Application of High-Speed Quantum Cascade Detectors for Mid-Infrared, Broadband, High-Resolution Spectroscopy

Autor: Tatsuo Dougakiuchi, Naota Akikusa

Publikováno v: Sensors, Vol 21, Iss 17, p 5706 (2021)

Broadband, high-resolution, heterodyne, mid-infrared absorption spectroscopy was performed with a high-speed quantum cascade (QC) detector. By strictly reducing the device capacitance and inductance via air-bridge wiring and a small mesa structure, a

Externí odkaz: https://doaj.org/article/9c23f7bd845f4482ad3ee637c7887b14

Si lens-coupled, room-temperature quantum cascade laser sources operating in 0.4-3 THz range

Autor: Shohei Hayashi, Akio Ito, Tatsuo Dougakiuchi, Masahiro Hitaka, Atushi Nakanishi, Kazuue Fujita

Publikováno v: 2022 28th International Semiconductor Laser Conference (ISLC).

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7eca4340abd4cf5157dbd3d88fce9212
https://doi.org/10.23919/islc52947.2022.9943353

Time-stretch infrared spectroscopy

Autor: Takuro Ideguchi, Tadataka Edamura, Akira Kawai, Venkata Ramaiah Badarla, Tatsuo Dougakiuchi, Takayuki Imamura, Kazuki Hashimoto

Publikováno v: Communications Physics, Vol 3, Iss 1, Pp 1-6 (2020)

Improving the spectral acquisition rate of broadband mid-infrared spectroscopy promises further advancements of molecular science and technology. Unlike pump-probe spectroscopy, which requires repeated measurements with different pump-probe delays, c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e54542476bcfdd8ffcc3cbf1ec84597f
http://link.springer.com/article/10.1038/s42005-020-00420-3

Direct Observation of Terahertz Frequency Comb Generation in Difference-Frequency Quantum Cascade Lasers

Autor: Saverio Bartalini, Masahiro Hitaka, Tatsuo Dougakiuchi, Paolo De Natale, Malik Nafa, Kazuue Fujita, Tadataka Edamura, Luigi Consolino, Francesco Cappelli, Michele De Regis, Akio Ito

Publikováno v: Applied Sciences, Vol 11, Iss 1416, p 1416 (2021)
Applied Sciences
Volume 11
Issue 4
Applied sciences 11 (2021): 1416–1416. doi:10.3390/app11041416
info:cnr-pdr/source/autori:Consolino, Luigi; Nafa, Malik; De Regis, Michele; Cappelli, Francesco; Bartalini, Saverio; Ito, Akio; Hitaka, Masahiro; Dougakiuchi, Tatsuo; Edamura, Tadataka; De Natale, Paolo; Fujita, Kazuue/titolo:Direct observation of terahertz frequency comb generation in difference-frequency quantum cascade lasers/doi:10.3390%2Fapp11041416/rivista:Applied sciences/anno:2021/pagina_da:1416/pagina_a:1416/intervallo_pagine:1416–1416/volume:11

Terahertz quantum cascade laser sources based on intra-cavity difference frequency generation from mid-IR devices are an important asset for applications in rotational molecular spectroscopy and sensing, beingthe only electrically pumped device able

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e85b0980a90728a7f9df521be02974c2
https://www.mdpi.com/2076-3417/11/4/1416

Broadly tunable lens-coupled nonlinear quantum cascade lasers in the sub-THz to THz frequency range

Autor: Kazuue Fujita, Shohei Hayashi, Akio Ito, Tatsuo Dougakiuchi, Masahiro Hitaka, Atsushi Nakanishi

Publikováno v: Photonics Research. 10:703

Room-temperature terahertz (THz) quantum cascade laser sources with intracavity difference-frequency nonlinear mixing are electrically pumped monolithic semiconductor laser sources operating in the 0.6–6 THz spectral range. We report widely tunable

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::74982227da403f9766e489672a52499a
https://doi.org/10.1364/prj.443819