activity
20152025
most citedHighly Sensitive Wavelength-scale Amorphous Hybrid Plasmonic Detectors

29 citations · 52 across the 9 of their papers we have counts for

collaborators

9 papers

physics.optics2025

Waveguide-Plasmon Polariton Quasiparticles with Exceptional Point Characteristics

P. Chang, S. Ramezanpour, A. Helmy

The growing complexity of integrated photonics necessitates compact, low-power devices that transcend traditional, material-centric design approaches. In this study, we harness non…

physics.optics2021

Field canalization using anisotropic 2D plasmonics

Po-Han Chang, Charles Lin, Amr S. Helmy

Optical devices capable of suppressing diffraction nature of light are of great technological importance to many nanophotonic applications. One important technique to achieve diffr…

physics.optics2021★ 1 cited

Integrated Photonic Functions Using Anisotropic 2D Material Structures

Po-Han Chang, Charles Lin, Amr S. Helmy

Plasmonic waveguides based on 2D materials, which enable the formations of guided modes confined around few-layered material, are promising plasmonic platforms for the miniaturizat…

physics.optics2020

Electrically-Reconfigurable Passive and Active Circuits in a Single Plasmonic Architecture

Charles Lin, Pohan Chang, Yiwen Su +1

Guided-wave plasmonic circuits are promising platforms for sensing, interconnection, and quantum applications in the sub-diffraction regime. Nonetheless, the loss-confinement trade…

physics.optics2020★ 8 cited

Supermode hybridization: a material-independent route towards record Schottky detection sensitivity using <0.05 μm3 amorphous absorber volume

Charles Lin, Pohan Chang, Amr S. Helmy

Schottky photodetectors are attractive for CMOS-compatible photonic integrated circuits, but the trade-off between photon absorption and hot carrier emission often compromises the…

physics.optics2019

Ultra-high Purcell factor using long-range modes in asymmetric plasmonic waveguides

YiWen Su, Po-Han Chang, Charles Lin +1

For integrated optical devices, realistic utilization of the superior wave-matter interaction offered by plasmonics is typically impeded by optical losses, which increase rapidly w…