Biomedical subjects

Norman P Barnes

Publications and source records attributed to Norman P Barnes.

2 recordsLinked to original sources

PubMed2006

Diode-pumped, continuous-wave Tm:YAIO3 laser.

A continuous-wave, diode-pumped, room-temperature Tm:YAlO3 laser was built, characterized, and compared with a theoretical model. Spectroscopic parameters of the laser crystal, such as the pump band ((3)H4 manifold) lifetime, the upper laser level ((3)F4 manifold) lifetime, and the absorption coefficient were measured. The experimental data were used to calculate the quantum efficiency of Tm self-quenching of the (3)H4 manifold.

Journal Article↗

PubMed2004

Tunability of a 946-nm Nd:YAG microchip laser by use of a double-cavity configuration.

We observed the tunability of a 946-nm Nd:YAG microchip laser by using a double-cavity configuration. We shifted the lasers wavelength from 938 to 946 nm by changing the thickness of the air gap. In addition, differences in reflectivity of the output mirror yielded the tunable range of the 946-nm band, with the center oscillation wavelength maintained at 946.1 nm.

Journal Article↗