Abstract
A planar Fabry-Perot cavity with intermirror spacing of d ≪ λ is explored for its “zero-order mode” terahertz transmission. The enhanced transmission observed as d → 0 indicates that such cavities satisfy the resonance conditions 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.
| Original language | English |
|---|---|
| Pages (from-to) | 3000-3005 |
| Number of pages | 6 |
| Journal | ACS Omega |
| Volume | 9 |
| Issue number | 2 |
| DOIs | |
| State | Published - 16 Jan 2024 |
All Science Journal Classification (ASJC) codes
- General Chemistry
- General Chemical Engineering