[20a-B204-1~9] 3.4 Laser system and materials (formerly 3.5)

10:30 AM - 10:45 AM JST(1:30 AM - 1:45 AM UTC)English Presentation

[20a-B204-6] Sub-PW/(sr cm²), passively cooled microchip laser with unstable resonator

〇Hwan Hong Lim¹, Takunori Taira^2,1 (1.IMS, 2.RIKEN)

Keywords:

Microchip laser,Unstable resonator,High brightness

Our passively cooled Nd:YAG/Cr⁴⁺:YAG MCL achieves a record-breaking 300 TW/(sr cm²) brightness at 10 Hz, delivering 26.4 MW peak power, 10.5 mJ energy, 398 ps pulse duration, and improved M² of 2.7. Additionally, we demonstrate long-range 150 mm focusing air-breakdown and 7-point air-breakdown capabilities.