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arXiv · 2312.01320

Enhanced transmission at the zeroth-order mode of a terahertz Fabry-Perot cavity

Soumitra Hazra·Ran Damari·Adina Golombek·Eli Flaxer·Tal Schwartz·Sharly Fleischer
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Abstract

A planar Fabry-Perot cavity with inter-mirror spacing significantly shorter than the probing wavelength is explored for its "zero-order mode" terahertz transmission. The enhanced transmission observed as d approaches 0 indicates that such cavities satisfy the resonance condition across a broad terahertz bandwidth. The experimental signatures from this elusive, "technically challenging" regime are evidenced using time-domain terahertz spectroscopy and are complemented by numerical calculations. The results raise intriguing possibilities for terahertz field modulation and pave new paths for strong coupling of multiple transition frequencies simultaneously.

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Soumitra Hazra, Ran Damari, Adina Golombek, Eli Flaxer, Tal Schwartz, Sharly Fleischer. 2023-12-03. Enhanced transmission at the zeroth-order mode of a terahertz Fabry-Perot cavity. https://arxiv.org/abs/2312.01320

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