3 papers
physics.ins-det2026
Hot-electron bolometric mixer with negative differential resistance
Chang Yoo, Akim A. Babenko, Boris S. Karasik
We demonstrate that the conversion gain of a superconducting hot-electron bolometer (HEB) mixer can be increased by biasing the device within the negative differential resistance (…
cond-mat.supr-con2026
Lumped-Element Model of THz HEB Mixer Based on Sputtered MgB2 Thin Film
Changyun Yoo, Changsub Kim, Daniel P. Cunnane +1
We present a comprehensive analysis and experimental study of THz hot-electron bolometer (HEB) mixers made from 40-nm-thick sputtered magnesium diboride (MgB2) thin films on high-r…
physics.ins-det2025
THz Metal-Mesh Bandpass Filters with Diamond-shaped Apertures for Sensitive THz Receivers
Changyun Yoo, Jeffrey L. Hesler, Boris S. Karasik
We present high-performance terahertz (THz) metal-mesh bandpass filters developed to mitigate direct detection effects in sensitive THz receivers based on superconducting hot-elect…