Submillimeter detection using a Schottky diode with a long-wire antenna

Abstract

A Schottky diode originally made for use as a detector and a mixer in the millimeter‐waveglength region has been used as a room‐temperature fast detector in the submillimeter‐wavelength region. A voltage responsivity of 2 V/W and an NEP of 1×10⁻⁷ W/Hz^1/2 at 337 μm were obtained by using high‐gain long‐wire‐antenna coupling. The experimental and theoretical responses of the antenna structure are compared.