25 August 2017 Optical trapping with femtosecond laser pulses
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Abstract
Laser trapping of 100nm diameter polystyrene bead under high repetition rate ultrafast pulsed excitation is studied theoretically as well as experimentally. In our theoretical analysis, we explore the role of optical Kerr effect at 50mW average power under pulsed excitation. In our experiment, we use a CMOS camera to record two-photon fluorescence signal from the trapped particle which decays with time due to photo-bleaching.
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Anita Devi, Shaina Dhamija, Arijit K. De, "Optical trapping with femtosecond laser pulses", Proc. SPIE 10347, Optical Trapping and Optical Micromanipulation XIV, 1034737 (25 August 2017); doi: 10.1117/12.2273839; https://doi.org/10.1117/12.2273839
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