RSI: Optics; Atoms and Molecules; Spectroscopy; Photon Detectors http://scitation.aip.org/ RSI: Optics; Atoms and Molecules; Spectroscopy; Photon Detectors The electron spectro-microscopy beamline at National Synchrotron Light Source II: A wide photon energy range, micro-focusing beamline for photoelectron spectro-microscopies http://link.aip.org/link/?RSI/83/023102/1&agg=rss R. Reininger, S. L. Hulbert, P. D. Johnson, J. T. Sadowski, D. E. Starr et al.<br/> A comprehensive optical design for a high-resolution, high-flux, wide-energy range, micro-focused beamline working in the vacuum ultraviolet and soft x-ray photon energy range is proposed. The beamline is to provide monochromatic radiation to three photoelectron microscopes: a full-field x-ray photo ... [Rev. Sci. Instrum. 83, 023102 (2012)] published Mon Feb 13, 2012. A capillary absorption spectrometer for stable carbon isotope ratio (C/C) analysis in very small samples http://link.aip.org/link/?RSI/83/023101/1&agg=rss J. F. Kelly, R. L. Sams, T. A. Blake, M. Newburn, J. Moran et al.<br/> A capillary absorption spectrometer (CAS) suitable for IR laser isotope analysis of small CO samples is presented. The system employs a continuous-wave (cw) quantum cascade laser to study nearly adjacent rovibrational transitions of different isotopologues of CO near 2307 cm (4.34 [mu]m). This initi ... [Rev. Sci. Instrum. 83, 023101 (2012)] published Mon Feb 6, 2012. Ultrahigh resolution soft x-ray emission spectrometer at BL07LSU in SPring-8 http://link.aip.org/link/?RSI/83/013116/1&agg=rss Yoshihisa Harada, Masaki Kobayashi, Hideharu Niwa, Yasunori Senba, Haruhiko Ohashi et al.<br/> An extremely high resolution flat field type slit less soft x-ray emission spectrometer has been designed and constructed for the long undulator beamline BL07LSU in SPring-8. By optimizing the ruling parameters of two cylindrical gratings, a high energy resolution DeltaE < 100 meV and/or an E/DeltaE ... [Rev. Sci. Instrum. 83, 013116 (2012)] published Tue Jan 31, 2012. Improving metastable impact electron spectroscopy and ultraviolet photoelectron spectroscopy signals by means of a modified time-of-flight separation http://link.aip.org/link/?RSI/83/013114/1&agg=rss Florian M. Spirkl, Sebastian Kunz, Florian F. Schweinberger, Adrian N. Farnbacher, Richard Schroter et al.<br/> The separation of ultraviolet photoelectron spectroscopy (UPS) and metastable impact electron spectroscopy (MIES) is usually performed by a time-of-flight (ToF) separation using pre-set ToF for both types of signal. In this work, we present a new, improved ex situ signal separation method for the se ... [Rev. Sci. Instrum. 83, 013114 (2012)] published Wed Jan 25, 2012. Time-resolved one-dimensional detection of x-ray scattering in pulsed magnetic fields http://link.aip.org/link/?RSI/83/013113/1&agg=rss Zahirul Islam, Jacob P. C. Ruff, Kate A. Ross, Hiroyuki Nojiri, and Bruce D. Gaulin<br/> We have developed an application of a one-dimensional micro-strip detector for capturing x-ray diffraction data in pulsed magnetic fields. This detector consists of a large array of 50 [mu]m-wide Si strips with a full-frame read out at 20 kHz. Its use substantially improves data-collection efficienc ... [Rev. Sci. Instrum. 83, 013113 (2012)] published Wed Jan 25, 2012. One-shot spectrometer for several elements using an integrated conical crystal analyzer http://link.aip.org/link/?RSI/83/013112/1&agg=rss Kohei Morishita, Kouichi Hayashi, and Kazuo Nakajima<br/> Time-resolved x-ray spectrometry using an ultrastrong x-ray source such as an x-ray free electron laser is one of the new trends in the field of x-ray physics. To achieve such time-resolved measurement, the development of an one-shot spectrometer with a wide wavelength range, high efficiency, and go ... [Rev. Sci. Instrum. 83, 013112 (2012)] published Tue Jan 24, 2012. Two beam surface fluctuation specular reflection spectroscopy http://link.aip.org/link/?RSI/83/013111/1&agg=rss Allan Raudsepp, Christian Fretigny, Francois Lequeux, and Laurence Talini<br/> In surface fluctuation specular reflection spectroscopy (SFSRS) deflections of a specularly reflected laser beam are used to characterize thermally excited surface waves. Here we report on a new two beam version of SFSRS in which the deflections of two reflected laser beams from separate locations o ... [Rev. Sci. Instrum. 