Terahertz (THz) wave detection and emission via Cherenkov-phase-matched nonlinear optical effects at 1.55-μm optical wavelength were demonstrated using a GaAs with metal-coating (M-G-M) and bare GaAs as a reference sample in conjunction with a metallic tapered parallel-plate waveguide (TPPWG). The metal-coated GaAs is superior to the bare wafer both as a THz electro-optic detector and as an emitter. Significant improvements in the detection and emission efficiency were obtained by utilizing a metal-coating due to better confinement and lower loss of the THz waves propagating in the M-G-M compared with bare GaAs.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/OE.24.024980 | DOI Listing |
Publication Analysis
Top Keywords
cherenkov-phase-matched nonlinear
8
nonlinear optical
8
gaas metal-coating
8
detection emission
8
bare gaas
8
gaas
5
optical detection
4
detection generation
4
generation terahertz
4
terahertz radiation
4
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!