Formation of features in optical material

Details Formation of features in optical material Formation of features in optical material

1984-07-02

1986-07-01

Louie, Won H.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Forming nonplanar surface

430324, 430945, 430321, 430296, 430394, 430322, 219121LH, 219121LA, 219121LK, 219121LJ, 219121LL, 219121EJ, 219121EK, 219121LD, 156643, 1562728, 156DIG8, G03C 500

Patent

active

045980390

ABSTRACT:
A laser or other source of radiant electromagnetic energy removes optically transparent material (e.g., LiNbO.sub.3) to form various structures. To enhance coupling the radiant energy to the optical material, a layer of an ablative absorber (e.g., a metal or organic material) can be used. Alternately, the radiant source can be initially operated above a threshold that causes removal of a surface layer of the optical material. After selectively thus removing a surface layer of the optical material, subsequent sub-threshold applications of radiant energy remove additional optical material due to a change in the underlying material, rendering it more absorptive at the wavelength of the electromagnetic energy. Optical devices, including waveguides, can be formed, as well as isolation grooves, alignment structures, etc.

REFERENCES:
patent: 3626143 (1971-12-01), Fry
patent: 3668028 (1972-06-01), Short
patent: 4044222 (1977-08-01), Kestenbaum
patent: 4092518 (1978-05-01), Merard
patent: 4320281 (1982-03-01), Cruickshank et al.
patent: 4324850 (1982-04-01), Tomita et al.
"Efficient LiNbO.sub.3 Balanced Bridge Modular/Switch with an Ion-Etched Slot", American Institute of Physics, M. Minakata, Appl. Phys. Lett. 35(1), Jul. 1, 1979, pp. 40-42.
"Effects of High-Power Laser Radiation", Academic Press, J. F. Ready, 1971, pp. 114-117.
"Absorption Phenomena in Metal Drilling with Nd-Lasers", IEEE Journal of Quantum Electronics, vol. QE-14, No. 2, M. Von Allmen et al., Feb. 1978, pp. 85-88.
"Guide for Material Processing by Lasers", Laser Institute of America, Second Edition--1978, pp. 5-4-5-5.
"Laser-Enhanced Etching and Material Processing", CLEO '83, May 17-20, 1983, p. 214.
"Nd:YAG Laser-Irradiation-Induced Damage to LiNbO.sub.3 and KDP", IEEE Journal of Quantum Electronics, M. Bass, Jul. 1971, pp. 350-359.
"Optically-Induced Physical Damage to LiNbO.sub.3, Proustite, and LiIO.sub.3 ", ASTM Proc. of Symposium on Damage in Laser Materials, W. D. Fountain et al., 1971, pp. 91-97.
"Lasers in Industry", Van Nostrand Reinhold Company, Edited by S. S. Charschan, pp. 146-147.
"Bubble Forming Media for Optical Recording", CLEO 1981, W. B. Robbins et al., Jun. 11, 1981, pp. 2-15.
"Characteristics of Bubble-Forming Optical Direct-Read-After-Write (DRAW) Media", SPIE, vol. 329, Optical Disk Technology, R. P. Freese et al., 1982, pp. 174-180.
"Trilayer Bubble-Forming Optical Recording Media", SPIE, vol. 329, Optical Disk Technology, G. A. N. Connell et al., 1982, pp. 166-173.

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