发明名称 |
Methods for creating optical structures in dielectrics using controlled energy deposition |
摘要 |
The present invention relates to a method for writing an optical structure within a workpiece of a dielectric material using FLDM. In a first embodiment system parameters for the FLDM are determined in dependence upon the dielectric material, a predetermined volume element and a predetermined change of the refractive index of the dielectric material within the predetermined volume element. The system parameters are determined such that self-focusing of a pulsed femtosecond laser beam is inhibted by non-linear absorption of the energy of the pulsed femtosecond laser beam within the dielectric material. A pulsed femtosecond laser beam based on the determined system parameters is focused at a predetermined location within the workpiece for inducing a change of the refractive index through dielectric modification within the predetermined volume element, the volume element including the focus. Various embodiments enable writing of various different optical structures into a workpiece. |
申请公布号 |
AU8740101(A) |
申请公布日期 |
2002.03.04 |
申请号 |
AU20010087401 |
申请日期 |
2001.08.21 |
申请人 |
NATIONAL RESEARCH COUNCIL OF CANADA |
发明人 |
ORSON BOURNE;DAVID RAYNER;PAUL CORKUM;MANJUSHA MEHENDALE;ANDREI YU NAUMOV |
分类号 |
B23K26/00;B23K26/06;G02B6/12;G02B6/13;G02B6/132 |
主分类号 |
B23K26/00 |
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