Passively mode-locked Nd: YAG and ruby lasers with high brightness per unit active volume |
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| Authors: | OP Varnavsky AN Kirkin AM Leontovich RG Mirzoyan AM Mozharovsky II Solomatin |
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| Institution: | P.N. Lebedev Physical Institute of the USSR Academy of Sciences, Moscow, USSR |
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| Abstract: | Passively mode-locked Nd: YAG (at room temperature) and ruby (at ≈100 K) lasers with unstable confocal resonators are described. They generated ultrashort pulses with a single pulse energy up to 50 mJ (Nd: YAG) and 50–100 mJ (ruby) and duration ≈40 ps. The active volume was only 5–10 cm3. A beam divergence ≈3 x 10-4 rad close to the diffraction limit and high brightness of radiation ≈1017 W cm-2 srad-1 were obtained. |
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