DocumentCode :
822535
Title :
360 
Star Coupler for Detecting Subwavelength Features
Author :
Doerr, Christopher R.
Author_Institution :
Bell Labs., Holmdel, NJ
Volume :
20
Issue :
17
fYear :
2008
Firstpage :
1440
Lastpage :
1442
Abstract :
We propose a novel 360deg star coupler. We show theoretically how this coupler can detect perfectly conducting cylinders with radii significantly smaller than a wavelength, in the far field. We experimentally demonstrate detection of a metal probe using the 360deg star coupler in a silica planar lightwave circuit. With improvements, this coupler may be able to perform subwavelength 2D imaging.
Keywords :
integrated optics; optical couplers; optical information processing; integrated optics; optical planar waveguide couplers; planar lightwave circuit; star couplers; subwavelength 2D imaging; subwavelength feature detection; Arrayed waveguide gratings; Computer vision; Diffraction gratings; Lenses; Light scattering; Mutual coupling; Propagation constant; Reflection; Signal processing; Slabs; Integrated optics; optical imaging; optical planar waveguide couplers;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2008.926852
Filename :
4585416
Link To Document :
