Photothermal spectroscopy using diffraction grating nanochannels for detection in nano space

Kotaro Oda, Kazuma Mawatari, Sho Asada, Akihide Hibara, Takehiko Kitamori

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

We report a new photothermal spectroscopy using diffraction grating nano channels for detection in nano space. Photothermal effect was detected as intensity change of a diffracted probe beam due to refractive index change of heated sample solution inside nanochannels. The concept was verified by nanochannels of ∼nm width × ∼nm depth. The LOD (Limit of Detection) for Sunset Yellow solutions was 1.0×10-5 Abs. Further development to get higher sensitivity utilizing "Alternate diffraction grating method" is now investigated.

Original languageEnglish
Pages1274-1276
Number of pages3
Publication statusPublished - 2006 Jan 1
Externally publishedYes
Event10th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2006 - Tokyo, Japan
Duration: 2006 Nov 52006 Nov 9

Other

Other10th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2006
CountryJapan
CityTokyo
Period06/11/506/11/9

Keywords

  • Diffraction grating
  • Nano channel
  • Photothermal detection

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Bioengineering

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  • Cite this

    Oda, K., Mawatari, K., Asada, S., Hibara, A., & Kitamori, T. (2006). Photothermal spectroscopy using diffraction grating nanochannels for detection in nano space. 1274-1276. Paper presented at 10th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2006, Tokyo, Japan.