Yang, A., Steger, M., Sekiguchi, T., Thewalt, M. L. W., Ladd, T. D., Itoh, K. M., ...
We demonstrate a method which can hyperpolarize both the electron and nuclear spins of 31P donors in Si at low field, where both would be essentially unpolarized in equilibrium. It is based on the...
Common browsing and retrieval of technical and experimental data for steady state experiments (2009)
Bluhm, T., Heimann, P., Hennig, C., Kühner, G., Kroiss, H., Laqua, H., ...
Employing industrial standards in software engineering for W7X (2009)
Kühner, G., Bluhm, T., Heimann, P., Hennig, C., Kroiss, H., Krüger, A., ...
Terahertz Raman laser based on silicon doped by phosphorus (2008)
Hübers, Heinz-Wilhelm, Pavlov, Sergei G., Böttger, Ute, Zhukavin, Roman Kh., Shastin, V.N., Hovenier, N., ...
Raman-type simulated emission at frequencies between 5.0 and 5.2 THz as well as between 6.1 and 6.4 THz has been realized in silicon crystals doped by phosphorus donors. The Stokes shift of 3.16 THz...
Data access and its implementation at Wendelstein 7-X (2008)
Bluhm, T., Heimann, R., Hennig, C., Kroiss, H., Kühner, G., Maier, J., ...
Database structures and interfaces for W7-X (2008)
Heimann, P., Bluhm, T., Hennig, C., Kroiss, H., Kühner, G., Maier, J., ...
Continuous data acquisition with online analysis for the Wendelstein 7-X magnetic diagnostics (2008)
Hennig, C., Werner, A., Marquardt, M., Bluhm, T., Kroiss, H., Kühner, G., ...
Zhukavin, R. Kh., Tsyplenkov, V. V., Kovalevsky, K. A., Shastin, V. N., Pavlov, S. G., Böttger, U., ...
The effect of uniaxial stress on terahertz stimulated emission from phosphor and antimony donors in silicon excited by CO2 laser radiation was studied. The laser action originates from 2p0 → 1s...
Stimulated terahertz stokes emission of silicon crystals doped with antimony donors (2006)
Pavlov, S.G., Hovenier, J.N., Klaassen, T.O., Carder, D.A., Phillips, P.J., ...
Optical detection and ionization of donors in specific electronic and nuclear spin states (2006)
Yang, A., Steger, M., Karaiskaj, D., Thewalt, M. L. W., Cardona, M., Itoh, K. M., ...
We resolve the remarkably sharp bound exciton transitions of highly enriched Si-28 using a single-frequency laser and photoluminescence excitation spectroscopy, as well as photocurrent spectroscopy....
Silicon-based Brillouin-type terahertz laser (2006)
Pavlov, S G, Hovenier, J N, Klaassen, T O, Carder, D A, Phillips, P J, ...
Stimulated terahertz stokes emission of silicon crystals doped with antimony donors (2006)
Pavlov, S G, Hovenier, J N, Klaassen, T O, Carder, D A, Phillips, P J, ...
Isotopic dependence of the E-0 ' and E-1 direct gaps in the electronic band structure of Si (2005)
Tsoi, S., Rodriguez, S., Ramdas, A. K., Ager, J. W., Riemann, H., Haller, E. E.
The E-0(') direct transition of Si between its valence band maximum (Gamma(8)(+)) and conduction band minimum (Gamma(6)(-)) and the E-1 direct transition along < 111 > are studied in...
Isotopic dependence of the E-0 ' and E-1 direct gaps in the electronic band structure of Si (2005)
Tsoi, S., Rodriguez, S., Ramdas, A. K., Ager, J. W., Riemann, H., Haller, E. E.
The E-0(') direct transition of Si between its valence band maximum (Gamma(8)(+)) and conduction band minimum (Gamma(6)(-)) and the E-1 direct transition along < 111 > are studied in...
D centers in intracenter Si:P lasers (2005)
Zhukavin, R.Kh., Pavlov, S.G., Kovalevsky, K.A., Riemann, H., Shastin, V.N.
Frequency Tunable Terahertz Silicon Laser (2005)
Hübers, Heinz-Wilhelm, Pavlov, Sergej G., Hovenier, J.N., Klaassen, T.O., Carder, D., Zhukavin, R.Kh., ...
Progress in Semiconductor Spectroscopy Using Isotopically Enriched Si (2005)
Thewalt, M. L. W., Meyer, T. A., Karaiskaj, D., Cardona, M., Haller, E. E., Ager III, J. W., ...