83, 013111 (2012)] published Mon Jan 23, 2012. Total internal reflection fluorescence microscopy imaging-guided confocal single-molecule fluorescence spectroscopy http://link.aip.org/link/?RSI/83/013110/1&agg=rss Desheng Zheng, Leonora Kaldaras, and H. Peter Lu<br/> We have developed an integrated spectroscopy system combining total internal reflection fluorescence microscopy imaging with confocal single-molecule fluorescence spectroscopy for two-dimensional interfaces. This spectroscopy approach is capable of both multiple molecules simultaneously sampling and ... [Rev. Sci. Instrum. 83, 013110 (2012)] published Mon Jan 23, 2012. A high accuracy femto-/picosecond laser damage test facility dedicated to the study of optical thin films http://link.aip.org/link/?RSI/83/013109/1&agg=rss B. Mangote, L. Gallais, M. Zerrad, F. Lemarchand, L. H. Gao et al.<br/> A laser damage test facility delivering pulses from 100 fs to 3 ps and designed to operate at 1030 nm is presented. The different details of its implementation and performances are given. The originality of this system relies the online damage detection system based on Nomarski microscopy and the us ... [Rev. Sci. Instrum. 83, 013109 (2012)] published Mon Jan 23, 2012. Positive/negative ion velocity mapping apparatus for electron-molecule reactions http://link.aip.org/link/?RSI/83/013108/1&agg=rss Bin Wu, Lei Xia, Hong-Kai Li, Xian-Jin Zeng, and Shan Xi Tian<br/> In molecular dissociative ionization by electron collisions and dissociative electron attachment to molecule, the respective positively and negatively charged fragments are the important products. A compact ion velocity mapping apparatus is developed for the angular distribution measurements of the ... [Rev. Sci. Instrum. 83, 013108 (2012)] published Fri Jan 20, 2012. An optically pumped XeF(C-A) laser with repetitive rate of 10 Hz http://link.aip.org/link/?RSI/83/013107/1&agg=rss Yu Li, Ma Lian-ying, Yi Ai-ping, Huang Chao, Zhu Feng et al.<br/> A novel XeF(C-A) laser which can be operated in repetition mode has been developed based on surface discharge optical pumping technique. Its maximum repetitive rate is up to 10 Hz. The influence of repetitive rate and gas flow rate on the stability of output energy is studied and the main factor whi ... [Rev. Sci. Instrum. 83, 013107 (2012)] published Fri Jan 20, 2012. A dual-channel, focusing x-ray spectrograph with uniform dispersion for Z pinch plasmas measurement http://link.aip.org/link/?RSI/83/013106/1&agg=rss Qingguo Yang, Zeren Li, Guanhua Chen, Yan Ye, Xianbin Huang et al.<br/> A dual-channel, focusing x-ray spectrograph with uniform dispersion (i.e., the linear dispersion of this spectrograph is a constant) is described for measuring the x-ray spectra emission from the hot, dense Al Z pinch plasmas. The spectrograph uses double uniform-dispersed crystals (e.g., a Quartz 1 ... [Rev. Sci. Instrum. 83, 013106 (2012)] published Thu Jan 19, 2012. Magnetic transport apparatus for the production of ultracold atomic gases in the vicinity of a dielectric surface http://link.aip.org/link/?RSI/83/013105/1&agg=rss S. Handel, A. L. Marchant, T. P. Wiles, S. A. Hopkins, and S. L. Cornish<br/> We present an apparatus designed for studies of atom-surface interactions using quantum degenerate gases of Rb and Rb in the vicinity of a room temperature dielectric surface. The surface to be investigated is a super-polished face of a glass Dove prism mounted in a glass cell under ultra-high vacuu ... [Rev. Sci. Instrum. 83, 013105 (2012)] published Thu Jan 12, 2012. Fully programmable single-photon detection module for InGaAs/InP single-photon avalanche diodes with clean and sub-nanosecond gating transitions http://link.aip.org/link/?RSI/83/013104/1&agg=rss Alberto Tosi, Adriano Della Frera, Andrea Bahgat Shehata, and Carmelo Scarcella<br/> We present the design and characterization of a modern near-infrared photon counting module, able to exploit the best performance of InGaAs/InP single-photon avalanche diodes for the detection of fast and faint optical signals up to 1.7 [mu]m. Such instrument is suitable for many applications, thank ... [Rev. Sci. Instrum. 