F. B. Dunning

A high efficiency dye laser tunable from the UV to the IR

Abstract A dye laser has been developed as a source of tunable radiation in the wavelength range 3500–3700 A. A Variety of dyes and dye mixtures have been used to cover this range. Output powers up to 30 kW are obtained with line-widths less than 1.8 A. A Fabry-Perot etalon reduces the output linewidth to 0.1 A and the peak output power by a factor of three. Second harmonic powers in excess of 2 kW have been generated from the output of this laser.

The generation of tunable coherent radiation in the wavelength range 2300–3000 Å using lithium formate monohydride

Abstract The generation of continuously tunable UV radiation in the wavelength range 2300–3000 A by frequency doubling the output of a nitrogen pumped dye laser is described. A lithium formate monohydride crystal 10 mm long yields a conversion efficiency of typically 2% at fundamental powers in excess of 50 kW and allows the generation of harmonic radiation at wavelengths 150 A below those attainable using a refrigerated ammonium dihydrogen phosphate crystal.

The generation of tunable near IR radiation using a nitrogen laser pumped dye laser

Abstract Excitation transfer between the two components of a dye mixture has allowed a near IR dye laser to be pumped by a nitrogen laser. Several dye mixtures were employed to achieve lasing at all wavelengths within the range 6400–7720 A. The output pulse powers were in excess of 10 kW over most of this range.

Sum frequency mixing in potassium pentaborate as a source of tunable coherent radiation at wavelengths below 217 nm.

The generation of tunable coherent uv radiation by sum frequency mixing, in potassium pentaborate, the outputs of two tunable N(2) pumped dye lasers has been investigated. Tunable radiation extending from 217 nm to 208 nm has been generated in this manner. A conversion efficiency of 2.5 x 10(-4) is observed at input powers of ~2 kW in each laser beam. Improved refractive index data for potassium pentaborate are also presented.

Generation of tunable continuous-wave ultraviolet radiation from 257 to 320 nm

The generation of tunable cw radiation by sum-frequency mixing the output of a Rhodamine 6G laser and selected output lines of an argon-ion laser in an angle-tuned KDP crystal has been investigated. This technique, coupled with second-harmonic generation of the Rhodamine 6G laser, provides a simple source of cw ultraviolet radiation, continuously tunable from 257 to 320 nm, with a maximum output power in excess of 250 microW and a bandwidth of less than 0.03 nm.

The efficient generation of coherent radiation continuously tunable from 2500 Å to 3250 Å

Abstract The generation of continuously tunable UV radiation in the wavelength range 2500–3250 A by frequency doubling the output of a nitrogen pumped dye laser is described. An ADP crystal 25 mm long yields 11% conversion to the UV at a fundamental dye laser power of 60 kW. The parameters affecting the conversion efficiency are discussed.

The efficient generation of tunable near UV radiation using a N2 pumped dye laser

Abstract Power tuning curves are presented for a variety of dyes which lase, under nitrogen laser excitation, within the wavelength range 3600–4500 A. These curves may be used to determine the best choice of dye to generate radiation at any given wavelength within this interval.

Tunable single-mode operation of a cw color-center laser in the near infrared

A tunable cw IR color-center laser has been designed and built using the (F/sub 2//sup +/)( color-centers in NaF giving which provides an output power in excess of 50 mW in the 1.08 ..mu..m region. (AIP)

Computer controlled intracavity SHG in a cw ring dye laser

A tunable computer controlled UV laser spectrometer utilizing intracavity second harmonic generation of a cw ring dye laser is described. The spectrometer yields broadband (~100-GHz) second harmonic outputs of up to 30 mW and narrowband (~100-MHz) single-mode UV outputs of up to 10 mW continuously tunable over intervals of 3200 GHz in the 285-311-nm wavelength range.

Generation of coherent cw radiation tunable from 211 nm to 216 nm.

Many spectroscopic studies require a source of coherent cw radiation tunable in the uv. Continuous wave radiation in the 257 to 360-nm range has been generated by sum frequency mixing, in potassium dihydrogen phosphate (KDP) and its isomorphs, selected output lines from an argon or krypton ion laser with the output of a cw dye laser.