Outputs (236)

A new generation of magnetoencephalography: Room temperature measurements using optically-pumped magnetometers (2017)
Journal Article
Boto, E., Meyer, S. S., Shah, V., Alem, O., Knappe, S., Kruger, P., Fromhold, T. M., Lim, M., Glover, P. M., Morris, P. G., Bowtell, R., Barnes, G. R., & Brookes, M. J. (2017). A new generation of magnetoencephalography: Room temperature measurements using optically-pumped magnetometers. NeuroImage, 149, 404-414. https://doi.org/10.1016/j.neuroimage.2017.01.034

© 2017 The Authors Advances in the field of quantum sensing mean that magnetic field sensors, operating at room temperature, are now able to achieve sensitivity similar to that of cryogenically cooled devices (SQUIDs). This means that room temperatur... Read More about A new generation of magnetoencephalography: Room temperature measurements using optically-pumped magnetometers.

Radiation trapping in a dense cold Rydberg gas (2017)
Journal Article
Sadler, D., Bridge, E., Boddy, D., Bounds, A., Keegan, N., Lochead, G., Jones, M., & Olmos, B. (2017). Radiation trapping in a dense cold Rydberg gas. Physical Review A, 95(1), Article 013839. https://doi.org/10.1103/PhysRevA.95.013839

Cold atomic gases resonantly excited to Rydberg states can exhibit strong optical nonlinearity at the single photon level. We observe that in such samples radiation trapping leads to an additional mechanism for Rydberg excitation. Conversely we demon... Read More about Radiation trapping in a dense cold Rydberg gas.

Surface-selective direct 17O DNP NMR of CeO2 nanoparticles (2017)
Journal Article
Hope, M. A., Halat, D. M., Magusin, P. C., Paul, S., Peng, L., & Grey, C. P. (2017). Surface-selective direct 17O DNP NMR of CeO2 nanoparticles. Chemical Communications, 53(13), https://doi.org/10.1039/c6cc10145c

Surface-selective direct 17O DNP has been demonstrated for the first time on CeO2 nanoparticles, for which the first three layers can be distinguished with high selectivity. Polarisation build-up curves show that the polarisation of the (sub-)surface... Read More about Surface-selective direct 17O DNP NMR of CeO2 nanoparticles.

Gas around galaxy haloes - III: hydrogen absorption signatures around galaxies and QSOs in the Sherwood simulation suite (2017)
Journal Article
Meiksin, A., Bolton, J. S., & Puchwein, E. (2017). Gas around galaxy haloes - III: hydrogen absorption signatures around galaxies and QSOs in the Sherwood simulation suite. Monthly Notices of the Royal Astronomical Society, 468(2), 1893-1901. https://doi.org/10.1093/mnras/stx191

Modern theories of galaxy formation predict that galaxies impact on their gaseous surroundings, playing the fundamental role of regulating the amount of gas converted into stars. While star-forming galaxies are believed to provide feedback through ga... Read More about Gas around galaxy haloes - III: hydrogen absorption signatures around galaxies and QSOs in the Sherwood simulation suite.

CANDELS multi-wavelength catalogs: source identification and photometry in the CANDELS COSMOS survey field (2017)
Journal Article
Nayyeri, H., Hemmati, S., Mobasher, B., Ferguson, H. C., Cooray, A., Barro, G., Faber, S. M., Dickinson, M., Koekemoer, A. M., Peth, M., Ashby, M. L. N., Salvato, M., Darvish, B., Donley, J., Durbin, M., Finkelstein, S., Fontana, A., Grogin, N. A., Gruetzbauch, R., Huang, K., …Yan, H. (2017). CANDELS multi-wavelength catalogs: source identification and photometry in the CANDELS COSMOS survey field. Astrophysical Journal Supplement, 228(1), Article 7. https://doi.org/10.3847/1538-4365/228/1/7

We present a multi-wavelength photometric catalog in the COSMOS field as part of the observations by the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey. The catalog is based on Hubble Space Telescope Wide Field Camera 3 (HST/WFC3) and... Read More about CANDELS multi-wavelength catalogs: source identification and photometry in the CANDELS COSMOS survey field.

