Simultaneous detection of two-photon fluorescence and backscatter in laser trapping of dielectric nanoparticles

A Devi, AK De - Journal of Nanophotonics, 2019 - spiedigitallibrary.org
In recent past, high-repetition-rate, ultrafast pulse excitation has been identified to play an
important role in stable trapping of dielectric nanoparticles assisted by optical nonlinearity …

Optical trapping dynamics probed by real-time back-scatter imaging

A Devi, AK De - European Conference on Biomedical Optics, 2019 - opg.optica.org
The illusive nature of optical trapping dynamics under high repetition-rate femtosecond
pulsed excitation has recently been theoretically explained based on nonlinear nature of …