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  4. Microlens arrays by field-assisted Ag(+)-exchange
 
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1997
Conference Paper
Title

Microlens arrays by field-assisted Ag(+)-exchange

Abstract
The formation of both cylindrical as well as sperical microlens arrays by field assisted Ag+-exchange with N.A. up to 0.2 is presented. A special designed optical glass enabling a refractive index increase of 0.14 is used. Modelling of field assisted exchange processes and the aquisition of material parameters like concentration dependent diffusion coefficient are discussed. The lenses are characterized by a shearing interferometer and exhibit diffraction limited performance with numerical apertures N.A. up to 0.20.
Author(s)
Messerschmidt, B.
Pfeil, A.
Poßner, T.
Mainwork
MOC/GRIN '97. Technical digest of the 6th Microoptics Conference and the 14th Topical Meeting on Gradient-Index Optical Systems  
Conference
Microoptics Conference (MOC) 1997  
Topical Meeting on Gradient Index Optical Systems (GRIN) 1997  
Language
English
Fraunhofer-Institut für Angewandte Optik und Feinmechanik IOF  
Keyword(s)
  • characterization of microlenses

  • gradient index optics

  • ion exchange

  • microlens array

  • microoptics

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