External cavity quantum cascade laser emitting from 12.3 to 13.2 $$\upmu$$ μ m

Autor: Jan Tomko, Sven Peters, W. Ted Masselink, Jan Kischkat, Sylvain Mathonnière, Yohei Matsuoka, Mykhaylo P. Semtsiv

Publikováno v: Applied Physics B

We describe a long-wavelength external ccavity quantum cascade laser, emitting from 12.3 to $$13.2\ \upmu \text {m}$$ integrated into a compact design to promote portability. For this purpose, a new type of anti-reflection coating was designed as wel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b259b5aa5407b06ab51aec115ab7b2a
https://doi.org/10.1007/s00340-018-7017-7

Mid-infrared upconversion based hyperspectral imaging

Autor: Jan Tomko, Mykhaylo P. Semtsiv, Saher Junaid, Christian Pedersen, Peter Tidemand-Lichtenberg, W. Ted Masselink, Jan Kischkat

Publikováno v: Optics Express
Junaid, S, Tomko, J, Semtsiv, M P, Kischkat, J, Masselink, W T, Pedersen, C & Tidemand-Lichtenberg, P 2018, ' Mid-infrared upconversion based hyperspectral imaging ', Optics Express, vol. 26, no. 3, pp. 2203-2211 . https://doi.org/10.1364/OE.26.002203

Mid-infrared hyperspectral imaging has in the past decade emerged as a promising tool for medical diagnostics. In this work, nonlinear frequency upconversion based hyperspectral imaging in the 6 to 8 mu m spectral range is presented for the first tim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91770a1194a62aa5fd9c8d16bdcc6d69

Broadly tunable external cavity quantum cascade laser for medical hyperspectral imaging at 11 μm wavelength region

Autor: William Ted Masselink, Jan Kischkat, Mykhaylo P. Semtsiv, Yohei Matsuoka

Publikováno v: 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).

Molecular vibrational spectroscopy within the mid-infrared part of the spectrum is an attractive analysis technique. The spectral region required for the analysis requires tens of cm−1 tunability centered somewhere typically between 3 to 15 μm, de

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cd951bb38b28e308976e71f8dfdb7c37
https://doi.org/10.1109/cleoe-eqec.2017.8087794

Growth initiation for buried-heterostructure quantum-cascade laser regrowth by gas-source molecular-beam epitaxy

Autor: G. Monastyrskyi, William Ted Masselink, A. Aleksandrova, M. Elagin, Jan Kischkat, Yuri V. Flores, Sergii Kurlov, Mykhaylo P. Semtsiv

Publikováno v: Journal of Crystal Growth. 398:40-44

We describe an optimized growth sequence for the overgrowth of quantum cascade laser ridge sidewalls with semi-insulating InP:Fe. A thin In0.52Al0.48As spacer layer grown on the laser ridge sidewalls before InP:Fe prevents the formation of void defec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0fa97fb13f41abf74d05a315f0f50ec3
https://doi.org/10.1016/j.jcrysgro.2014.04.010

Intracavity photoacoustic sensing of water vapor with a continuously tunable external-cavity quantum-cascade laser operating near 5.5 μm

Autor: Vladimir S. Starovoitov, Mykhaylo P. Semtsiv, W. Ted Masselink, Jan Kischkat

Publikováno v: Optics letters. 41(21)

A gas sensor integrating a pulsed external-cavity quantum-cascade laser and a photoacoustic (PA) cell placed inside the laser cavity is described. The laser design allows a continuously tunable and mode-hop-free operation with an estimated instrument

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d04cb44c33e13cbe7390b6291e665eb
https://pubmed.ncbi.nlm.nih.gov/27805659