Laser generated X-ray source
US5539764A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 1995 |
| Grant date | Jul 23, 1996 |
| Priority date | — |
| Expiry date | May 4, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An improved high average power, high brightness laser system. The laser system comprises an XeCI excimer amplifier, an XeCI excimer preamplifier, a means for generating a picosecond seed pulse tailored for the XeCI preamplifier and the XeCI amplifier and a means for focusing the output pulse laser beam onto a spot smaller in area than 100.times.10.sup.-6 cm.sup.2. We first produce a seed laser beam consisting of a series of bunches of short duration pulses with a bunch frequency in excess of 100 pulses per second. These seed laser pulses are produced by a Nd:YAG pumped dye laser oscillator with a cavity dumper. The pulses in the beam are preamplified in a multipass preamplifier and the pulses are then multiplexed in a pulse train generator into a larger number of lower power pulses. A multi-pass laser amplifier then amplifies each pulse in the bunched pulse laser beam to produce an amplified pulse laser beam which is then tightly focused to so that the individual pulses are at brightness levels in excess of 10.sup.11 Watts/cm.sup.2. A prototype device built and tested by Applicants and their fellow workers has produced a pulsed laser beam with 50 ps, 30.times.10.sup.-3 Joule pulses…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.