74 citations · 222 across the 21 of their papers we have counts for
21 papers
Hybrid Ferromagnet-SNSPDs: Single photon induced order-to-disorder transition in ferromagnets coupled to thin film superconductors
Leif Bauer, Daien He, Sathwik Bharadwaj +1
The development of midwave and longwave infrared single photon detectors is crucial for their emerging applications in spectroscopy, remote sensing, exoplanet detection, and free s…
Observation of Crystalline Nonlocal Volume Plasmon Waves
Sathwik Bharadwaj, Makoto Schreiber, Jungho Mun +6
In plasmonics, nonlocal effects arise when the material response to optical excitations is strongly dependent on the spatial correlations of the excitation. It is well known that a…
Unified Theory of Dark Count Rate and System Detection Efficiency for NbN, WSi Based Superconducting Single Photon Detectors
Daien He, Leif Bauer, Sathwik Bharadwaj +1
Predicting the behavior of superconducting nanowire single photon detectors (SNSPDs) is important as their use becomes more widespread in fields ranging from quantum computing to q…
Type-1.5 SNSPD: Interacting vortex theory of two bandgap superconducting single photon detectors
Leif Bauer, Daien He, Sathwik Bharadwaj +3
Photon detectors based on type-2 superconductors have found widespread applications from on-chip quantum computing to quantum remote sensing. Here, we develop the theory for a new…
Quantum Theory of Optical Spin Texture in Chiral Tellurium Lattice
Pronoy Das, Sathwik Bharadwaj, Jungho Mun +3
The absence of inversion symmetry in chiral tellurium (Te) creates exotic spin textures within its electron waves. However, understanding textured optical waves within Te remains a…
Roadmap for Photonics with 2D Materials
F. Javier García de Abajo, D. N. Basov, Frank H. L. Koppens +145
Triggered by the development of exfoliation and the identification of a wide range of extraordinary physical properties in self-standing films consisting of one or few atomic layer…
Visualization of atomistic optical waves in crystals
Jungho Mun, Sathwik Bharadwaj, Zubin Jacob
The refractive index of a matter is foundational to quantify the light-matter interaction of the medium. However, the classical description of refractive index is based on macrosco…
Unraveling Optical Polarization at Deep Microscopic Scales in Crystalline Materials
Sathwik Bharadwaj, Zubin Jacob
Nanophotonics, the study of light-matter interaction at scales smaller than the wavelength of radiation, has widespread applications in plasmonic waveguiding, topological photonic…
Computational Electromagnetics Meets Spin Qubits: Controlling Noise Effects in Quantum Sensing and Computing
Wenbo Sun, Sathwik Bharadwaj, Runwei Zhou +2
Solid-state spin qubits have emerged as promising platforms for quantum information. Despite extensive efforts in controlling noise in spin qubit quantum applications, one importan…
Quantum theory of orbital angular momentum in spatiotemporal optical vortices
Pronoy Das, Sathwik Bharadwaj, Zubin Jacob
Spatiotemporal Optical Vortices (STOVs) are structured electromagnetic fields propagating in free space with phase singularities in the space-time domain. Depending on the tilt of…
Optical N-plasmon: Topological hydrodynamic excitations in Graphene from repulsive Hall viscosity
Wenbo Sun, Todd Van Mechelen, Sathwik Bharadwaj +2
Edge states occurring in Chern and quantum spin-Hall phases are signatures of the topological electronic band structure in two-dimensional (2D) materials. Recently, a new topologic…
First-Principles Study of Large Gyrotropy in MnBi for Infrared Thermal Photonics
Md Roknuzzaman, Sathwik Bharadwaj, Yifan Wang +4
Nonreciprocal gyrotropic materials have attracted significant interest recently in material physics, nanophotonics, and topological physics. Most of the well-known nonreciprocal ma…
Limits to Quantum Gate Fidelity from Near-Field Thermal and Vacuum Fluctuations
Wenbo Sun, Sathwik Bharadwaj, Li-Ping Yang +5
High-fidelity quantum gate operations are essential for achieving scalable quantum circuits. In spin qubit quantum computing systems, metallic gates and antennas which are necessar…
Observation of Non-Vanishing Optical Helicity in Thermal Radiation from Symmetry-Broken Metasurfaces
Xueji Wang, Tyler Sentz, Sathwik Bharadwaj +5
Spinning thermal radiation is a unique phenomenon observed in condensed astronomical objects including the Wolf-Rayet star EZ-CMa and the red degenerate star G99-47, due to existen…
Pico-photonics: Anomalous Atomistic Waves in Silicon
Sathwik Bharadwaj, Todd Van Mechelen, Zubin Jacob
The concept of photonic frequency - momentum dispersion has been extensively studied in artificial dielectric structures such as photonic crystals and metamaterials. Ho…
Optical -insulators: topological obstructions in the atomistic susceptibility tensor
Todd Van Mechelen, Robert-Jan Slager, Sathwik Bharadwaj +1
A powerful result of topological band theory is that nontrivial phases manifest obstructions to constructing localized Wannier functions. In Chern insulators, it is impossible to c…
Lateral transition metal dichalcogenide heterostructures for high efficiency thermoelectric devices
Sathwik Bharadwaj, Ashwin Ramasubramaniam, L. R. Ram-Mohan
Increasing demands for renewable sources of energy has been a major driving force for developing efficient thermoelectric materials. Two-dimensional (2D) transition-metal dichalcog…
Scalable first-principles-informed quantum transport theory in two-dimensional materials
Sathwik Bharadwaj, Ashwin Ramasubramaniam, L. R. Ram-Mohan
Accurate determination of carrier transport properties in two-dimensional (2D) materials is critical for designing high-performance nano-electronic devices and quantum information…
Tuning spatial entanglement in interacting few-electron quantum dots
Dung. N. Pham, Sathwik Bharadwaj, L. R. Ram-Mohan
Confined geometries such as semiconductor quantum dots are promising candidates for fabricating quantum computing devices. When several quantum dots are in proximity, spatial corre…
Electromagnetic calculations for multiscale and multiphysics simulations: a new perspective
Dung N. Pham, Sathwik Bharadwaj, L. R. Ram-Mohan
Present day electromagnetic field calculations have limitations that are due to techniques employing edge-based discretization methods. While these vector finite element methods so…
Exploration of The Duality Between Generalized Geometry and Extraordinary Magnetoresistance
Sathwik Bharadwaj, L. R. Ram-Mohan, Leo Rodriguez +1
We outline the duality between the extraordinary magnetoresistance (EMR), observed in semiconductor-metal hybrids, and non-symmetric gravity coupled to a diffusive gauge fie…