Pulsed laser method for machining a diamond

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United States of America Patent

PATENT NO 11446759
APP PUB NO 20200122268A1
SERIAL NO

16473341

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Abstract

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A method of machining a diamond includes using a pulsed laser. The diamond is placed in a container containing a transparent liquid. The liquid level is at least 100 microns above a surface of the diamond to be machined, and the transparent liquid can further contain a surfactant additive in an amount of at least 2% and 10% by mass. Next, a laser source is activated such that a laser beam with pulse durations of no longer than one microsecond at a repetition frequency of no more than 5 kHz is applied to the surface to be machined, and relative scanning is performed between the diamond and the laser source, cross-wise to the laser beam and axially in depth, with an amplitude and orientations that are determined by the shape to be machined in the diamond.

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Patent Owner(s)

Patent OwnerAddress
COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES25 RUE LEBLANC BAT LE PONANT PARIS 75015

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Plisson, Thomas Bures-sur-Yvette, FR 1 0
Ruaudel, Eglantine Orsay, FR 1 0
Weck, Gunnar Rochefort en Yvelines, FR 1 0

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