Coagulation and ablation of biological soft tissue by quantum cascade laser with peak wavelength of 5.7 μm

Autor: Keisuke Hashimura, Katsunori Ishii, Naota Akikusa, Tadataka Edamura, Harumasa Yoshida, Kunio Awazu

Publikováno v: Journal of Innovative Optical Health Sciences, Vol 7, Iss 3, Pp 1450029-1-1450029-9 (2014)

Molecules such as water, proteins and lipids that are contained in biological tissue absorb mid-infrared (MIR) light, which allows such light to be used in laser surgical treatment. Esters, amides and water exhibit strong absorption bands in the 5–

Externí odkaz: https://doaj.org/article/3021d685fe3c4408a6b25283af950d55

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

Mid-infrared time-stretch spectroscopy

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

Publikováno v: Conference on Lasers and Electro-Optics.

Speeding up mid-infrared spectroscopy is an essential demand in molecular science. We demonstrate a broadband mid-infrared spectroscopy technique, called time-stretch infrared spectroscopy, spanning over 4.4-4.9 gm at a spectral acquisition rate of 8

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fd2206e2e10dd9fb13e11323635ea537
https://doi.org/10.1364/cleo_si.2020.sth3f.1

High-speed quantum cascade detector with frequency response of over 20 GHz

Autor: Tadataka Edamura, Tatsuo Dougakiuchi

Publikováno v: SPIE Future Sensing Technologies.

We present a high-speed quantum cascade detector (QCD), a mid-infrared photodetector using intersubband transition, with a frequency response of over 20 GHz. The frequency response of an uncooled QCD with the response wavelength of around 4.5 μm was

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::960897e7f3cf172ee57c042d6c4e0043
https://doi.org/10.1117/12.2542649