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When a circularly polarized plane wave is normally incident on a slab of a structurally chiral material with local $\bar{4}2m$ point group symmetry and a central twist defect, the slab can function as either a narrowband reflection hole…

Optics · Physics 2007-05-23 Akhlesh Lakhtakia

We have constructed and experimentally tested a microwave half waveplate using the dispersive birefringent properties of a bulk two-dimensional photonic crystal away from its band gap. Our waveplate device exhibited a 200:1 polarization…

Condensed Matter · Physics 2009-11-10 D. R. Solli , C. F. McCormick , R. Y. Chiao , J. M. Hickmann

Propagation features of circularly polarized (CP) electromagnetic waves in magnetized plasmas are determined by the plasma density and the magnetic field strength. This property can be applied to design a unique plasma photonic device for…

Plasma Physics · Physics 2020-12-30 Takayoshi Sano , Yusuke Tatsumi , Masayasu Hata , Yasuhiko Sentoku

We present a method that combines continuous and pulsed microwave radiation patterns to achieve robust interactions among hyperfine trapped ions placed in a magnetic field gradient. More specifically, our scheme displays continuous…

Quantum Physics · Physics 2020-03-04 I. Arrazola , M. B. Plenio , E. Solano , J. Casanova

We investigate theoretically the interaction of polar molecules with optical lattices and microwave fields. We demonstrate the existence of frequency windows in the optical domain where the complex internal structure of the molecule does…

Quantum Physics · Physics 2009-11-13 S. Kotochigova , E. Tiesinga

It is shown that the frequency distribution of the degree of circular polarisation for a homogeneous source is sensitive to the properties of the synchrotron emitting plasma. Most of the circular polarisation comes from the region around…

High Energy Astrophysical Phenomena · Physics 2019-03-13 Claes-I. Bjornsson

The quasi-optical modulation of linear polarization at millimeter and sub-millimeter wavelengths can be achieved by using rotating half wave plates (HWPs) in front of polarization sensitive detectors. Large operational bandwidths are…

Instrumentation and Methods for Astrophysics · Physics 2016-10-04 Giampaolo Pisano , Bruno Maffei , Peter A. R. Ade , Paolo de Bernardis , Peter De Maagt , Brian Ellison , Manju Henry , Ming Wah Ng , Brian Schortt , Carole Tucker

It has already been shown that microlensing can give rise to a non-zero variable polarisation signal. Here we use realistic simulations to demonstrate the additional information that can be gained from polarimetric observations of lensing…

Astrophysics · Physics 2009-10-30 A. M. Newsam , J. F. L. Simmons , M. A. Hendry , I. J. Coleman

We describe the Submillimeter Array (SMA) Polarimeter, a polarization converter and feed multiplexer installed on the SMA. The polarimeter uses narrow-band quarter-wave plates to generate circular polarization sensitivity from the…

Astrophysics · Physics 2009-11-13 Daniel P. Marrone , Ramprasad Rao

The fragile nature of quantum circuits is a major bottleneck to scalable quantum applications. Operating at cryogenic temperatures, quantum circuits are highly vulnerable to amplifier backaction and external noise. Non-reciprocal microwave…

The V-mode polarization of the Cosmic Microwave Background is discussed in a weakly magnetized plasma. The VV and VT angular power spectra are computed for adiabatic initial conditions of the Einstein-Boltzmann hierarchy. Depending upon the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Massimo Giovannini

A new type of simplified cloaks with matched exterior boundaries is proposed. The cloak uses non-magnetic material for the TM polarization and can function with a relatively thin thickness. It is shown that the $zero^{th}$ order scattering…

Optics · Physics 2009-11-13 Wei Yan , Min Yan , Min Qiu

We investigate a bi-layer scheme for circularly polarized infrared thermal radiation. Our approach takes advantage of the strong anisotropy of low-symmetry materials such as $\beta$-Ga$_2$O$_3$ and $\alpha$-MoO$_3$. We numerically report…

We report the room-temperature electroluminescence (EL) with nearly pure circular polarization (CP) from GaAs-based spin-polarized light-emitting diodes (spin-LEDs). External magnetic fields are not used during device operation. There are…

Optics · Physics 2017-07-05 N. Nishizawa , K. Nishibayashi , H. Munekata

We demonstrate that it is possible to confine electromagnetic radiation in cavities that are significantly smaller than the wavelength of the radiation it encapsulates. To this aim, we use the techniques of transformation optics. First, we…

Optics · Physics 2010-09-13 V. Ginis , P. Tassin , C. M. Soukoulis , I. Veretennicoff

We derive macroscopic expressions for the polarization and orbital magnetization of a Chern insulator in its zero-temperature ground state using a previously developed formalism for treating microscopic polarization and magnetization fields…

Mesoscale and Nanoscale Physics · Physics 2023-04-18 Perry T. Mahon , Jason G. Kattan , J. E. Sipe

We demonstrate thin, flexible, metamaterial films with a strong, narrowband, polarization- and angle-insensitive absorption designed for wavelengths near one millimeter. These structures, fabricated by photolithography on a commercially…

Broadband-tunable sources of circularly-polarized light are crucial in fields such as laser science, biomedicine and spectroscopy. Conventional sources rely on nonlinear wavelength conversion and polarization control using standard optical…

Optics · Physics 2019-04-16 S. Davtyan , D. Novoa , Y. Chen , M. H. Frosz , P. St. J. Russell

Observations of cosmic microwave background in the range 10-90 GHz have revealed an anomalous foreground component well correlated with 12 \mum, 60 \mum and 100 \mum emission from interstellar dust. As the recent cross-correlation analysis…

Astrophysics · Physics 2007-05-23 A. Lazarian

Entanglement is a genuine quantum mechanical property and the key resource in currently developed quantum technologies. Sharing this fragile property between superconducting microwave circuits and optical or atomic systems would enable new…

Quantum Physics · Physics 2023-05-26 Rishabh Sahu , Liu Qiu , William Hease , Georg Arnold , Yuri Minoguchi , Peter Rabl , Johannes M. Fink