Die analytischen Methoden zur Feststellung des Kalkbedarfes saurer Ackererden

Ohne Zusammenfassung     

A high-average-power diode-pumped Nd:YVO4 regenerative laser amplifier for picosecond-pulses

A 5.3 W average output power at a pulse repetition-rate of 40 kHz was achieved with a diode-end-pumped Nd:YVO₄ regenerative amplifier. In a continuous-wave operation an optical efficiency of 43% was reached. The output pulse duration is 19 ps, if seeded by a 7-ps-oscillator. A maximum pulse repetition-rate of 80 kHz and a maximum pulse energy of 350 J were generated by the entire laser system. PACS 42.65.Re; 42.79.Kr; 42.79.Hp     

Cavity-dumped intracavity-frequency-doubled Yb:YAG thin disk laser with 100 W average power

We report on a cavity-dumped Yb:YAG thin disk laser with intracavity-frequency doubling to provide pulses in the millijoule energy range at a repetition rate of up to 100 kHz. The maximum average output power at 515 nm was 102 W with pulses of a pulse length of 300 ns. An additional advantage of the presented laser setup is the wide tunability of the pulse duration.