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Absorption cells filled with diatomic iodine are frequently employed as wavelength reference for high-precision stellar radial velocity determination due their long-term stability and low cost. Despite their wide-spread usage in the…

Instrumentation and Methods for Astrophysics · Physics 2018-06-27 V. Perdelwitz , P. Huke

We present a non-invasive technique for measuring the thermal conductivity of fragile and sensitive materials. In the context of planet formation research, the investigation of the thermal conductivity of porous dust aggregates provide…

Earth and Planetary Astrophysics · Physics 2015-03-17 Maya Krause , Jürgen Blum , Yuri V. Skorov , Mario Trieloff

We present a novel method for reconstructing the thermal conductivity coefficient in 1D and 2D heat equations using moving sensors that dynamically traverse the domain to record sparse and noisy temperature measurements. We significantly…

Numerical Analysis · Mathematics 2024-10-31 Guangting Yu , Shiwei Lan , Kookjin Lee , Alex Mahalov

Thermal and photothermal effects play an increasing role at the nanoscale due to the general decrease of thermal conductances and to the increasing role of interfaces. Here we present a non-contact optomechanical analysis of the thermal and…

Ultrafast-optical-pump -- structural-probe measurements, including ultrafast electron and x-ray scattering, provide direct experimental access to the fundamental timescales of atomic motion, and are thus foundational techniques for studying…

While the thermal and electromagnetic properties of plasmonic nanostructures are well understood, nanoscale thermometry still presents an experimental and theoretical challenge. Plasmonic structures can confine electromagnetic energy at the…

Measurements of the resistivity anisotropy can provide crucial information about the electronic structure and scattering processes in anisotropic and low-dimensional materials, but quantitative measurements by conventional means often…

Strongly Correlated Electrons · Physics 2017-04-26 P. Walmsley , I. R. Fisher

We introduce a novel, training-free method for sampling differentiable representations (diffreps) using pretrained diffusion models. Rather than merely mode-seeking, our method achieves sampling by "pulling back" the dynamics of the…

Computer Vision and Pattern Recognition · Computer Science 2024-12-11 Yash Savani , Marc Finzi , J. Zico Kolter

Cryosurgery employs a safe and relatively simple technique of exposure and is an advantageous and highly rated method. For its effective application, it is necessary to control both the volume of the expanding freezing zone and volumetric…

The simplest version of the method of detection of single molecular scattering basing on the polarization measurements of the twilight sky background by all-sky cameras is considered. The method can be used during the transitive twilight…

Atmospheric and Oceanic Physics · Physics 2018-08-01 Oleg S. Ugolnikov , Igor A. Maslov , Boris V. Kozelov

The state of a sample during crystal growth from high temperature solutions is not accessible in conventional furnace systems. An optimization of the growth parameters often requires arduous trial and error procedures in particular in case…

Materials Science · Physics 2019-10-02 Andreas G. F. Schneider , Paul Sass , Robert Schöndube , Anton Jesche

In digital holography, the coherent scattered light fields can be reconstructed volumetrically. By refocusing the fields to the sample planes, absorption and phase-shift profiles of sparsely distributed samples can be simultaneously…

Optics · Physics 2023-02-10 Jian Zhao , Yuzhuo Wang , Xing Huang , Saijun Wu

Self-calibrating and dual-slope measurements have been used in the field of diffuse optics for robust assessment of absolute values or temporal changes in the optical properties of highly scattering media and biological tissue. These…

Optics · Physics 2025-05-05 Giles Blaney , Angelo Sassaroli , Tapan Das , Sergio Fantini

While high-throughput (HT) computations have streamlined the discovery of promising new materials, experimental characterization remains challenging and time-consuming. One significant bottleneck is the lack of an HT thermal…

Applied Physics · Physics 2024-04-18 Dihui Wang , Heng Ban , Puqing Jiang

We present high-resolution thermal diffusivity measurements on several near optimally doped electron- and hole-doped cuprate systems in a temperature range that passes through the Mott-Ioffe-Regel limit, above which the quasiparticle…

Strongly Correlated Electrons · Physics 2020-01-01 Jiecheng Zhang , Erik D. Kountz , Eli M. Levenson-Falk , Dojoon Song , Richard L. Greene , Aharon Kapitulnik

Atomically thin materials such as graphene and semiconducting transition metal dichalcogenides (TMDCs) have attracted extensive interest in recent years, motivating investigation into multiple properties. In this work, we demonstrate a…

Materials Science · Physics 2015-09-24 Xian Zhang , Dezheng Sun , Yilei Li , Gwan-Hyoung Lee , Xu Cui , Daniel Chenet , Yumeng You , Tony Heinz , James Hone

Measurements of the deflection induced by thermal noise have been performed on a rectangular atomic force microscope cantilever in air. The detection method, based on polarization interferometry, can achieve a resolution of 1E-14 m/rtHz in…

Statistical Mechanics · Physics 2009-11-17 Pierdomenico Paolino , Bruno Tiribilli , Ludovic Bellon

Thermal properties of solid-state materials are a fundamental topic of study with important practical implications. For example, anisotropic displacement parameters (ADPs) are routinely used in physics, chemistry, and crystallography to…

Materials Science · Physics 2016-12-28 Janine George , Volker L. Deringer , Ai Wang , Paul Müller , Ulli Englert , Richard Dronskowski

Degenerate pump-probe reflectivity experiments have been performed on a single crystal of bismuth telluride (Bi$_2$Te$_3$) as a function of sample temperature (3K to 296K) and pump intensity using $\sim$ 50 femtosecond laser pulses with…

Materials Science · Physics 2015-05-20 N. Kamaraju , Sunil Kumar , A. K. Sood

If confocal microscopy is an ubiquitous tool in life science, its applications in chemistry and materials science are still, in comparison, very limited. Of particular interest in these domains is the use of confocal microscopy to…

Soft Condensed Matter · Physics 2017-12-25 Dmytro Dedovets , Cécile Monteux , Sylvain Deville
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