DocumentCode
2942028
Title
Does evanescent gain exist?
Author
Grepstad, Jon Olav ; Skaar, Johannes
Author_Institution
Dept. of Electron. & Telecommun., Norwegian Univ. of Sci. & Technol., Trondheim, Norway
fYear
2011
fDate
13-20 Aug. 2011
Firstpage
1
Lastpage
4
Abstract
We have investigated the situation where light incident from a passive high-refractive-index medium is totally reflected off an infinite half space with gain. The question of whether or not evanescent gain can prevail in this case, has been at issue for 40 years. We argue that the controversy can be resolved for week gain media using the Laplace transform, combined with a detailed analysis of analytic and global properties of the permittivity function of the active medium.
Keywords
Laplace transforms; light reflection; permittivity; refractive index; Laplace transform; evanescent gain; passive high-refractive-index medium; permittivity function; total reflection; Frequency domain analysis; Laplace equations; Media; Optimized production technology; Permittivity; System-on-a-chip; Time domain analysis;
fLanguage
English
Publisher
ieee
Conference_Titel
General Assembly and Scientific Symposium, 2011 XXXth URSI
Conference_Location
Istanbul
Print_ISBN
978-1-4244-5117-3
Type
conf
DOI
10.1109/URSIGASS.2011.6123712
Filename
6123712
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