METHODS FOR OBTAINING LASER ACTION AT WAVELENGTHS SHORTER THAN 3000 A
Abstract
There are many reasons why it would be desirable to develop lasers in the ultraviolet and X-ray regions of the spectrum. Possible applications include fluorescence studies and devices, short wavelength holography, band structure studies in solids, atomic and molecular spectroscopy, biological research, medical applications, X-ray transmission, and high energy physics research. Unfortunately, as frequency increases it becomes progressively more difficult to achieve laser action by the standard process of population inversion. The reason for the difficulty is that with a given pump power density the gain at the laser wavelength decreases rapidly with increasing frequency. Thus, it is desirable to investigate other methods for achieving coherent stimulated emission at short wavelengths. Two techniques are being investigated which are applicable to short wavelength laser action. The first is two-step laser action. The second is a tunable Cerenkov laser.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1969
- Accession Number
- AD0696136
Entities
People
- R. H. Pantell
Organizations
- Stanford University