[20a-B204-1~9] 3.4 レーザー装置・材料（旧3.5）

10:30 〜 10:45英語発表

[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)

キーワード：

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.