Virtual Journal of Laser

Sinan Bilikmen and Joseph E. Willett
Stimulated backscattering which arises from the parametric decay of an intense electromagnetic wave into an electrostatic wave and a backscattered electromagnetic wave is investigated. The analysis is facilitated by derivation of a pair of coupled differential equations for the amplitudes of the bac ... [J. Appl. Phys. 50, 6811 (2008)] published Wed Jul 30, 2008.

J-P. Caressa, M. Autric, D. Dufresne, and Ph. Bournot
Results of an experimental study on air breakdown produced by radiation from a high-power CO laser are presented. From these measurements, the breakdown threshold over a flux range (1.5 x 10 <7 x 10 W cm) is obtained as a function of the focal length varying from 1 to 55 m. The first of these ex ... [J. Appl. Phys. 50, 6822 (2008)] published Wed Jul 30, 2008.

Motoyasu Terao, Kazuo Shigematsu, Masahiro Ojima, Yoshio Taniguchi, Shinkichi Horigome et al.
The shapes of holes thermally created by a laser beam in thin films of wide range of materials are studied. The most cleanly shaped holes, which measure up to recent requirements for direct-read-after-write video recordings by submicron dots, are obtained in some compositions of amorphous chalcogeni ... [J. Appl. Phys. 50, 6881 (2008)] published Wed Jul 30, 2008.

G. K. Celler, J. M. Poate, G. A. Rozgonyi, and T. T. Sheng
Solid phase epitaxial regrowth of ion-implanted Si was obtained with cw infrared radiation of CO (10.6 [mu]m) and Nd : YAG lasers. Arsenic-implanted samples were analyzed by optical and electron transmission microscopy and by Rutherford backscattering with channeling. Dislocation-free monocrystallin ... [J. Appl. Phys. 50, 7264 (2008)] published Wed Jul 30, 2008.

V. Vanek, D. P. Dixon, and W. Gekelman
Beams of negative ions have been extracted from a plasma generated in a laser-initiated arc passing through a vapor released from an alkali hydride. Beam duration has been greater than 15 msec. An attainable H production efficiency of 41 kW/A is indicated by the present experiment. Such a source wou ... [J. Appl. Phys. 50, 7237 (2008)] published Wed Jul 30, 2008.

Hao-Lin Chen and C. Borzileri
A selective multiphoton photochemical process has been used to enrich nitrogen-14 isotope in methylamine. A separation factor of 2 has been achieved for irradiation of CHNH/CHNH/NO sample with the P (24) line of the 9.6-[mu] CO laser transition. The threshold laser energy fluence for reaction is rou ... [J. Appl. Phys. 50, 7177 (2008)] published Wed Jul 30, 2008.

Y. W. Yi, H. G. Robinson, S. Knappe, J. E. Maclennan, C. D. Jones et al.
We describe a method for characterizing self-assembled monolayers (SAMs) in terms of their performance as antirelaxation wall coatings for alkali atom vapor cells. A combination of initial surface analysis and subsequent laser spectroscopy is used to provide insight into the quality of the coating, ... [J. Appl. Phys. 104, 023534 (2008)] published Wed Jul 30, 2008.

Yuekui Sun, David Cherns, Rachel P. Doherty, James L. Warren, and Peter J. Heard
Transmission electron microscopy was used to study threading dislocations (TDs) in epitaxial ZnO films on (0001) sapphire substrates produced by a two-step method. First, ZnO was deposited by pulsed laser deposition. It was found that the sample consisted of a continuous buffer layer with a high den ... [J. Appl. Phys. 104, 023533 (2008)] published Tue Jul 29, 2008.

Ian L. Sanders and Mark H. Kryder
The dynamic behaviour of 1[mu]m bubble domains in double-layer garnet films in which the driving mechanism is by charged walls at ion-implanted pattern edges has been investigated using a 7 nsec pulsewidth stroboscopic laser system. Bubble propagation around circular and square-shaped structures, an ... [J. Appl. Phys. 50, 2252 (2008)] published Fri Jul 25, 2008.

F. B. Wampler, R. C. Oldenborg, and W. W. Rice
A N-pumped tunable dye laser has been used to obtain the phosphorescence-excitation spectra at 1.00 Torr and room temperature of the 000-000, 010-000, 020-000, 100-000, and 110-000 vibrational bands of the B-->A transition of sulfur dioxide. These spectra support earlier absorption studies regarding ... [J. Appl. Phys. 50, 6117 (2008)] published Fri Jul 25, 2008.