Document Detail

Infrared surface polaritons on antimony.
MedLine Citation:
PMID:  22330506     Owner:  NLM     Status:  In-Data-Review    
The semimetal antimony, with a plasma frequency ~80 times less than that of gold, is potentially useful as a host for infrared surface polaritons (SPs). Relevant IR SP properties, including the frequency-dependent propagation length and penetration depths for fields into the media on either side of the interface, were determined from optical constants measured on optically-thick thermally-evaporated Sb films over the wavelength range 1 to 40 μm. Plasma and carrier relaxation frequencies were determined from Drude-model fits to these data. The real part of the permittivity is negative for wavelengths beyond 11 μm. Distinct resonant decreases in specular reflected intensity were observed for Sb lamellar gratings in the wavelength range of 6 to 11 μm, where the real part of the permittivity is positive. Both resonance angles and the angular reflectance spectral line shapes are in agreement with theory for excitation of bound surface electromagnetic waves (SPs). Finite element method (FEM) electrodynamic simulations indicate the existence of SP modes under conditions matching the experiments. FEM results also show that such waves depend on having a significant imaginary part of the permittivity, as has been noted earlier for the case of surface exciton polaritons.
Justin W Cleary; Gautam Medhi; Monas Shahzad; Imen Rezadad; Doug Maukonen; Robert E Peale; Glenn D Boreman; Sandy Wentzell; Walter R Buchwald
Related Documents :
18441416 - Technical note: comparing coherent and incoherent scatter effects for cone-beam ct.
3598826 - Criteria for accurate usage of block models.
20706376 - Profile measuring method based on reflection characteristics at a critical angle in a r...
20330786 - Evaluation of a boss model and subtraction technique for predicting wideband scattering...
21068966 - Finite-element algorithm for radiative transfer in vertically inhomogeneous media: nume...
19290496 - Bioreactor technology in cardiovascular tissue engineering.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Optics express     Volume:  20     ISSN:  1094-4087     ISO Abbreviation:  Opt Express     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-02-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137103     Medline TA:  Opt Express     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2693-705     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Dual-beam-scan Doppler optical coherence angiography for birefringence-artifact-free vasculature ima...
Next Document:  Time-resolved protein nanocrystallography using an X-ray free-electron laser.