4 papers
Cryogenic UV detection using stress-engineered zero-bias ZnO-thin film based Piezo-Photonic detector
P. Sau, N. Hancock, I. Tzoka +6
We demonstrate a zero-bias ultraviolet (UV) detector using zinc oxide (ZnO) thin films as the active semiconductor layer, specifically for application in cryogenic conditions. The…
Temperature Dependent Optical Response Of High- Tc Yba2cu3o7-δ (Ybco) Thin Films
Vivek Khichar, V. A. Chirayath, Jonathan Asaadi +5
We report on the temperature-dependent optical response of thin films of YBa2Cu3O7-δ (YBCO) in the visible spectral range under cryogenic conditions. Specifically, we observe an in…
Design and fabrication guide for a new metamaterial as an absorber of visible light with exceptionally high absorption efficiency
Vivek Khichar, Nader Hozhabri, Ali R. Koymen
We present a guide for the design and fabrication of a CMOS-compatible metamaterial microstructure as an absorber of visible light with exceptionally high absorption efficiency (~…
Controlling electrical conduction through noble metal thin films by surface plasmon resonance
Suresh C Sharma, Vivek Khichar, Hussein Akafzade +1
The collective oscillations of surface charges (surface plasmons) induced by light-matter interactions were predicted in the 1950s to influence electrical conduction in 2D noble me…