Active volume scaling of gold vapor laser oscillating in ultraviolet and deep ultraviolet spectral ranges
Ivan Kirilov Kostadinov, Krassimir Angelov Temelkov, Lidia Todorova Popova, Stefka Ivanova Slaveeva, Georgi Petkov Yankov, Borislav Lubomirov Ivanov · 2026
Read Active volume scaling of gold vapor laser oscillating in ultraviolet and deep ultraviolet spectral ranges by Ivan Kirilov Kostadinov, Krassimir Angelov Temelkov, Lidia Todorova Popova, Stefka Ivanova Slaveeva, Georgi Petkov Yankov, Borislav Lubomirov Ivanov (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/PMC13500818.txt.
Description
Ivan Kirilov Kostadinov leads a six-author team reporting a 2026 experimental study of a gold vapour laser that emits ultraviolet light. The team built and tested six laser tubes of different diameters, lengths, and active volumes to see how output scales with the size of the glowing region. Gold vapour lasers are the only metal vapour source working on this ultraviolet transition, yet they run at extreme temperatures and remain far less developed than copper vapour lasers.
The best tube delivered a maximum average output power of 1.07 watts at a wavelength near 312 nanometres. Output per unit volume reached 56.3 milliwatts per cubic centimetre, more than six times the best previously reported figure. An unstable cavity with a Glan prism produced polarized, high-quality beam output for the first time in such a device. Mixing the lines near 312 and 628 nanometres generated a new deep-ultraviolet line near 209 nanometres.
Catalog record
| CREATOR | Ivan Kirilov Kostadinov, Krassimir Angelov Temelkov, Lidia Todorova Popova, Stefka Ivanova Slaveeva, Georgi Petkov Yankov, Borislav Lubomirov Ivanov |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 20230 |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |