Journal ArticleDOI
Design and fabrication of photonic crystal resonators for single-mode and vertical surface emission from strain-compensated quantum cascade lasers operating at 4.32 μm
Shinji Saito,Rei Hashimoto,Kei Kaneko,Tsutomu Kakuno,Yuanzhao Yao,Naoki Ikeda,Yoshimasa Sugimoto,Takaaki Mano,Takashi Kuroda,Hirotaka Tanimura,Shigeyuki Takagi,Kazuaki Sakoda +11 more
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This article is published in Applied Physics Express.The article was published on 2021-10-01. It has received 0 citations till now. The article focuses on the topics: Quantum cascade laser & Photonic crystal.read more
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Journal ArticleDOI
Continuous‐wave vertically emitting photonic crystal terahertz laser
TL;DR: In this paper, a robust surface emitting continuous wave terahertz quantum cascade (QC) laser is realized in a two-dimensional PhC structure by a second order Bragg grating extractor that simultaneously provides the boundary condition necessary for mode selection.
Journal ArticleDOI
Photonic engineering of surface-emitting terahertz quantum cascade lasers
L. Mahler,Alessandro Tredicucci +1 more
TL;DR: In this article, a review of resonators for surface emission is presented to improve radiative and collection-efficiencies of terahertz quantum cascade laser (THz QCL).
Journal ArticleDOI
Room temperature surface emission on large-area photonic crystal quantum cascade lasers
Yong Liang,Zhixin Wang,Johanna Wolf,Emilio Gini,Mattias Beck,Bo Meng,Jérôme Faist,Giacomo Scalari +7 more
TL;DR: In this paper, a large area (1.1 mm × 1.1µmm) photonic crystal quantum cascade laser was designed and fabricated, enabling singlemode (wavelength ∼ 8.5 µm) surface emission at room temperature, with a maximum peak power up to 176 mW.
Journal ArticleDOI
Large area photonic crystal quantum cascade laser with 5 W surface-emitting power
Zhixin Wang,Yong Liang,Bo Meng,Yan-Ting Sun,Giriprasanth Omanakuttan,Emilio Gini,Mattias Beck,Ilia Sergachev,Sebastian Lourdudoss,Jérôme Faist,Giacomo Scalari +10 more
TL;DR: By introducing in-plane asymmetry to the pillar shape and optimizing the current injection with a grid-like window contact, the maximum peak power of the PhC-QCL is up to 5 W and the surface emitting beam has a crossing shape with 10° divergence.
Proceedings ArticleDOI
VCSEL: born small and grown big
TL;DR: This is a talk from the invention of the surface emitting laser by the author to research, peening development, and recent strides toward expansion of applications.