Photothermal laser material interactions - From the sledgehammer to nano-GPS

Jonathan Hobley, David Paramelle, Paul Free, David G. Fernig, Shinji Kajimoto, Sergey Gorelik

研究成果: Conference contribution

抄録

In this chapter we will summarize the main photothermal, photoacoustic and photomechanical effects of coupling a laser beam into a material from the absorption of the laser light to the deactivation of vibrationally and electronically excited states. Some methods to estimate the resulting temperature rise will be discussed and the resulting pressure increase in the heated area explained. The relaxation of both pressure and thermal transients will be explored and several methods described, such as pump-probe spectroscopy and imaging techniques, which can be used to investigate the dynamics of the relaxation pathways. We will explain how photothermal effects can manifest as optical effects. Finally, we will describe how we can harness photothermally induced optical changes to provide a new methodology in bioimaging involving indestructible 5-10 nm noble metal nanoparticles that can be observed using photothermal tracking microscopy for unprecedented periods of time in live cell imaging.

本文言語English
ホスト出版物のタイトルAdvances in Bio-Imaging
ホスト出版物のサブタイトルFrom Physics to Signal Understanding Issues: State-of-the-Art and Challenges
編集者Nicolas Lomenie, Daniel Racoceanu, Alexandre Gouaillard
ページ85-111
ページ数27
DOI
出版ステータスPublished - 2012 2 1
外部発表はい

出版物シリーズ

名前Advances in Intelligent and Soft Computing
120
ISSN(印刷版)1867-5662

ASJC Scopus subject areas

  • コンピュータ サイエンス(全般)

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