High-purity, isotopically enriched bulk silicon (2004)
Ager III, J.W., Beeman, J.W., Hansen, W.L., Haller, E.E., Sharp, I.D., Liao, C., ...
Tsoi, S., Alawadhi, H., Lu, X., Ager, J. W., Liao, C. Y., Riemann, H., ...
Photoluminescence and wavelength-modulated transmission spectra displaying phonon-assisted indirect excitonic transitions in isotopically enriched Si-28, Si-29, Si-30, as well as in natural Si, have...
Stimulated terahertz emission from arsenic donors in silicon (2004)
Pavlov, S.G., Riemann, H., Abrosimov, N.V., Zhukavin, R.Kh., Shastin, V.N.
Stimulated emission has been obtained from intra-center donor transitions in silicon monocrystals doped by arsenic. The Si:As laser was optically excited by radiation from a CO2 laser. The emission...
Generation of THz emission from donor centers in silicon under intracenter optical pumping (2004)
Pavlov, S.G., Hovenier, J.N., Klaassen, T.O., Carder, D., Zhukavin, R.Kh., ...
Optical pumping of excited donor states in silicon crystals doped by antimony, phosphor, arsenic and bismuth impurity center by emission from a free electron laser yields stimulated terahertz...
Optically pumped terahertz semiconductor bulk lasers (2003)
Pavlov, S.G., Orlova, E.E., Zhukavin, R.Kh., Riemann, H., Nakata, H., ...
The principles of stimulated emission for the terahertz frequency range from shallow impurity centers in bulk semiconductors are discussed. Evidence of stimulated emission from group V donors...
Laser transitions under resonant optical pumping of donor centres in Si:P (2003)
Zhukavin, R.Kh., Gaponova, D.M., Muravjov, A.V., Orlova, E.E., Shastin, V.N., Pavlov, S.G., ...
Silicon lasers based on shallow donor centres (2003)
Shastin, V.N., Orlova, E.E., Zhukavin, R.Kh., Pavlov, S.G., Riemann, H.
Far-infrared stimulated emission from optically excited bismuth donors in silicon (2002)
Pavlov, S.G., Rümmeli, M.H., Orlova, E.E., Shastin, V.N., ...
Optically pumped terahertz silicon lasers (2002)
Pavlov, S. G., Zhukavin, R. Kh., Orlova, E. E., Riemann, H., Shastin, V. N.
Terahertz Emission Spectra of Optically Pumped Silicon Lasers (2002)
Pavlov, S. G., Greiner-Bär, M., Rümmeli, M. H., Kimmitt, M. F., Zhukavin, R. Kh., ...
Terahertz optically pumped Si:Sb laser (2002)
Pavlov, S. G., Riemann, H., Zhukavin, R. Kh., Orlova, E. E., Shastin, V. N.
FIR lasing based on group V donor transitions in silicon (2001)
Orlova, E.E., Pavlov, S.G., Zhukavin, R. Kh., Shastin, V. N., Kirsanov, A.V., ...
Terahertz emission from silicon doped by shallow impurities (2001)
Pavlov, S. G., Rümmeli, M. H., Zhukavin, R. Kh., Orlova, E. E., Riemann, H., ...
Photoluminescence of isotopically purified silicon: How sharp are bound exciton transitions? (2001)
Karaiskaj, D., Thewalt, M. L. W., Ruf, T., Cardona, M., Pohl, H. J., Deviatych, G. G., ...
Stimulated Emission from Donor Transitions in Silicon (2000)
Pavlov, S.G., Zhukavin, R.Kh., Orlova, E.E., Shastin, V.N., Kirsanov, A.V., ...
Population inversion and far-infrared emission from optically pumped silicon (2000)
Auen, K., Rümmeli, M., Pavlov, S.G., Zhukavin, R. Kh., Orlova, E. E., ...
Destruction of Toxic Fungi with Low Concentrations of Methyl Bromide
Aspergillus parasiticus and Penicillium rubrum spores at the level of 104 to 105 / g were completely killed by prolonged exposure to 30 to 45 mg of methyl bromide per liter.
Prevalence of Clostridium botulinum in Semipreserved Meat Products
Abrahamsson, Kerstin, Riemann, H.
Samples of semipreserved meat products were taken, and 372 were examined for Clostridium botulinum. Five samples contained type A and one sample type B.
