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Experimental Comparison of Conventional and Femtosecond Optical Tweezers (JW1A.153)

Presenter: Ajitesh Singh, Indian Institute of Technology Kanpur

Systematic study of conventional and femtosecond optical tweezers demonstrates an interplay of thermal and optical nonlinearity due to tight focusing. Specifically, Brownian motion of the 250nm radius trapped bead is measured using a quadrant photodiode.

Authors:Ajitesh Singh, Indian Institute of Technology Kanpur / Soumendra Bandyopadhyay, Indian Institute of Technology Kanpur / Krishna Singh, Indian Institute of Technology Kanpur / Deepak Kumar, Indian Institute of Technology Kanpur / Debabrata Goswami, Indian Institute of Technology Kanpur


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