3 papers
physics.optics2024
Talbot effect-based sensor measuring grating period change in subwavelength range
Saumya J. Sarkar, M. Ebrahim-Zadeh, G. K. Samanta
Talbot length, the distance between two consecutive self-image planes along the propagation axis for a periodic diffraction object (grating) illuminated by a plane wave, depends on…
physics.optics2014
Few-cycle, Broadband, Mid-infrared Optical Parametric Oscillator Pumped by a 20-fs Ti:sapphire Laser
Suddapalli Chaitanya Kumar, Adolfo Esteban-Martin, Takuro Ideguchi +5
We report a few-cycle, broadband, singly-resonant optical parametric oscillator (OPO) for the mid-infrared based on MgO-doped periodically-poled LiNbO3 (MgO:PPLN), synchronously pu…
physics.optics2010
Fiber-laser-pumped Ti:sapphire laser
G. K. Samanta, S. Chaitanya Kumar, Kavita Devi +1
We report the first experimental demonstration of efficient and high-power operation of a Ti:sapphire laser pumped by a simple, compact, continuous-wave (cw) fiber-laser-based gree…