43 citations · 151 across the 19 of their papers we have counts for
9 papers · 1 filter
Roadmap for Optical Tweezers
Giovanni Volpe, Onofrio M. Maragò, Halina Rubinzstein-Dunlop +80
Optical tweezers are tools made of light that enable contactless pushing, trapping, and manipulation of objects ranging from atoms to space light sails. Since the pioneering work b…
Simultaneous optical trapping and magnetic micromanipulation of ferromagnetic iron-doped upconversion microparticles in six degrees of freedom
Gokul Nalupurackal, Gunaseelan M, Muruga Lokesh +9
Optical trapping of magnetic Fe-oxide particles is notoriously difficult due to their high refractive indices, not to mention high absorptivity at the trapping infra-red wavelength…
Detection of self-generated nanowaves on the interface of an evaporating sessile water droplet
Dhanush Bhatt, Rahul Vaippully, Bhavesh Kharbanda +4
Evaporating sessile droplets have been known to exhibit oscillations on the air-liquid interface. These are generally over millimeter scales. Using a novel approach, we are able to…
Study of adhesivity of surfaces using rotational optical tweezers
Rahul Vaipully, Dhanush Bhatt, Anand Dev Ranjan +1
Optical tweezers are powerful tools for high resolution study of surface properties. Such experiments are traditionally performed by studying the active or the brownian fluctuation…
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…
Enhanced topological phase and spin Hall shifts in an optical trap
Basudev Roy, Nirmalya Ghosh, Subhasish Dutta Gupta +2
The spin orbit interaction (SOI) of light has been in the focus in recent times because of fundamental consequences and potential applications in diverse systems ranging from inhom…
Controlled transportation of mesoscopic particles by enhanced spin orbit interaction of light in an optical trap
Basudev Roy, Nirmalya Ghosh, Subhasish Dutta Gupta +3
We study the effects of the spin orbit interaction (SOI) of light in an optical trap and show that the propagation of the tightly focused trapping beam in a stratified medium can l…
Probing the dynamics of an optically trapped particle by phase sensitive back focal plane interferometry
Basudev Roy, Sambit Bikas Pal, Arijit Haldar +3
The dynamics of an optically trapped particle are often determined by measuring intensity shifts of the back-scattered light from the particle using position sensitive detectors. W…
Self assembly of microparticles in stable ring structures in an optical trap
Arijit Haldar, Sambit Bikas Pal, Basudev Roy +2
Micro-particle self assembly under the influence of optical forces produced by higher order optical beams or by projection of a hologram into the trapping volume is well known. In…