Optical filtering with incoherent light

✍ Scribed by A. Dickinson

• Publisher: Elsevier Science
• Year: 1969
• Weight: 163 KB
• Volume: 1
• Category: Article
• ISSN: 0374-3926
• DOI: 10.1016/s0374-3926(69)80035-9

✦ Synopsis

Light pulses of half-width T = 5 x 10-9s were obtained with this rotating mirror system, the repetition rate of pulses being n = 4.6 × 103s -1 and the energy of a single pulse 8 × 104 electron-volts. Due to effects resulting from the extremely high speed of the rotating mirror, reflecting layers of both the rotating mirror and all of the stationary mirrors were seriously damaged after a few hours of operation.

Because of this, the high intensity losses arising prevented to achieve shorter pulses of sufficient energy by reflecting the laser beam twice around the rotating mirror. According to the estimated transmission value of 0.01% only about 4 × 102 electron-volts per pulse could have been reached which was far under the limit set by requirements of our experiment.