Fig. 1. Ultra-precision machining experimental system and confocal microscope test results for turning quartz glass with diamond tool^[32]. (a) Cutting depth of 1 μm and feed rate of 1 μm/r; (b) cutting depth of 6 μm and feed rate of 5 μm/r

Fig. 2. Comparison between new ultrasonic vibration assisted machining and traditional machining^[33]. (a) Conventional and ultrasonic machining setup; (b) diamond tool-sample contact movement in machining; (c) machining-induced edge chipping damage depths

Fig. 3. Comparison between laser and traditional glass processing technology^[37]

Fig. 4. Progress in laser cutting and separation technology of glass materials

Fig. 5. Experimental setup for laser irradiation of glass samples and morphology of the bubbles (SEM imaging) formed at different laser scanning speeds^[40]

Fig. 6. Femtosecond laser ablation process^[42]. (a) Thin glass cutting process; (b) supporting jig in details; (c) experimental setup of three-point bending test and cross sectional images of cutting surface

Fig. 7. Schematic of laser setup and comparison before and after surface damage ^[47]

Fig. 8. Schematic of the device for forming a flowing water layer at the top of a glass sample and optical micrograph of the cutting edge on the front side of a laser cut glass strip^[48]

Fig. 9. Kerf quality characteristics^[50]

Fig. 10. Setup for the Bessel beam generation^[51]

Fig. 11. Laser-induced cleaving of D263T glass by volume absorption of Bessel beams^[51]

Fig. 12. Schematic of top-bottom cutting and bottom-top cutting, and SEM images of etched cross-section and OM images of bare front- and back-surface^[52]

Fig. 13. Schematic of dual beam CO₂ laser cutting glass and sectional view of dual beam CO₂ laser thermal stress cutting glass ^[59]

Fig. 14. Schematic of FMFLS separation of thick glass and micrographs of the top and bottom slits obtained by FMFLS at P=80 W and V=1000 μm/s^[31]