Laser-micromachined millimeter-wave photonic band-gap cavity structures
Date
1995
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Source Title
Applied Physics Letters
Print ISSN
0003-6951
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Publisher
American Institute of Physics
Volume
67
Issue
14
Pages
1969 - 1971
Language
English
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Abstract
We have used laser-micromachined alumina substrates to build a three-dimensional photonic band-gap crystal. The rod-based structure has a three-dimensional full photonic band gap between 90 and 100 GHz. The high resistivity of alumina results in a typical attenuation rate of 15 dB per unit cell within the band gap. By removing material, we have built defects which can be used as millimeter-wave cavity structures. The resulting quality ~Q! factors of the millimeter-wave cavity structures were as high as 1000 with a peak transmission of 10 dB below the incident signal. © 1995 American Institute of Physics.
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Keywords
Alumina , Attenuation , Electric conductivity , Electromagnetic wave transmission , Energy gap , Millimeter waves , Natural frequencies , Numerical methods , Q factor measurement , Three dimensional , Band gap cavity structures , Laser machined wafer , Photonic band gap , Transfer matrix method , Crystal defects