Refractive Index

Dielectric perturbations: anomalous resonance frequency shifts in optical resonators
Small perturbations in the dielectric environment around resonant dielectric structures usually lead to a frequency shift of the …
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Anomalous blue-shift of terahertz whispering-gallery modes via dielectric and metallic tuning
The vast majority of resonant systems show a red-shift for the resonance frequency when a perturbation, e.g., losses, is introduced to …
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Prism coupling of high-Q terahertz whispering-gallery-modes over two octaves from 0.2 THz to 1.1 THz
We report on prism coupling of high-quality (high-Q) terahertz (THz) whispering-gallery modes (WGMs) in spherical high resistivity …
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