| 摘要 |
A method is disclosed for generating ultrafine channels through and between opposed surfaces of a thin glass body by preheating the glass body to 500 DEG -1040 DEG F., and directing a beam of laser energy having a wavelength of at least about 10.6 microns along a fixed axis at the preheated body and against one of the surfaces for a period sufficient to melt and vaporize the portion of the glass in the path of the beam. The beam is defocused relative to said one surface and pulsed.
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