Laser-micromachined millimeter-wave photonic band-gap cavity structures

Journal Article · Mon Oct 02 00:00:00 EDT 1995 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.114756· OSTI ID:240456

Oezbay, E ^[1]; Tuttle, G; McCalmont, J S; Sigalas, M; Biswas, R; Soukoulis, C M; Ho, K M ^[2]

---

1. Department of Physics, Bilkent University, Bilkent, Ankara 06533 (Turkey)
2. Microelectronics Research Center and DOE Ames Laboratory, Iowa State University, Ames, Iowa 50011 (United States)

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 ({ital Q}) factors of the millimeter-wave cavity structures were as high as 1000 with a peak transmission of 10 dB below the incident signal. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

• Research Organization: Ames National Laboratory
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 240456
• Journal Information: Applied Physics Letters, Vol. 67, Issue 14; Other Information: PBD: 2 Oct 1995
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
OPTICS
ALUMINIUM OXIDES
ENERGY GAP
LASER BEAM MACHINING
MICROSTRUCTURE
MICROWAVE RADIATION
PHOTONS