Photothermal spectroscopy using diffraction grating nanochannels for detection in nano space

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

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 conference › Paper › peer-review

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 language	English
Pages	1274-1276
Number of pages	3
Publication status	Published - 2006
Externally published	Yes
Event	10th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2006 - Tokyo, Japan Duration: 2006 Nov 5 → 2006 Nov 9

Other

Other	10th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2006
Country	Japan
City	Tokyo
Period	06/11/5 → 06/11/9

Keywords

Diffraction grating
Nano channel
Photothermal detection

ASJC Scopus subject areas

Chemical Engineering (miscellaneous)
Bioengineering

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Photothermal spectroscopy using diffraction grating nanochannels for detection in nano space. / Oda, Kotaro; Mawatari, Kazuma; Asada, Sho; Hibara, Akihide; Kitamori, Takehiko.

2006. 1274-1276 Paper presented at 10th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2006, Tokyo, Japan.

Research output: Contribution to conference › Paper › peer-review

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title = "Photothermal spectroscopy using diffraction grating nanochannels for detection in nano space",

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.",

keywords = "Diffraction grating, Nano channel, Photothermal detection",

author = "Kotaro Oda and Kazuma Mawatari and Sho Asada and Akihide Hibara and Takehiko Kitamori",

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language = "English",

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AU - Oda, Kotaro

AU - Mawatari, Kazuma

AU - Asada, Sho

AU - Hibara, Akihide

AU - Kitamori, Takehiko

PY - 2006

Y1 - 2006

N2 - 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.

AB - 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.

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KW - Nano channel

KW - Photothermal detection

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