SiC polytypes and doping nature effects on electrical properties of ZnO-SiC Schottky diodes (2017)
Journal Article
Rebaoui, Z., Bouiajra, W., Abboun Abid, M., Saidane, A., Jameel, D., Henini, M., & Felix, J. (2017). SiC polytypes and doping nature effects on electrical properties of ZnO-SiC Schottky diodes. Microelectronic Engineering, 171, https://doi.org/10.1016/j.mee.2017.01.010

Electrical properties of ZnO/SiC Schottky diodes with two SiC polytypes and N and P doping are investigated. Characterization was performed through I–V and C–V–f measurements. Schottky barrier height (Φb), ideality factor (n), and series resistance (... Read More about SiC polytypes and doping nature effects on electrical properties of ZnO-SiC Schottky diodes.

Picosecond acoustics in single quantum wells of cubic GaN/(Al,Ga)N (2017)
Journal Article
Czerniuk, T., Ehrlich, T., Wecker, T., As, D., Yakovlev, D., Akimov, A., & Bayer, M. (2017). Picosecond acoustics in single quantum wells of cubic GaN/(Al,Ga)N. Physical Review Applied, 7(1), Article 014006. https://doi.org/10.1103/PhysRevApplied.7.014006

A picosecond acoustic pulse is used to study the photoelastic interaction in single zinc-blende GaN/AlxGa1−xN quantum wells. We use an optical time-resolved pump-probe setup and demonstrate that tuning the photon energy to the quantum well’s lowest e... Read More about Picosecond acoustics in single quantum wells of cubic GaN/(Al,Ga)N.

Automated extraction of single H atoms with STM: tip state dependency (2017)
Journal Article
Møller, M., Jarvis, S. P., Guérinet, L., Sharp, P., Woolley, R., Rahe, P., & Moriarty, P. (in press). Automated extraction of single H atoms with STM: tip state dependency. Nanotechnology, 28(7), https://doi.org/10.1088/1361-6528/28/7/075302

The atomistic structure of the tip apex plays a crucial role in performing reliable atomic-scale surface and adsorbate manipulation using scanning probe techniques. We have developed an automated extraction routine for controlled removal of single hy... Read More about Automated extraction of single H atoms with STM: tip state dependency.

Diagnosing galactic feedback with line broadening in the low redshift Lyα forest (2017)
Journal Article
Viel, M., Haehnelt, M. G., Bolton, J. S., Kim, T.-S., Puchwein, E., Nasir, F., & Wakker, B. P. (2017). Diagnosing galactic feedback with line broadening in the low redshift Lyα forest. Monthly Notices of the Royal Astronomical Society: Letters, 467(1), L86-L90. https://doi.org/10.1093/mnrasl/slx004

We compare the low-redshift (z 0.1) Lyα forest from hydrodynamical simulations with data from the Cosmic Origins Spectrograph. We find the tension between the observed number of lines with b-parameters in the range of 25–45 km s−1 and the prediction... Read More about Diagnosing galactic feedback with line broadening in the low redshift Lyα forest.

Evolution of cosmic star formation in the SCUBA-2 Cosmology Legacy Survey (2017)
Journal Article
Bourne, N., Dunlop, J., Merlin, E., Parsa, S., Schreiber, C., Castellano, M., Conselice, C. J., Coppin, K., Farrah, D., Fontana, A., Geach, J., Halpern, M., Knudsen, K., Michałowski, M., Mortlock, A., Santini, P., Scott, D., Shu, X., Simpson, C., Simpson, J., …van der Werf, P. (2017). Evolution of cosmic star formation in the SCUBA-2 Cosmology Legacy Survey. Monthly Notices of the Royal Astronomical Society, 467(2), 1360-1385. https://doi.org/10.1093/mnras/stx031

We present a new exploration of the cosmic star formation history and dust obscuration in massive galaxies at redshifts 0.5 < z < 6. We utilize the deepest 450- and 850-μm imaging from SCUBA-2 CLS, covering 230 arcmin2 in the AEGIS, COSMOS and UDS fi... Read More about Evolution of cosmic star formation in the SCUBA-2 Cosmology Legacy Survey.