83, 013104 (2012)] published Tue Jan 10, 2012. Fast magneto-optical spectrometry by spectrometer http://link.aip.org/link/?RSI/83/013103/1&agg=rss G. X. Du, S. Saito, and M. Takahashi<br/> Time efficient measurement of the spectroscopic magneto-optical (MO) activity of materials has always been desirable. In conventional MO systems, the monochromator produces quasi-monochromatic light in a narrow wavelength window. Therefore, to measure the spectroscopic MO activity, a large number of ... [Rev. Sci. Instrum. 83, 013103 (2012)] published Mon Jan 9, 2012. High-precision laser-assisted absolute determination of x-ray diffraction angles http://link.aip.org/link/?RSI/83/013102/1&agg=rss K. KubiCek, J. Braun, H. Bruhns, J. R. Crespo Lopez-Urrutia, P. H. Mokler et al.<br/> A novel technique for absolute wavelength determination in high-precision crystal x-ray spectroscopy recently introduced has been upgraded reaching unprecedented accuracies. The method combines visible laser beams with the Bond method, where Bragg angles (theta and theta) are determined without any ... [Rev. Sci. Instrum. 83, 013102 (2012)] published Wed Jan 4, 2012. Frequency discriminators for the characterization of narrow-spectrum heterodyne beat signals: Application to the measurement of a sub-hertz carrier-envelope-offset beat in an optical frequency comb http://link.aip.org/link/?RSI/82/123116/1&agg=rss Stephane Schilt, Nikola Bucalovic, Lionel Tombez, Vladimir Dolgovskiy, Christian Schori et al.<br/> We describe a radio-frequency (RF) discriminator, or frequency-to-voltage converter, based on a voltage-controlled oscillator phase-locked to the signal under test, which has been developed to analyze the frequency noise properties of an RF signal, e.g., a heterodyne optical beat signal between two ... [Rev. Sci. Instrum. 82, 123116 (2011)] published Wed Dec 28, 2011. Mapping the magnetic field vector in a fountain clock http://link.aip.org/link/?RSI/82/123115/1&agg=rss Marina Gertsvolf and Louis Marmet<br/> We show how the mapping of the magnetic field vector components can be achieved in a fountain clock by measuring the Larmor transition frequency in atoms that are used as a spatial probe. We control two vector components of the magnetic field and apply audio frequency magnetic pulses to localize and ... [Rev. Sci. Instrum. 82, 123115 (2011)] published Tue Dec 27, 2011. Optic-microwave mixing velocimeter for superhigh velocity measurement http://link.aip.org/link/?RSI/82/123114/1&agg=rss Jidong Weng, Xiang Wang, Tianjiong Tao, Cangli Liu, and Hua Tan<br/> The phenomenon that a light beam reflected off a moving object experiences a Doppler shift in its frequency underlies practical interferometric techniques for remote velocity measurements, such as velocity interferometer system for any reflector (VISAR), displacement interferometer system for any re ... [Rev. Sci. Instrum. 82, 123114 (2011)] published Tue Dec 27, 2011. Limitations of the terahertz photomixer http://link.aip.org/link/?RSI/82/123113/1&agg=rss Kacper Nowak, Przemyslaw P. Jarzab, and Edward F. Plinski<br/> In the paper, Fourier transform has been used for calculations of a refractive index of dielectric samples measured in the terahertz photomixer arrangement. We considered measurement limitations caused by a sampling frequency and a photomixer bandwidth. ... [Rev. Sci. Instrum. 82, 123113 (2011)] published Fri Dec 23, 2011. Feedback-controlled laser fabrication of micromirror substrates http://link.aip.org/link/?RSI/82/123112/1&agg=rss Benjamin Petrak, Kumarasiri Konthasinghe, Sonia Perez, and Andreas Muller<br/> Short (40200 [mu]s) single focused CO laser pulses of energy >~100 [mu]J were used to fabricate high quality concave micromirror templates on silica and fluoride glass. The ablated features have diameters of [approximate]20100 [mu]m and average root-mean-square (RMS) surface microroughness near thei ... [Rev. Sci. Instrum. 82, 123112 (2011)] published Wed Dec 21, 2011.