Continuously tunable ultraviolet radiation at 2535 Å

Publisher Website
Google Scholar
Abstract
A continuously tunable ultraviolet source around 2535 Å has been obtained by mixing a narrow-band ruby-laser beam with a broad-band dye-laser beam in a 90° phase-matched ADP crystal. The 90° phase matching was achieved at convenient temperatures around 23°C. The rates of wavelength change of the mixed light with the 90° phase-matching temperature and with the phase-matching angle for fixed temperature were evaluated and found to be dλM/dTM=1.7 Å/°K and dλM/dθM = 24 sin 2θM Å deg−1. The spectral bandwidth of the mixed light at half-intensity was also evaluated and compared with the experimental result of 0.7 Å.