Colorless gradient-index cylindrical lenses with high numerical apertures produced by silver-ion exchange
Applied Optics
|November 12, 2010
Abstract:
Colorless gradient-index cylindrical lenses with high numerical apertures in slabs 200-1000 µm thick have been fabricated by silver-sodium ion exchange in a specially developed glass. The lenses with numerical apertures of 0.6 are characterized by index profiles and by spherical and chromatic aberration. On-axis focusing properties and the application to the collimation of high-power laser diode bars are discussed.
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