DocumentCode :
2676415
Title :
Experimental confirmation of Bethe´s diffraction theory
Author :
Kwon, O. ; Pak, S.H. ; So, J.K. ; Baik, I.K. ; Min, S.H. ; Park, Gun-Sik
Author_Institution :
Dept. of Phys. & Astron., Center for THz-Bio Applic. Syst., Seoul, South Korea
fYear :
2011
fDate :
2-7 Oct. 2011
Firstpage :
1
Lastpage :
2
Abstract :
Utilizing high power CW THz Coupled Cavity BWO (CCBWO), over 108 of Signal to Noise Ratio (SNR) is obtained. Extreme subwavelength apertures are perforated on ultrathin aluminum films by micro-photo-etching and It is proved that the transmittance normalized to hole size is proportional to 4th power of the ratio between hole size to incident wavelength for a<;<;λ as Bethe´s expectation.
Keywords :
backward wave oscillators; electromagnetic wave diffraction; etching; terahertz waves; diffraction theory; extreme subwavelength apertures; high power CW THz coupled cavity BWO; microphoto-etching; ultrathin aluminum films; Apertures; Detectors; Films; Magnetic field measurement; Numerical models; Optimized production technology; Signal to noise ratio;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
ISSN :
2162-2027
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
Type :
conf
DOI :
10.1109/irmmw-THz.2011.6105123
Filename :
6105123
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2676415
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