Possibility to enhance teraherz emission from intrinsic Josephson junction by external local heating

TL;DR

This paper proposes a method to enhance terahertz emission from intrinsic Josephson junctions by applying external local heating, which excites plasma waves and increases emission power, offering a practical approach for solid-state THz emitters.

Contribution

It introduces a novel technique of using local heat sources to control temperature in IJJs, significantly boosting THz emission power.

Findings

Optimal heating conditions for maximum THz emission identified

External local heating effectively excites Josephson plasma waves

Method offers a practical route for solid-state THz emitter development

Abstract

We theoretically propose a practical method for realizing intense terahertz (THz) emission from intrinsic Josephson junctions (IJJs) using an external heat source. An artificial inhomogeneous temperature distribution by the local heating strongly excites the Josephson plasma wave inside IJJs and enhances THz emission power. We show optimum heating conditions for achieving high power THz emission. Our result indicates that local heat control is a powerful method to realize practical solid-state THz-emitters utilizing IJJs.