36 citations · 87 across the 5 of their papers we have counts for
5 papers
Dual-mode optical fiber-based tweezers for robust trapping and manipulation of absorbing particles in air
Souvik Sil, Tushar Kanti Saha, Avinash Kumar +2
We develop an optical tweezers system using a single dual-mode optical fiber where mesoscopic absorbing particles can be trapped in three dimensions and manipulated employing photo…
Fast Bayesian inference of optical trap stiffness and particle diffusion
Sudipta Bera, Shuvojit Paul, Rajesh Singh +4
Bayesian inference provides a principled way of estimating the parameters of a stochastic process that is observed discretely in time. The overdamped Brownian motion of a particle…
Simultaneous measurement of mass and rotation of trapped absorbing particles in air
Sudipta K. Bera, Avinash Kumar, Souvik Sil +3
We trap absorbing micro-particles in air by photophoretic forces generated using a single loosely focused Gaussian trapping beam. We measure a component of the radial Brownian moti…
Simultaneous detection of rotational and translational motion in optical tweezers by measurement of backscattered intensity
Basudev Roy, Sudipta K. Bera, Ayan Banerjee
We describe a simple yet powerful technique of simultaneously measuring both translational and rotational motion of mesoscopic particles in optical tweezers by measuring the backsc…
Mueller matrix polarimetry of plasmon resonant silver nano-rods: biomedical prospects
Sayantan Ghosh, Jalpa Soni, Sudipta K. Bera +2
Fundamental understanding of the light-matter interaction in the context of nano-particles is immensely bene- fited by the study of geometry dependent tunable Localized Surface Pla…