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Development of differential interference contrast thermal lens microscope
Conference paper

Development of differential interference contrast thermal lens microscope

H. Shimizu, K. Mawatari and T. Kitamori
Proceedings of the 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007, pp.458-460
2007

Abstract

Differential interference contrast Gold nanoparticle Photothermal Chemical Engineering (miscellaneous) Bioengineering
We present a new background-free photothermal spectroscopy based on thermal lens microscope (TLM) to realize single molecule counting. For single molecule counting, approximately 20 times increase of sensitivity is necessary compared with conventional TLMs. For this purpose, a new differential interference contrast thermal lens microscope (DIC-TLM) was developed. The basic principle was verified, and sensitivity was proved to be 5 times higher than conventional TLMs. We believe single molecule counting will be possible with some improvements.

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