Advantages of pressure scanning over other methods of tuning the wavelength of dye lasers are discussed. The construction of a pressure scanned high resolution dye laser is described. The laser has a scan range of more than 40 cm-1 in its intermediate resolution mode, an improvement on the order of a hundredfold over previous methods of tuning. Preliminary tests have indicated a scan range of 4 cm-1 in the high resolution mode. As a demonstration of its applicability and versatility, the laser was used to xesolve the ground state splitting of the chromium isotopes in ruby.
R. Flach, I. S. Shahin, and W. M. Yen, "Application of Pressure Scanning to the Tuning of a High Resolution Dye Laser," Appl. Opt. 13, 2095-2099 (1974)