28 citations · 72 across the 8 of their papers we have counts for
4 papers · 1 filter
Improving Dynamic Range of Speckle Correlation based Optical Lever by spatial multiplexing
Vijayakumar Anand, Shanti Bhattacharya, Joseph Rosen
Speckle correlation based optical levers SC OptLev possess attractive characteristics suitable for sensing small changes in the angular orientations of surfaces. In this study, we…
SLM aided noninvasive imaging through thin scattering layers
Saswata Mukherjee, A. Vijayakumar, Joseph Rosen
We propose and demonstrate a new imaging technique to noninvasively see through scattering layers with the aid of a spatial light modulator (SLM). A relay system projects the incoh…
Implementation of a speckle correlation based optical lever (SC-OptLev) with extended dynamic range
A. Vijayakumar, D. Jayavel, M. Muthaiah +2
A speckle correlation based optical lever (SC-OptLev) is constructed for the measurement of small changes in the angle of orientation of a surface. The dynamic range of SC-OptLev i…
Binary square axicon with chiral focusing properties for optical trapping
Balasubramani Vinoth, Anand Vijayakumar, Mani Ratnam Rai +4
We introduce a novel phase-only diffractive optical element called chiral binary square axicon (CBSA). The CBSA is designed by linearly rotating the square half-period zones of the…