Results 11 to 20 of about 17,221,339 (259)

High-performance versatile setup for simultaneous Brillouin-Raman micro-spectroscopy [PDF]

, 2017
Brillouin and Raman scattering spectroscopy are established techniques for the nondestructive contactless and label-free readout of mechanical, chemical and structural properties of condensed matter.
C Emiliani (21868523), L Comez (21868508), J Sandercock (21868535), L Urbanelli (21868520), G Cardinali (21868532), S Caponi (21843662), A Morresi (21868514), P Sassi (21868511), M Paolantoni (21868517), L Roscini (21868526), S Mattana (21847397), L Corte (21868529), F Palombo (11137548), D Fioretto (21843653), F Scarponi (21868505), S Corezzi (20310237)   +15 more
core   +6 more sources

High contrast gratings for high-precision metrology

, 2022
Paper 86330MExperiments in the field of high-precision optical metrology are crucially limited by thermal noise of the optical components such as mirrors or beam splitters.
Steiner, Stefan, Kley, Ernst-Bernhard, Tünnermann, Andreas, Kroker, Stefanie, Käsebier, Thomas   +4 more
core   +1 more source

Asymmetric direction selective filter elements based on high-contrast gratings

, 2022
Paper 86330ZWe present novel filter elements with an asymmetric angle dependent transmission based on high-contrast gratings. Asymmetric means a different efficiency for positive and negative incidence angles.
Fuchs, Jörg, Steiner, Stefan, Kley, Ernst-Bernhard, Voigt, Daniel, Tünnermann, Andreas, Kroker, Stefanie, Käsebier, Thomas, Fuchs, Frank   +7 more
core   +1 more source

Diffractive optical elements based on subwavelength high-contrast gratings

, 2022
Paper 82700PWe report on novel concepts for reflective diffractive elements based on high-contrast gratings. To demonstrate the possibilities for such devices reflective cavity couplers with three output ports are investigated.
Steiner, Stefan, Kley, Ernst-Bernhard, Weber, Thomas, Tünnermann, Andreas, Kroker, Stefanie, Käsebier, Thomas, Fuchs, Frank   +6 more
core   +1 more source

Novel direction selective filter elements based on high-contrast gratings

, 2022
Paper 827007We introduce concepts for direction selective transmission filters based on dielectric high-contrast gratings. The devices act as angular bandpass filters at an incidence angle of 45° with a total transmission of 68% and a full width at half ...
Steiner, Stefan, Kley, Ernst-Bernhard, Tünnermann, Andreas, Kroker, Stefanie, Käsebier, Thomas, Fuchs, Frank   +5 more
core   +1 more source

High resolution MRI of the brain at 4.7 Tesla using fast spin echo imaging [PDF]

, 2003
Over recent years, high field MR scanners (3 T and above) have become increasingly widespread due to potential advantages such as higher signal-to-noise ratio.
Thomas, D.L., Roberts, S., Yousry, T.A., Ordidge, R.J., De Vita, E., Parkes, H.G., Kinchesh, P., Parkes, H., Shmueli, K., Yousry, T., Turner, R., Thomas, D., Ordidge, R.   +12 more
core   +1 more source

Investigation on the angular dependent reflectance of coupled high-contrast gratings

, 2022
Paper 89950BIn this contribution we discuss configurations of stacked silicon high contrast gratings (HCGs) which are separated by a thin silicon dioxide grating such that they are coupled via their near-fields.
Kley, Ernst-Bernhard, Tünnermann, Andreas, Kroker, Stefanie, Käsebier, Thomas   +3 more
core   +1 more source

Characterization of membrane protein function by solid-state NMR spectroscopy [PDF]

, 2014
Membrane proteins are an important class of biological molecules whose association with lipid bilayers and intrinsic molecular mobility can complicate their structural study by high-resolution methods.
Baldus, Marc, NMR Spectroscopy, Sub NMR Spectroscopy, Baker, Lindsay A.   +3 more
core   +1 more source

Tuning the reflectivity of high contrast gratings based on silicon and silica by means of wet etching with hydrofluoric acid

, 2022
Paper 82700UWe report on experimental etching techniques to trim the efficiency of high-contrast gratings based on silicon and silica. We show that the resonance wavelength and hence the reflectivity can be tuned by means of selectively etching the ...
Kley, Ernst-Bernhard, Jacobitz, Tassilo, Tünnermann, Andreas, Kroker, Stefanie, Käsebier, Thomas   +4 more
core   +1 more source

Solid-state NMR spectroscopy on complex biomolecules [PDF]

, 2010
Biomolecular applications of NMR spectroscopy are often merely associated with soluble molecules or magnetic resonance imaging. However, since the late 1970s, solid-state NMR (ssNMR) spectroscopy has demonstrated its ability to provide atomic-level ...
NMR Spectroscopy, Baldus, M., Cukkemane, A.A., Abhishek Cukkemane, Renault, M.A.M., Sub NMR Spectroscopy, Marie Renault, Marc Baldus   +7 more
core   +1 more source