15 citations · 35 across the 5 of their papers we have counts for
5 papers
Optical Damage Threshold and THz Generation Efficiency of (Fe,CoFeB)/(Ta,Pt) Spintronic Emitters
Sandeep Kumar, Anand Nivedan, Arvind Singh +5
THz pulses are generated from femtosecond pulse-excited ferromagnetic/nonmagnetic spintronic heterostructures via inverse spin Hall effect. The contribution from ultrafast demagnet…
Sub-bandgap activated charges transfer in a graphene-MoS2-graphene heterostructure
Sunil Kumar, Arvind Singh, Anand Nivedan +7
Monolayers of transition metal dichalcogenides are semiconducting materials which offer many prospects in optoelectronics. A monolayer of molybdenum disulfide (MoS2) has a direct b…
Enhancement in optically induced ultrafast THz response of MoSe2MoS2 heterobilayer
Sunil Kumar, Arvind Singh, Sandeep Kumar +7
THz conductivity of large area MoS2 and MoSe2 monolayers as well as their vertical heterostructure, MoSe2MoS2 is measured in the 0.3-5 THz frequency range. Compared to the monolaye…
Study of the photo-switching of a Fe(II) chiral complex through linear and nonlinear ultrafast spectroscopy
Amine Hamouda, Fredéric Dutin, Jerome Degert +4
Photo-switching the physical properties of molecular systems opens large possibilities for driving materials far from equilibrium toward new states. Moreover, ultra-short pulses of…
Direct observation of low frequency confined acoustic phonons in silver nanoparticles: Terahertz time domain spectroscopy
Sunil Kumar, N. Kamaraju, B. Karthikeyan +3
Terahertz time domain spectroscopy has been used to study low frequency confined acoustic phonons of silver nanoparticles embedded in poly(vinyl alcohol) matrix in the spectral ran…