As the communication industry is hurtling towards greater bandwidth and higher data-rate to
satisfy the ever-increasing data demand; terahertz range of frequencies from 100 GHz to 3 …

We present here an innovative photon detector based on the proximity junction array device
(PAD) working at long wavelengths. We show that the vortex dynamics in PAD undergoes a …

Having the capability of generating superior output power with good spatial pattern at sub-
terahertz (THz) region compared to other sources, gyrotron is well suited for nondestructive …

We studied the transport properties of graphene–insulator–metal tunneling diodes. Two sets
of tunneling diodes with Ti–Cu and Cr–Au top contacts are fabricated. Transport …

Wet etching of gold on graphene is challenging due to the weak adhesion of the resist mask
to graphene. We report an operating procedure for alkali ion-free wet etching of gold on …

An imaging system operated at millimeter (MM) waves and terahertz (THz) frequencies can
be used in many applications such as safety monitoring, public security, medical, healthcare …

The photoresponse of antenna-coupled Hg 1-x Cd x Te (x≈ 0.201) narrow-gap epitaxially
grown photoconductors with normal band ordering having large spin–orbit coupling and …

We propose a graphene-insulator-metal edge tunneling diode for terahertz quadratic
detectors. To demonstrate experimentally the proposed devices, we fabricated two sets of …

We have studied the nanoscale electrical conductivity of a monolayer film of a novel star
shaped liquid crystalline molecule, hexatriphenylene substituted anthraquinone (AQD6) …

In this dissertation, the design, fabrication and characterization of advanced terahertz (THz)
quasi-optical detectors and focal-plane arrays (FPAs) based on monolithically integrated …