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Colloidal quantum dots (QDs) and their thin-films are increasingly used in electronic and photonic devices replacing traditional bulk semiconductors. However, thermal properties of the QDs are comparatively underexplored relative to device…

The thermal drift of the characteristic wavelength of fiber Bragg gratings (FBGs) photowritten in the core of microstructured fibers (MOFs) is significantly reduced by inserting a liquid of suitable refractive index into their holes. For…

We implanted Fe$^+$ ions in nanodiamond (ND) powder containing negatively charged nitrogen-vacancy (NV-) centers and studied their Raman spectra and optically detected magnetic resonance (ODMR) in various applied magnetic fields with green…

Deviation from perfect conical dispersion in Dirac materials, such as the presence of mass or tilting, enhances control and directionality of electronic transport. To identify these signatures, we analyze the thermal derivative spectra of…

Mesoscale and Nanoscale Physics · Physics 2024-02-22 M. A. Mojarro , R. Carrillo-Bastos , Jesús A. Maytorena

Superconducting Nanowire Single Photon Detector (SNSPD) emerges as a potential candidate in the multiple fields requiring sensitive and fast photodetection. While nanowires of low temperature superconducting detectors are mature with…

Superconductivity · Physics 2024-03-13 Souvik Haldar , Arun Sehrawat , Krishna B. Balasubramanian

In the framework of the TOF Wall laser calibration system of the HARP experiment, a study of time dispersion properties of mono-mode and multi-mode optical fibers in the green band (532 nm) has been carried out. Dispersion less than 4 ps/m…

High Energy Physics - Experiment · Physics 2007-05-23 Fabio Paleari

Here we report a combined study of low-temperature scanning tunneling microscopy (STM) and dynamical mean-field theory (DMFT) on PdCrO$_2$, a delafossite metal with an antiferromagnetic order below ~37.5 K. First, on the CrO$_2$-terminated…

Strongly Correlated Electrons · Physics 2023-09-19 Chenhaoping Wen , Tian Qin , Xuefeng Zhang , Mingxin Zhang , Shiwei Shen , Zhongzheng Yang , Yanpeng Qi , Gang Li , Shichao Yan

We investigate the effects of heterogeneous delays in the coupling of two excitable neural systems. Depending upon the coupling strengths and the time delays in the mutual and self-coupling, the compound system exhibits different types of…

Adaptation and Self-Organizing Systems · Physics 2015-06-05 Anastasiia Panchuk , David P. Rosin , Philipp Hövel , Eckehard Schöll

Scalable, high speed data transfer between cryogenic (0.1-4 K) and room temperature environments is instrumental in a broad range of fields including quantum computing, superconducting electronics, single photon imaging and space-based…

Applied Physics · Physics 2020-02-04 Marc de Cea , Emma E. Wollman , Amir H. Atabaki , Dodd J. Gray , Matthew D. Shaw , Rajeev J. Ram

Time-of-flight measurements are key to study distributed mode coupling and differential mode group delay (DMDG) in multimode fibers (MMFs). However, current approaches using regular photodetectors with limited sensitivity preclude the…

Following a series of similar calculations in simpler non-conformal holographic setups, we determine the quasinormal mode spectrum for an operator dual to a gauge-invariant scalar field within the Improved Holographic QCD framework. At…

High Energy Physics - Phenomenology · Physics 2020-06-04 Timo Alho , Jere Remes , Kimmo Tuominen , Aleksi Vuorinen

We attempt to produce low temperature opacity data incorporating the effects of varied abundances of the elements carbon and nitrogen. For our temperature range of interest, molecules represent the dominant opacity source. Our dataset…

Astrophysics · Physics 2009-11-13 Michael T. Lederer , Bernhard Aringer

We propose and experimentally demonstrate a novel interference fading suppression method for phase-sensitive optical time domain reflectometry (Phi-OTDR) using space-division multiplexed (SDM) pulse probes in few-mode fiber. The SDM probes…

Optics · Physics 2021-05-19 Zhiyong Zhao , Huan Wu , Junhui Hu , Kun Zhu , Yunli Dang , Yaxi Yan , Ming Tang , Chao Lu

The orthogonal time frequency space (OTFS) modulation as a promising signal representation attracts growingcinterest for integrated sensing and communication (ISAC), yet its merits over orthogonal frequency division multiplexing (OFDM)…

Signal Processing · Electrical Eng. & Systems 2023-04-28 Bowen Wang , Jianchi Zhu , Xiaoming She , Peng Chen

An inertial sensor design is proposed in this paper to achieve high sensitivity and large dynamic range in the sub-Hz frequency regime. High acceleration sensitivity is obtained by combining optical cavity readout systems with…

Quantum Physics · Physics 2022-09-23 Yanqi Zhang , Adam Hines , Dalziel Wilson , Felipe Guzman

This study presents a new strategy for achieving ultralow thermal conductivity in nonporous polymer/organic filler hybrids by suppressing heat capacity through tailored atomic vibrations to enhance thermal insulation. Unlike conventional…

Among expanding discoveries of quantum phases in moir\'e superlattices, correlated insulators stand out as both the most stable and most commonly observed. Despite the central importance of these states in moir\'e physics, little is known…

Strongly Correlated Electrons · Physics 2024-06-24 Eric A. Arsenault , Yiliu Li , Birui Yang , Takashi Taniguchi , Kenji Watanabe , James C. Hone , Cory R. Dean , Xiaodong Xu , X. -Y. Zhu

Low-loss nanophotonic resonators have been widely used in fundamental science and applications thanks to their ability to concentrate optical energy. Key for resonator engineering, the total intrinsic loss is easily determined by…

Optics · Physics 2021-02-23 Mingkang Wang , Diego J. Perez-Morelo , Vladimir Aksyuk

Structural properties of the spin chain and ladder compound Sr$_{14}$Cu$_{24}$O$_{41}$ have been studied using diffraction with hard x-rays. Strong incommensurate modulation reflections are observed due to the lattice mismatch of the chain…

Strongly Correlated Electrons · Physics 2007-05-23 M. v. Zimmermann , J. Geck , S. Kiele , R. Klingeler , B. Büchner

Thin films of VO$_2$ on different substrates, Al$_2$O$_3$ and SiO$_2$/Si, have been prepared and characterized from room temperature up to 360 K. From the band structure in the rutile metallic phase and in the monoclinic insulating phase…

Strongly Correlated Electrons · Physics 2016-09-21 Tobias Peterseim , Martin Dressel , Marc Dietrich , Angelika Polity
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