Radiation imagery chemistry: process – composition – or product th – Radiation modifying product or process of making – Radiation mask
Patent
1996-05-30
1997-09-23
Rosasco, S.
Radiation imagery chemistry: process, composition, or product th
Radiation modifying product or process of making
Radiation mask
430322, G03F 900
Patent
active
056702809
ABSTRACT:
An optical element includes a phase mask made of a nonlinear material. The element uses the nonlinearity to produce an intensity dependent lens which controls the imaging properties. The invention enables the optical control of the image of an array produced by a diffractive spot generator in direct contact with a thin semiconductor doped glass substrate. By example, the focus of an image at 632.8 nm from a He-Ne laser is controlled by 514.5 nm light from an Argon Ion laser.
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Brown University Research Foundation
Rosasco S.
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