| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 28321 | Journal of Photochemistry and Photobiology A: Chemistry | 2006 | 6 Pages |
Abstract
Near-infrared (NIR) femtosecond laser microscope with Cr:Forsterite laser at ca. 1.26 μm output wavelength was constructed and applied to two-, three- and four-photon imaging of gold nanoparticle and some organic micro crystals. The ultrafast pulse duration of 35 fs after passing through the objectives easily induced higher-order multiphoton absorption. The size of the laser focal spot and the resolution along the optical axis were discussed by comparing the present higher-order multiphoton imaging and two-photon induced processes.
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Authors
Hirohisa Matsuda, Syoji Ito, Yutaka Nagasawa, Tsuyoshi Asahi, Hiroshi Masuhara, Seiya Kobatake, Masahiro Irie, Hiroshi Miyasaka,