Assay Methods for Clostridium perfringens Type A Enterotoxin
Genigeorgis, C., Sakaguchi, G., Riemann, H.
Enterotoxin produced by a sporulating culture of Clostridium perfringens type A NCTC 8798 was purified to a level of 3,500 mouse mean lethal doses per mg of nitrogen. High-titer sera were obtained...
Detection of Type E Botulinal Toxin in Cultures by Fluorescent-Antibody Microscopy
Aalvik, B., Sakaguchi, G., Riemann, H.
Vegetative cells of toxigenic Clostridium botulinum type E cultures were stained with fluorescent antitoxin prepared against purified toxin. The staining seems to be specific.
Detection of Salmonella by a Single-Culture Technique
Abrahamsson, Kerstin, Patterson, G., Riemann, H.
Dulcitol-selenite enrichment medium in a motility flask was used for the detection of Salmonella in food. A drop in pH of the dulcitol-selenite enrichment motility broth indicated the presence of...
Destruction of Toxic Fungi with Low Concentrations of Methyl Bromide
Aspergillus parasiticus and Penicillium rubrum spores at the level of 104 to 105 / g were completely killed by prolonged exposure to 30 to 45 mg of methyl bromide per liter.
Prevalence of Clostridium botulinum in Semipreserved Meat Products
Abrahamsson, Kerstin, Riemann, H.
Samples of semipreserved meat products were taken, and 372 were examined for Clostridium botulinum. Five samples contained type A and one sample type B.
Assay Methods for Clostridium perfringens Type A Enterotoxin
Genigeorgis, C., Sakaguchi, G., Riemann, H.
Enterotoxin produced by a sporulating culture of Clostridium perfringens type A NCTC 8798 was purified to a level of 3,500 mouse mean lethal doses per mg of nitrogen. High-titer sera were obtained...
Detection of Type E Botulinal Toxin in Cultures by Fluorescent-Antibody Microscopy
Aalvik, B., Sakaguchi, G., Riemann, H.
Vegetative cells of toxigenic Clostridium botulinum type E cultures were stained with fluorescent antitoxin prepared against purified toxin. The staining seems to be specific.
Detection of Salmonella by a Single-Culture Technique
Abrahamsson, Kerstin, Patterson, G., Riemann, H.
Dulcitol-selenite enrichment medium in a motility flask was used for the detection of Salmonella in food. A drop in pH of the dulcitol-selenite enrichment motility broth indicated the presence of...
Continuous data acquisition with on-line analysis for the Wendelstein7-X magnetic diagnostics
Hennig, Ch., Werner, A., Marquardt, M., Bluhm, T., Heimann, P., Kroiss, H., ...
Investigation of data losses when using UDP communication
Hennig, C., Bluhm, T., Heimann, P., Kroiss, H., Maier, J., Riemann, H., ...
Employing industrial standards in software engineering for W7-X
Kühner, G., Bluhm, T., Heimann, P., Hennig, C., Kroiss, H., Krüger, A., ...
Wendelstein 7-X CoDaC system description
Hennig, C., Bluhm, T., Heimann, P., Kroiss, H., Kühner, G., Laqua, H., ...
Common browsing and retrieval of technical and experimental data for steady state experiments
Bluhm, T., Heimann, P., Hennig, C., Kühner, G., Kroiss, H., Laqua, H., ...
Test of the steady state W7-X control and data acquisition system at the WEGA stellarator
Laqua, H., Aßmus, D., Bluhm, T., Heimann, P., Heinrich, S., Hennig, C., ...
Experiment planning using the high level parameter concept
Riemann, H., Bluhm, T., Heimann, P., Hennig, C., Kühner, G., Kroiss, H., ...
Integration framework for W7-X using service oriented GRID middleware
Werner, A., Svensson, J., Kühner, G., Bluhm, T., Jakob, S., Heimann, P., ...
A first W7-X experiment program editor
Spring, A., Lewerentz, M., Bluhm, T., Heimann, P., Hennig, C., Kühner, G., ...
Software technologies for W7-X configuration and operation editors
Heimann, P., Bluhm, T., Hennig, C., Kroiss, H., Kühner, G., Laqua, H., ...
Concurrent object access for the W7-X configuration database
Maier, J., Bluhm, T., Heimann, P., Hennig, C., Kroiss, H., Kühner, G., ...
Zilker, M., Behler, K., Bluhm, T., Heimann, P., Hennig, C., Kroiss, H., ...