Back to Search
Start Over
Terahertz transmission in subwavelength holes of asymmetric metal-dielectric interfaces: The effect of a dielectric layer
- Source :
- Journal of Applied Physics. 103:033108
- Publication Year :
- 2008
- Publisher :
- AIP Publishing, 2008.
-
Abstract
- The influence of a dielectric thin film on resonant transmission of terahertz pulses in a plasmonic array of subwavelength holes of asymmetric dielectric-metal interfaces is presented. A giant tuning of up to 0.80 THz at the surface plasmon metal-air [±1,0] mode at 1.95 THz and a further enhanced transmission at the metal-Si [±1,0] mode at 0.5 THz are achieved by modifying the film thickness. The experimental results are characterized by numerical simulation based on finite element method and angle-dependent measurements. The sensitive nature in the plasmonic hole array of asymmetric interfaces is promising in applications of biochemical sensing and tunable integrated plasmonic devices.
Details
- ISSN :
- 10897550 and 00218979
- Volume :
- 103
- Database :
- OpenAIRE
- Journal :
- Journal of Applied Physics
- Accession number :
- edsair.doi...........aaeb9f4848aad1d2a1db03f4e9c9fa3a