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[[Vol. 55]A New On-chip Sensor for Infrared Spectrography_ WPI-MANA.pdf](https://mdr.nims.go.jp/filesets/b7950442-18d8-4a89-9d58-07b9ed6998e4/download)

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International Center for Materials Nanoarchitectonics (WPI-MANA)

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[[Research Highlights Vol.55] A New On-chip Sensor for Infrared Spectrography](https://mdr.nims.go.jp/datasets/3e3288a5-eb9e-4fa0-a37c-7ee03e0bc7dd)

## Fulltext

2022/03/31 16:25 A New On-chip Sensor for Infrared Spectrography| MANAhttps://www.nims.go.jp/mana/research/highlights/vol55.html 1/2Previous  Index  NextResearch Highlights[Vol. 55]A New On-chip Sensor for Infrared Spectrography14 Nov, 2019A team at MANA has created a new type of multi-wavelength infrared sensor capable ofdetecting thermal radiation of specific wavelengths. It could have a range ofapplications, including temperature/materials-specific imaging and remote sensing ofair pollution.Infrared spectroscopy is a powerful technique for identifying chemicals by analyzing theirvibrational absorptions, as well as for characterizing the optical properties of narrow bandgapsemiconductors, quantum-well emitters and thermal absorbers.Every material has its own characteristic emission spectrum. Gases, for example, have sharpemission lines, and a spectrometer can identify specific types of gas molecules. However, mostinfrared sensors do not have wavelength resolution and detect the entire integrated intensity,limiting the information that can be derived from a material.MANA’s new sensor boasts an ultra-narrowband resolution and a high directivity, so it can sensegases and measure the temperatures of objects without calibrating their emission intensity andtemperature beforehand.It can detect thermal radiation at a specific wavelength and restrict its incident direction. The teampatterned periodic electromagnetic nano-absorbers on a metal surface, so that incident thermalradiation diffracts and propagates parallel to the absorbers’ surface. The diffracted wave ishybridized with the surface plasmon polariton on the periodic metal surface and generates heathttps://www.nims.go.jp/mana/research/highlights/vol54.htmlhttps://www.nims.go.jp/mana/research/highlights/index.htmlhttps://www.nims.go.jp/mana/research/highlights/vol56.html2022/03/31 16:25 A New On-chip Sensor for Infrared Spectrography| MANAhttps://www.nims.go.jp/mana/research/highlights/vol55.html 2/2signal while it propagates in a very narrow window in angle and wavelength for the incidentthermal radiation.The result is the world’s highest-performance such sensor, with a wavelength resolution as high as50 nm and a directivity better than +-1 degree, with multiband infrared sensors mounted on asingle chip.This could lead to a range of new products, including miniature spectroscopic infrared devices fortrue-temperature pyrometry, gas imaging, position and motion sensing with high angularresolution, materials-specific imaging, and environmental sensing.This research was carried out by Tadaaki Nagao (MANA Principal Investigator, Group Leader ofPhotonics Nano-Engineering Group, MANA, NIMS) and his collaborators.Reference”An On‐Chip Quad‐Wavelength Pyroelectric Sensor for Spectroscopic Infrared Sensingy"Thang Duy Dao, Satoshi Ishii, Anh Tung Doan, Yoshiki Wada, Akihiko Ohi, TadaakiNagao and Toshihide NabatameJournal : Adv. Sci. 6 (2019) 1900579.DOI : 10.1002/advs.201900579(Press release on this research)“A Spectroscopic Infrared Sensor with World-Class Wavelength Resolution”https://www.nims.go.jp/mana/news_room/press/2019082601.html(News Article on this research)“Tadaaki Nagao, MANA Principal Investigator Appeared in Advanced Science News”https://www.nims.go.jp/mana/news_room/news/2019100201.htmlAffiliationsInternational Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for MaterialsScience (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, JapanContact informationInternational Center for Materials Nanoarchitectonics(WPI-MANA)National Institute for Materials Science1-1 Namiki, Tsukuba, Ibaraki 305-0044 JapanPhone: +81-29-860-4710E-mail: mana-pr[AT]ml.nims.go.jphttps://samurai.nims.go.jp/profiles/nagao_tadaaki?locale=enhttps://samurai.nims.go.jp/profiles/sishii?locale=enhttps://samurai.nims.go.jp/profiles/nagao_tadaaki?locale=enhttps://samurai.nims.go.jp/profiles/nabatame_toshihide?locale=enhttps://onlinelibrary.wiley.com/doi/full/10.1002/advs.201900579https://www.nims.go.jp/mana/news_room/press/2019082601.htmlhttps://www.nims.go.jp/mana/news_room/news/2019100201.html