1 citations · 2 across the 6 of their papers we have counts for
6 papers
Extrinsic Spin Splitter Currents in Altermagnets
Sanjay Sarkar, Sayan Sarkar, Amit Agarwal
Altermagnets exhibit momentum-dependent spin splitting despite having zero net magnetization. This enables a spin-splitter effect in which an external electric field generates tran…
Band geometric transverse current driven by inhomogeneous AC electric field
M. Maneesh Kumar, Sanjay Sarkar, Amit Agarwal
We develop a semiclassical theory for electron wavepacket dynamics in the presence of an inhomogeneous AC electric field. While static electric-field gradients are known to generat…
Band Geometry Induced Third-Harmonic Generation
Sanjay Sarkar, Debottam Mandal, Amit Agarwal
Third-harmonic generation (THG) is a key nonlinear optical process for ultrafast imaging, terahertz (THz) signal generation, and symmetry-sensitive probes, often dominating in cent…
Third-order rectification in centrosymmetric metals
Sanjay Sarkar, Amit Agarwal
Rectification, the conversion of AC fields into DC currents, is crucial for optoelectronic applications such as energy harvesting and wireless communication. However, it is convent…
Band geometry induced electro-optic effect and polarization rotation
M. Maneesh Kumar, Sanjay Sarkar, Amit Agarwal
Electric field-induced modulation of the optical properties is crucial for amplitude and phase modulators used in photonic devices. Here, we present a comprehensive study of the ba…
Quantum Geometry Induced Third Order Nonlinear Transport Responses
Debottam Mandal, Sanjay Sarkar, Kamal Das +1
Nonlinear transport phenomena offer an exciting probe into the band geometry and symmetry properties of a system. While most studies on nonlinear transport have looked at second-or…