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20222025
most citedA universal and stable metasurface for photonic quasi bound state in continuum coupled with two dimensional semiconductors

5 citations · 5 across the 9 of their papers we have counts for

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physics.optics2025

From Atomic Defects to Integrated Photonics: A Perspective on Solid-State Quantum Light Sources

Anuj Kumar Singh, Parul Sharma, Kishor Kumar Mandal +2

Single-photon emitters (SPEs) constitute a foundational resource for quantum technologies, including secure communication, photonic quantum computing, and emerging quantum network…

physics.optics2025

Protected Ion Beam Fabrication of Two-Dimensional Transition Metal Dichalcogenides based Photonic Devices

Lekshmi Eswaramoorthy, Parul Sharma, Brijesh Kumar +4

Two-dimensional (2D) transition metal dichalcogenides are pivotal for next-generation photonic devices due to their exceptional optical properties and strong light-matter interacti…

physics.optics2025

Maximal optical chirality via mode coupling in bilayer metasurfaces

Brijesh Kumar, Ivan Toftul, Anshuman Kumar +2

Recent advances in the physics of resonant optical metasurfaces allowed to realize the so-called maximum chirality of planar structures by engineering their geometric parameters. H…

physics.optics2025

Sensing with Broken Symmetry: Revisiting Bound States in the Continuum

Brijesh Kumar, Elizaveta Tsiplakova, Samuel John +6

Metasurface with bound states in the continuum (BICs) offer exceptional potential for optical sensing due to their inherently high quality (Q) factors. However, the detection of sy…

physics.optics2024

Focused ion beam polishing based optimization of high-Q silica microdisk resonators

Lekshmi Eswaramoorthy, Parul Sharma, Brijesh Kumar +5

Whispering gallery mode (WGM) microdisk resonators are promising optical devices that confine light efficiently and enable enhanced nonlinear optical effects. This work presents a…

physics.optics2024

Twisted hyperbolic van der Waals crystals for full Stokes mid-infrared polarization detection

Nihar Ranjan Sahoo, S. S. Jatin Prasath, Brijesh Kumar +1

Investigating the polarization properties of light in the mid-infrared (mid-IR) spectrum is crucial for molecular sensing, biomedical diagnostics, and IR imaging system technologie…

physics.optics2023

Exceptional point sensing via energy loss profile in a non-Hermitian system

Parul Sharma, Brijesh Kumar, Nihar Ranjan Sahoo +1

The heightened sensitivity observed in non-Hermitian systems at exceptional points (EPs) has garnered significant attention. Typical EP sensor implementations rely on precise measu…

physics.optics2022★ 5 cited

A universal and stable metasurface for photonic quasi bound state in continuum coupled with two dimensional semiconductors

Brijesh Kumar, Anuj Kumar Singh, Kishor K Mandal +3

Strong coupling of excitons to optical cavity modes is of immense importance to understanding the fundamental physics of quantum electrodynamics at the nanoscale as well as for pra…