Scanning particle trapped optical microscopy based on two-photon-induced morphology-dependent resonance in a trapped microsphere

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Title: Scanning particle trapped optical microscopy based on two-photon-induced morphology-dependent resonance in a trapped microsphere
Author(s): Morrish, Dru; Gan, Xiaosong; Gu, Min
Abstract: We report on scanning particle trapped optical microscopy based on two-photon-induced morphology-dependent resonance (MDR) in a trapped microsphere. In this imaging mode, a femtosecond pulsed laser is adopted for simultaneous laser trapping and two-photon excitation. Due to the localized excitation, MDR is significantly enhanced. As a result, an image contrast enhancement of 9.3% is achieved by the spectral detection of a single on-resonance MDR mode compared with that obtained by the off-resonance MDR mode without compromise in transverse resolution.
Publication type: Journal article
Research centre: Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Micro-Photonics
Source: Applied Physics Letters, Vol. 88, no. 14 (2006), p. 1-3
Publication year: 2006
Keyword(s): Optical microscopy; Radiation pressure; Two-photon processes; High-speed optical techniques; Optical images
Publisher: American Institute of Physics
ISSN: 0003-6951
Publisher URL: http://dx.doi.org/10.1063/1.2186076
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