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Optical filtering by leaky guided modes in macroporous silicon Ivan Avrutskya)
 

Summary: Optical filtering by leaky guided modes in macroporous silicon
Ivan Avrutskya)
Department of Electrical and Computer Engineering, Wayne State University, Detroit, Michigan 48202
Vladimir Kochergin
Lake Shore Cryotronics, Inc., Columbus, Ohio 43082
Received 17 February 2003; accepted 4 April 2003
We propose an optical filtering mechanism in a porous material based on wavelength-dependent
losses for leaky modes in pore waveguides. The spectral transmission characteristics of such filters
can be controlled by applying thin-film coatings to the pore walls. Such filters will find application
in the deep UV spectral range where traditional approaches to filter design fail due to lack of suitable
materials. 2003 American Institute of Physics. DOI: 10.1063/1.1577382
Macroporous silicon MPSi is an optical material pro-
duced by electroetching of a smooth silicon surface or a sur-
face with pre-etched pits.1,2
Perfectly straight, more than 100
m deep pores with diameters from hundreds of microme-
ters down to submicron scale have been successfully
demonstrated.3
Application of MPSi as a two-dimensional
photonic band gap material has been studied

  

Source: Avrutsky, Ivan - Department of Electrical and Computer Engineering, Wayne State University

 

Collections: Engineering