Two-photon single-beam particle trapping of active microspheres

Dru Morrish; Xiaosong Gan; Min Gu

doi:10.1117/12.555563

18 October 2004 Two-photon single-beam particle trapping of active microspheres

Dru Morrish, Xiaosong Gan, Min Gu

Author Affiliations +

Proceedings Volume 5514, Optical Trapping and Optical Micromanipulation; (2004) https://doi.org/10.1117/12.555563
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

In this paper, we have demonstrated the measurement of the morphology-dependent resonance (MDR) within a laser trapped microsphere excited under two-photon excitation. Both trapping and two-photon excitation are achieved by a single femtosecond pulsed laser beam simultaneously. MDR induced by two-photon excitation has also shown to overcome difficulties in separation of excitation and resonant wavelengths and the inability to confine excitation illumination precisely3. A spectrally resolved image demonstrates that this technique provides an alternative imaging mechanism for near-field imaging and mapping surface tomography.

Citation Download Citation

Dru Morrish, Xiaosong Gan, and Min Gu "Two-photon single-beam particle trapping of active microspheres", Proc. SPIE 5514, Optical Trapping and Optical Micromanipulation, (18 October 2004); https://doi.org/10.1117/12.555563

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