Whispering-mode waveguide
Journal Article
·
· Proc. Soc. Photo-Opt. Instrum. Eng.; (United States)
OSTI ID:5132385
Properties of a relatively new type of waveguide structure of potential use for confining infrared radiation to a small mode volume over long path lengths are reviewed. A single guiding surface with curvature radius rho and bend radius R allows propagation of a near-grazing incidence whispering mode of transverse width approx. (lambda ..sqrt.. rho R/..pi..)/sup 1/2/ and radial width approx. 1/2 (lambda /sup 2/R)/sup 1/3/. For sufficiently large rho, the loss per revolution for TE-mode propgation is approx. ..pi.. A/sub N/, where A/sub N/ is the normal-incidence reflection loss. Results on a number of prototype structures in general agreement with these considerations are described.
- Research Organization:
- Los Alamos National Lab., NM
- OSTI ID:
- 5132385
- Journal Information:
- Proc. Soc. Photo-Opt. Instrum. Eng.; (United States), Journal Name: Proc. Soc. Photo-Opt. Instrum. Eng.; (United States) Vol. 288; ISSN SPIEC
- Country of Publication:
- United States
- Language:
- English
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