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We derive the exact solution for the optical conductivity $\sigma(\omega)$ of one hole in the Holstein-t-J model in the framework of dynamical mean-field theory (DMFT). We investigate the magnetic and phonon features associated with polaron…

Strongly Correlated Electrons · Physics 2008-02-07 E. Cappelluti , S. Ciuchi , S. Fratini

New type of plasmonic nanoparticles - silver octopods that can be synthesized with a variety of shapes - have been demonstrated to show versatile optical response using the discrete dipole approximation. The octopods show a complex behavior…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Ivan I. Naumov , Zhiyong Li , Alexander M. Bratkovsky

The involvement of evanescent waves in the near-field regime could greatly enhance the spontaneous thermal radiation, offering a unique opportunity to study nanoscale photon-phonon interaction. However, accurately characterizing this subtle…

Non-equilibrium spin-polarized transport properties of antiferromagnetic stanene nanoribbons are theoretically studied under the combining effect of a normal electric field and linearly polarized irradiation based on the tight-binding model…

Mesoscale and Nanoscale Physics · Physics 2022-10-13 Fatemeh Rahimi , Arash Phirouznia

The invariant form of the hyperfine interaction between multipolar moments and the nuclear spin is derived, and applied to discuss possibilities to identify the antiferro-octupolar (AFO) moments by NMR experiments. The ordered phase of…

Strongly Correlated Electrons · Physics 2009-11-10 Osamu Sakai , Ryousuke Shiina , Hiroyuki Shiba

We propose a new wide-field imaging method that exploits the Localized Surface Plasmon Resonance phenomenon to produce super-resolution images with an optical microscope equipped with a custom design polarization analyzer module. In this…

Instrumentation and Methods for Astrophysics · Physics 2023-10-09 Andrey Alexandrov , Takashi Asada , Fabio Borbone , Valeri Tioukov , Giovanni De Lellis

A number of Anomalous X-ray Pulsars (AXPs) have recently been detected in the optical/IR wavelengths. We use their inferred brightness to place general constraints on any model for this emission within the magnetar framework. We find that…

Astrophysics · Physics 2007-05-23 Feryal Ozel

We study the enhancement of the magneto-optical effect in subdiffraction plasmonic chains. We show that in a periodic chain of the plasmonic nanoparticles embedded in a magneto-optical medium, propagation of a guided mode is accompanied by…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 D. G. Baranov , A. P. Vinogradov , A. A. Lisyansky

Molecular spin systems based on photoexcited triplet pairs formed via singlet fission (SF) are attractive as carriers of quantum information because of their potentially pure and controllable spin polarization, but developing systems that…

Mesoscale and Nanoscale Physics · Physics 2022-11-09 Gajadhar Joshi , Ryan D. Dill , Karl J. Thorley , John E. Anthony , Obadiah G. Reid , Justin C. Johnson

We develop a novel hyperspectral imaging system using structured illumination in an SLM-based Michelson interferometer. In our design, we use a reflective SLM as a mirror in one of the arms of a Michelson interferometer, and scan the…

Optics · Physics 2022-04-25 Amar Deo Chandra , Mintu Karmakar , Dibyendu Nandy , Ayan Banerjee

We present calculations of the optical absorption and electro-absorption spectra of graphene nanoribbons (GNRs) using a $\pi-$electron approach, incorporating long-range Coulomb interactions within the Pariser-Parr-Pople (PPP) model…

Materials Science · Physics 2011-02-14 Kondayya Gundra , Alok Shukla

We propose a scanning magnetic microscope which has a photoluminescence nanoprobe implanted in the tip of an AFM or STM, or NSOM, and exhibits optically detected magnetic resonance (ODMR). The proposed spin microscope has nanoscale lateral…

Quantum Physics · Physics 2009-11-10 Boris M. Chernobrod , Gennady P. Berman

A localized and strong RF magnetic field, created by a magnetic write head, is used to examine the linear electrodynamic properties of a Nb superconducting film. The complex reflection coefficient of the write head held in close proximity…

Superconductivity · Physics 2014-06-06 Tamin Tai , B. G. Ghamsari , Steven M. Anlage

In this letter, we derive an expression for magnetic dipole transitions that is analogous to the Lyddane-Sachs-Teller relation for dielectric polar lattice vibrations. We thereby define transverse and longitudinal optical frequencies at…

Materials Science · Physics 2024-08-09 Viktor Rindert , Vanya Darakchieva , Tapati Sarkar , Mathias Schubert

We use frequency entangled photons, generated via spontaneous parametric down conversion, to measure the broadband spectral response of an array of gold nanoparticles exhibiting Fano-type plasmon resonance. Refractive index sensing of a…

Quantum Physics · Physics 2014-03-27 Dmitry A. Kalashnikov , Zhenying Pan , Arseniy I. Kuznetsov , Leonid A. Krivitsky

Understanding the optical response of a high-kinetic-inductance microwave resonator is crucial for applications ranging from single-photon detection to quantum transduction between microwave and optical domains, which is gaining significant…

Quantum Physics · Physics 2026-01-12 R. Hirotsuru , H. Kurokawa , K. Takaki , H. Terai , H. Kosaka

We propose and demonstrate a spatial partition method for the high-frequency photo-response of superconducting devices correlated with inductive and resistive changes in microwave impedance. Using a laser scanning microscope, we show that…

Superconductivity · Physics 2009-09-14 Alexander P. Zhuravel , Steven M. Anlage , Alexey V. Ustinov

In this paper the angular characteristics of a multimode fiber SPR sensor are theoretically investigated. By separating the contributions of beams incident at different angles, a compact model is presented to predict the shift of the…

Optics · Physics 2015-11-13 Zhixin Tan , Xin Hao , Xuejin Li , Yuzhi Chen , Xueming Hong , Ping Fan

The optical properties of magnetite at room temperature were studied by infrared reflectivity measurements as a function of pressure up to 8 GPa. The optical conductivity spectrum consists of a Drude term, two sharp phonon modes, a…

Strongly Correlated Electrons · Physics 2018-02-02 J. Ebad-Allah , L. Baldassarre , M. Sing , R. Claessen , V. A. M. Brabers , C. A. Kuntscher

We show how the onset of a non-Slater antiferromagnetic ordering in a correlated material can be detected by optical spectroscopy. Using dynamical mean-field theory we identify two distinctive features: The antiferromagnetic ordering is…

Strongly Correlated Electrons · Physics 2012-03-26 C. Taranto , G. Sangiovanni , K. Held , M. Capone , A. Georges , A. Toschi