Concept

Elliptical polarization

Publications associées (247)

Dynamic Nuclear Polarization and Other Magnetic Ideas at EPFL

Geoffrey Bodenhausen, Aurélien Bornet, Pascal Miéville, Sami Jannin, Jonas Milani, Diego Carnevale, Simone Ulzega, Marc Anthony Caporini, Nicola Salvi, Daniele Mammoli, Roberto Buratto, Martial Rey, Angel Joaquin Perez Linde, Srinivas Chinthalapalli, Shutao Wang

Although nuclear magnetic resonance (NMR) can provide a wealth of information, it often suffers from a lack of sensitivity. Dynamic Nuclear Polarization (DNP) provides a way to increase the polarization and hence the signal intensities in NMR spectra by tr ...

Schweizerische Chemische Gesellschaft2012

Thermally Induced Cooperative Molecular Reorientation and Nanoscale Polarization Switching Behaviors of Ultrathin Poly(vinylidene fluoride-trifluoroethylene) Films

Nava Setter, Igor Stolichnov, Dong Guo

Ultrathin films of the ferroelectric polymer poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] have recently attracted intensive research interest due to their potential applications in emerging organic devices. As special geometry confinement syst ...

2011

Low-temperature cross polarization in view of enhancing dissolution Dynamic Nuclear Polarization in NMR

Geoffrey Bodenhausen, Aurélien Bornet, Sami Jannin

Dynamic Nuclear Polarization (DNP) induced by saturation of ESR transitions of TEMPO at 1.2 K and 3.35 T is characterized by build-up rates that are typically 5 times faster for protons than for the carboxylic carbon-13 in acetate. We show that cross polar ...

Elsevier2011

Spin-to-orbital angular momentum conversion in semiconductor microcavities

Benoît Marie Joseph Deveaud, François Morier-Genoud, Timothy Chi Hin Liew, Konstantinos Lagoudakis, Taofiq Paraïso, Roland Cerna, Francesco Manni

We experimentally demonstrate a technique for the generation of optical beams carrying orbital angular momentum using a planar semiconductor microcavity. Despite being isotropic systems with no structural gyrotropy, semiconductor microcavities, because of ...

2011

Polarization pulling based on stimulated Brillouin scattering in a dual-pump configuration

Luc Thévenaz, Sang Hoon Chin, Nikolay Primerov

Stimulated Brillouin scattering (SBS) amplification of probe signals is highly polarization dependent. Maximum and minimum gain values are associated with a pair of orthogonal states of polarization (SOP) at the fiber output. Since the maximum gain is much ...

SPIE2011

Dual-pump push-pull polarization control using stimulated Brillouin scattering

Luc Thévenaz, Sang Hoon Chin, Nikolay Primerov

Stimulated Brillouin scattering (SBS) amplification of probe signals is highly polarization dependent. Maximum and minimum gain values are associated with a pair of orthogonal states of polarization (SOP), which are related to the pump SOP. Since the maxim ...

Optical Society of America2011

Illuminating the dark corridor in graphene: Polarization dependence of angle-resolved photoemission spectroscopy on graphene

Klaus Kern, Isabella Gierz

We have used s- and p-polarized synchrotron radiation to image the electronic structure of epitaxial graphene near the (K) over bar point by angle-resolved photoemission spectroscopy (ARPES). Part of the experimental Fermi surface is suppressed due to the ...

2011

A Far-Infrared Polarimeter Diagnostic for the Measurement of the Poloidal Magnetic Field in the TCV Tokamak

Information about the poloidal field inside the plasma and about the current density profile is essential for the understanding of the behavior of tokamak plasmas. The poloidal field outside the plasma edge is easily measured by a set of magnetic coils, wh ...

EPFL2011

Advanced Fiber Optics: Concepts and Technology

Luc Thévenaz

Few technologies have had as much impact on society as fiber optics. These tiny hair-sized glass wires have deeply transformed the way we access information, our modes of communication and even the behavior of consumers. Today, optical fibers are omniprese ...

EPFL Press, distributed by CRC Press2011

A New Planar Antenna Element For Ka-Band Applications

Juan Ramon Mosig, Jean-François Zürcher, Rafal Glogowski

One of the most promising bands for long-range radiocommunications is the Ka-band (25-40 GHz). This is due to the existence of a natural radio transmission window around 30 GHz. Both terrestrial and satellite transmission systems are planned on this freque ...

2011

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