Enhanced microwave transmission through quasicrystal hole arrays
نویسندگان
چکیده
منابع مشابه
Enhanced millimeter-wave transmission through subwavelength hole arrays.
We explore, both experimentally and theoretically, the existence in the millimeter-wave range of the phenomenon of extraordinary light transmission through arrays of subwavelength holes. We have measured the transmission spectra of several samples made on aluminum wafers by use of an AB Millimetre quasi-optical vector network analyzer in the wavelength range 4.2-6.5 mm. Clear signals of the exi...
متن کاملextraordinary transmission through subwavelength hole arrays
The recent history of the research and development around plasmon surface waves that was initiated by the work published in Nature in 1998 by Ebbesen et al. [1] looks like a ten-fold compressed version of studies initiated more than a century ago by Robert Wood with his discovery of anomalies in the efficiency of metallic diffraction gratings, now known as Wood’s anomalies [2]. In 1902, R. Wood...
متن کاملControl of enhanced THz transmission through metallic hole arrays using nematic liquid crystal.
We demonstrate frequency tuning of enhanced THz radiation transmitted through a two-dimensional metallic hole array (2D-MHA) by controlling the index of refraction of the medium filling the holes and adjacent to the 2D-MHA on one side. The medium is a nematic liquid crystal (NLC) and its index of refraction is varied using magnetically controlled birefringence of the NLC. With the NLC, the peak...
متن کاملDiffracted evanescent wave model for enhanced and suppressed optical transmission through subwavelength hole arrays.
Transmission enhancements of order 1000 have been reported for subwavelength hole arrays in metal films and attributed to surface plasmon (SP) resonance. We show that the properly normalized enhancement factor is consistently less than 7, and that similar enhancements occur in nonmetallic systems that do not support SPs. We present a new model in which the transmission is modulated not by coupl...
متن کاملTheory of extraordinary optical transmission through subwavelength hole arrays.
We present a fully three-dimensional theoretical study of the extraordinary transmission of light through subwavelength hole arrays in optically thick metal films. Good agreement is obtained with experimental data. An analytical minimal model is also developed, which conclusively shows that the enhancement of transmission is due to tunneling through surface plasmons formed on each metal-dielect...
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ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2007
ISSN: 0003-6951,1077-3118
DOI: 10.1063/1.2773763