1 citations · 1 across the 7 of their papers we have counts for
7 papers
van der Waals Nanogap Loading of a \ce{TiO2} Nanobar Metasurface for Dual-Channel Fano Refractive Index Sensing
Shoumik Debnath, Sudipta Saha
Filling the gap of a \ce{TiO2} nanobar-pair metasurface with -\ce{MoO3}, a biaxial orthorhombic crystal, produces two high- Fano resonances with unequal quality factors: $Q_\…
Polarization-Selective Near-Perfect Absorption via Mie-Type Resonance in van der Waals Anisotropic ReS/-MoO/Au Heterostructure
Shoumik Debnath, Sudipta Saha
We investigate polarization-selective absorption in a visible-wavelength heterostructure consisting of a ReS stripe grating, an -MoO spacer, and an Au back-reflector usi…
Polarization-Multiplexed Spatial Filtering in a Symmetric \ce{TiO2} Metasurface with an Anisotropic van der Waals Gap Fill
Shoumik Debnath, Sudipta Saha
Finite-difference time-domain simulations of a symmetric \ce{TiO2} nanobar-pair metasurface with a 60~nm -\ce{MoO3} gap fill give two Fano resonances that are selected by the in…
Single-Device VOC Fingerprinting via Polarization-Selective Anisotropic BeS-Clad Silicon Microring Resonator
Sudipta Saha, Shoumik Debnath, Md Kawsar Alam
A silicon microring resonator with an anisotropic beryllium sulfide (BeS) cladding is proposed for polarization-selective detection of exhaled-breath volatile organic compound biom…
Inverse Design Validated Optimization of Lead-Free CsCuCl Visible-Light Microring Resonators Using a Coupled DFT-FDTD Framework
Shoumik Debnath, Sudipta Saha
Microring resonators are indispensable for wavelength filtering, sensing, and on-chip signal routing in photonic integrated circuits, yet visible-wavelength implementations using e…
Composition-Dependent Plasmon-Enhanced Emission in Lead-Free CsCuX Halides: A DFT--FDTD Study
Shoumik Debnath, Sudipta Saha, Khondokar Zahin +2
Lead-free CsCuX (X = Cl, Br, I) halides exhibit high photoluminescence quantum yields and excellent ambient stability, yet light-emitting devices based on these materia…
An Integrated DFT-FDTD Design of Plasmon-Enhanced Lead-Free Perovskite LEDs
Shoumik Debnath, Sudipta Saha, Khondokar Zahin +2
CsSnGeI as lead-free perovskites are promising for next generation NIR emitting perovskite LEDs due to their tunable bandgaps and stability. However, they suffer fr…