Possibilities for achieving x-ray lasing action by use of high-order multiphoton processes
Abstract
Some possible mechanisms for producing gain in the 10-nm spectral region are considered. They involve the creation of a population inversion in a confined plasma column by selective excitation of multiply charged ions through absorption of many (greater than 10) ultraviolet photons. Calculations of the energy-level structure of ions in the Kr isoelectronic sequence show singly and multiply excited states that provide suitable strong radiative transitions in the region of 10 nm. The potential for achieving X-ray lasing action in Kr-like ions pumped by a KrF excimer laser is most favorable at high Z.
- Publication:
-
Journal of the Optical Society of America B Optical Physics
- Pub Date:
- March 1986
- DOI:
- 10.1364/JOSAB.3.000371
- Bibcode:
- 1986JOSAB...3..371C
- Keywords:
-
- Krypton Fluoride Lasers;
- Laser Pumping;
- Multiphoton Absorption;
- Photoionization;
- Population Inversion;
- X Ray Lasers;
- Atomic Energy Levels;
- Atomic Excitations;
- Excimer Lasers;
- Laser Plasma Interactions;
- Lasing;
- Pulsed Lasers;
- Ultraviolet Absorption;
- Lasers and Masers