 more
TL;DR: The results demonstrate the potential of quantum cascade lasers as continuous wave mid-infrared light sources for high-resolution spectroscopy, chemical sensing applications, and free-space optical communication systems.
Journal ArticleDOI
Quantum cascade lasers in chemical physics
Robert F. Curl,Federico Capasso,Claire F. Gmachl,Anatoliy A. Kosterev,Barry McManus,Rafal Lewicki,Michael Pusharsky,Gerard Wysocki,Frank K. Tittel +8 more
TL;DR: In the short space of 15 years since their first demonstration, quantum cascade lasers have become the most useful sources of tunable mid-infrared laser radiation as discussed by the authors, and the potential application of quantum cascade laser in other areas of chemical physics such as research on helium droplets, in population pumping and in matrix isolation infrared photochemistry.
Journal ArticleDOI
High power mid‐infrared (λ∼5 μm) quantum cascade lasers operating above room temperature
Jérôme Faist,Federico Capasso,Carlo Sirtori,Deborah L. Sivco,James N. Baillargeon,Albert L. Hutchinson,S. N. G. Chu,Alfred Y. Cho +7 more
TL;DR: In this paper, the high power operation of mid-infrared quantum cascade lasers at temperatures up to T =320 K was reported, where a molecular beam epitaxy grown InP top cladding layer was also used to optimize heat dissipation.