, Jerry F. Moore, Slobodan Milasinovic, Yaoming Liu
, Robert J. Gordon et al.
An ultrafast laser ablation time-of-flight mass spectrometer (AToF-MS) and associated data acquisition software that permits imaging at micron-scale resolution and sub-micron-scale depth profiling are described. The ion funnel-based source of this instrument can be operated at pressures ranging from ... [Rev. Sci. Instrum. 83, 093702 (2012)] published Tue Sep 11, 2012.
Eiji Fujimoto, Masatomo Sumiya, Tsuyoshi Ohnishi, Mikk Lippmaa, Masaki Takeguchi et al.
We have developed a new laser heating system for thin film growth by chemical vapor deposition (CVD). A collimated beam from a high-power continuous-wave 808 nm semiconductor laser was directly introduced into a CVD growth chamber without an optical fiber. The light path of the heating laser inside ... [Rev. Sci. Instrum. 83, 094701 (2012)] published Thu Sep 6, 2012.
Zhouxiang Xu, Xian Zhang, Kaikai Huang, and Xuanhui Lu
We have designed and implemented a highly digital optical phase-locked loop (OPLL) for diode lasers in atom interferometry. The three parts of controlling circuit in this OPLL, including phase and frequency detector (PFD), loop filter and proportional integral derivative (PID) controller, are imple ... [Rev. Sci. Instrum. 83, 093104 (2012)] published Wed Sep 5, 2012.
K. B. Fournier, V. Rekow, J. Emig, J. H. Fisher, C. D. Newlander et al.
We have designed a sample cassette that can be used to position up to six samples in the OMEGA laser chamber. The cassette accommodates round samples up to 38.1 mm (1.5) in diameter and square samples up to 27 mm on a side, any of which can be up to 12.7 mm thick. Smaller specimens are centered with ... [Rev. Sci. Instrum. 83, 10E136 (2012)] published Fri Aug 31, 2012.
B. B. Pollock, J. Meinecke, S. Kuschel, J. S. Ross, J. L. Shaw et al.
Uniform density and temperature Xe plasmas have been produced over >4 mm scale-lengths using x-rays generated in a cylindrical Pb cavity. The cavity is 750 [mu]m in depth and diameter, and is heated by a 300 J, 2 ns square, 1054 nm laser pulse focused to a spot size of 200 [mu]m at the cavity entran ... [Rev. Sci. Instrum. 83, 10E348 (2012)] published Fri Aug 24, 2012.
Charles Reverdin, Frederic Thais, Guillaume Loisel, M. Busquet, S. Bastiani-Ceccotti et al.
An x-ray grating spectrometer was built in order to measure opacities in the 50 eV to 250 eV spectral range with an average spectral resolution
S. C. Bott, G. Collins, IV, K. Gunasekera, D. Mariscal, F. N. Beg et al.
In this work we demonstrate a design for obtaining laser backlighting (e.g., interferometry) and time-resolved extreme ultraviolet self-emission images along the same line-of-sight. This is achieved by modifying a single optical component in the laser collection optics with apertures and pinhole arr ... [Rev. Sci. Instrum. 83, 083507 (2012)] published Thu Aug 23, 2012.
C. G. Brown, Jr., J. Ayers, B. Felker, W. Ferguson, J. P. Holder et al.
Electromagnetic interference (EMI) is an ever-present challenge at laser facilities such as the National Ignition Facility (NIF). The major source of EMI at such facilities is laser-target interaction that can generate intense electromagnetic fields within, and outside of, the laser target chamber. ... [Rev. Sci. Instrum. 83, 10D729 (2012)] published Wed Aug 22, 2012.
N. Guler, P. Volegov, C. R. Danly, G. P. Grim, F. E. Merrill et al.
Inertial confinement fusion experiments at the National Ignition Facility are designed to understand the basic principles of creating self-sustaining fusion reactions by laser driven compression of deuterium-tritium (DT) filled cryogenic plastic capsules. The neutron imaging diagnostic provides in ... [Rev. Sci. Instrum. 83, 10D316 (2012)] published Wed Aug 22, 2012.
W. J. Schwenger and J. M. Higbie
Acousto-optic modulators are widely used for rapid switching and shuttering of laser beams. In many applications, the concomitant frequency shift is undesirable and must be compensated for elsewhere in the system. Here we present a simple method of achieving rapid laser power switching without an ac ... [Rev. Sci. Instrum. 83, 083110 (2012)] published Mon Aug 20, 2012.