Laser-Assisted Diamond Cutting for Low-Damage Fabrication of High-Q CaF2 Whispering-Gallery Mode Resonators
Rongbiao Yang, Tao Jia, Jiamin Rong, Huanfei Wen, Zhidong Xu, Zihan Song, Enbo Xing, Jun Tang, Jun Liu · 2026
Read Laser-Assisted Diamond Cutting for Low-Damage Fabrication of High-Q CaF2 Whispering-Gallery Mode Resonators by Rongbiao Yang, Tao Jia, Jiamin Rong, Huanfei Wen, Zhidong Xu, Zihan Song, Enbo Xing, Jun Tang, Jun Liu (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13209292.txt.
Description
Tiny crystal rings that trap light by whispering-gallery paths need flawless surfaces, but calcium fluoride is hard and brittle. Rongbiao Yang and co-authors shaped it with a diamond cutter warmed by a laser. Computer simulations at the atomic scale showed how heat lowers cutting force and frees internal movement. Scratch tests then showed the depth where clean cutting gives way to cracking.
With laser help, that safe depth grew to about two point eight times the normal value. The team turned a half-dome resonator whose quality factor reached a very high level. Gentle cutting of brittle crystals opens the way to better optical parts. Such resonators serve sensors, lasers, and precision measurement.
Catalog record
| CREATOR | Rongbiao Yang, Tao Jia, Jiamin Rong, Huanfei Wen, Zhidong Xu, Zihan Song, Enbo Xing, Jun Tang, Jun Liu |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 23 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |