4 papers
Efficient direct loading of the green MOT of Yb with low green laser power
Thilagaraj Ravi, Rajnandan Choudhury Das, Heramb Vivek Bhusane +2
We report the direct loading of Yb atoms in the magneto-optical trap (MOT) using the intercombination narrow optical transition 6s S 6s6p P at 556…
Anisotropic magneto-photothermal voltage in Sb2Te3 topological insulator thin films
Subhadip Manna, Sambhu G Nath, Samrat Roy +8
We studied longitudinal and Hall photothermal voltages under a planar magnetic field scan in epitaxial thin films of the Topological Insulator (TI) Sb2Te3, grown using pulsed laser…
Controlling helicity-dependent photocurrent in polycrystalline SbTeSe topological insulator thin films at ambient temperature through wave-vector of and photothermal gradient due to polarized light
Samrat Roy, Subhadip Manna, Chiranjib Mitra +1
Optical control of helicity-dependent photocurrent in topological insulator SbTeSe has been studied at room temperature on dominantly c-axis oriented granular polycrystalli…
Nonlinear optical responses of all-inorganic lead halide perovskite nanostructures by time-resolved beam-deflection technique
Samrat Roy, Arnab Mandal, Akshay Raj R. +2
We have investigated nonlinear refraction in all-inorganic halide perovskites, the CsPbBr and CsPbBrI nanosheet and quantum dot colloids in toluene, by a novel…