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Evaluating impact-induced damage in composite materials under varying temperature conditions is essential for ensuring structural integrity and reliable performance in aerospace, polar, and other extreme-environment applications. As matrix…

The methodology for a heterodyned laser-induced transient thermal grating technique for non-contact, non-destructive measurements of thermal transport in opaque material is presented. Phase-controlled heterodyne detection allows us to…

Two-color (2C) pyrometry has long been used for flame temperature and soot concentration studies and is now becoming more widely used to measure surface temperatures of burning materials. With the obvious advantage of being a contact-free…

应用物理 · 物理学 2022-03-21 Tanja Pelzmann , Fabien Dupont , Benjamin Sauté , Étienne Robert

We present a systematic methodology for realizing accurate asymmetric all-angle transmission in nonlocal metasurfaces. As a representative example, we derive closed-form susceptibility conditions for exact first-order spatial…

应用物理 · 物理学 2026-02-10 Amit Shaham , Ariel Epstein

The particle representation model (PRM) and interacting particle representation model (IPRM) describe homogeneous turbulence through orientation-conditioned structural states. In their original form, the conditional state is organized by…

流体动力学 · 物理学 2026-05-19 Stavros C. Kassinos

Laser photocoagulation is one of the most frequently used treatment approaches for retinal diseases such as diabetic retinopathy and macular edema. The use of model-based control, such as Model Predictive Control (MPC), enhances a safe and…

系统与控制 · 电气工程与系统科学 2022-03-01 Manuel Schaller , Mitsuru Wilson , Viktoria Kleyman , Mario Mordmüller , Ralf Brinkmann , Matthias A. Müller , Karl Worthmann

Accurate knowledge of temperatures in power semiconductor modules is crucial for proper thermal management of such devices. Precise prediction of temperatures allows to operate the system at the physical limit of the device avoiding…

信号处理 · 电气工程与系统科学 2020-06-15 Jakub Ševčík , Václav Šmídl , Ondřej Straka

Kirchhoff's law of thermal radiation imposes a constraint on photon-based energy harvesting processes since part of the incident energy flux is inevitably emitted back to the source. By breaking the reciprocity of the system, it is possible…

光学 · 物理学 2021-08-19 Yubin Park , Viktar S. Asadchy , Bo Zhao , Cheng Guo , Jiahui Wang , Shanhui Fan

In the field of radiowave detection, enlarging the receiver aperture to enhance the amount of light detected is essential for greater scientific achievements. One challenge in using radio transmittable apertures is keeping the detectors…

天体物理仪器与方法 · 物理学 2014-07-21 J. Choi , H. Ishitsuka , S. Mima , S. Oguri , K. Takahashi , O. Tajima

Optical properties of a prismatic transparent plate and its effects on thermal radiation heat transfer are studied. A 3D ray-tracing numerical method is used to prove the bi-transmittance property of the prismatic sheet when it is exposed…

应用物理 · 物理学 2018-08-14 Afzal Raghavi

In this paper, we address non-radiating and cloaking problems exploiting the surface equivalence principle, by imposing at any arbitrary boundary the control of the admittance discontinuity between the overall object (with or without cloak)…

经典物理 · 物理学 2017-07-05 Giuseppe Labate , Andrea Alù , Ladislau Matekovits

Intelligent reflecting surface (IRS) that enables the control of the wireless propagation environment has been looked upon as a promising technology for boosting the spectrum and energy efficiency in future wireless communication systems.…

信号处理 · 电气工程与系统科学 2020-02-26 Samith Abeywickrama , Rui Zhang , Chau Yuen

Thermal annealing is a widely used thin-film processing technique for modifying interfacial optical losses and electronic scattering in plasmonic materials. Here, we investigate how thermal annealing of gold thin films deposited on silicon…

光学 · 物理学 2026-01-09 A. Márquez , R. Esquivel-Sirvent

The thermal diffusivity measurement of impacted composites using pulsed methods presents an ill-posed inverse problem influenced by multiple factors such as sample thickness, cooling duration, and excitation energy. In this study, a novel…

We investigate the influence of chirality on the PT-symmetric and PT-broken phase of PT-symmetric chiral systems. Starting from the point that transverse magnetic (TM) and transverse electric (TE) waves have different exceptional points, we…

Thermal imaging and sensing technologies offer critical information about our thermally radiant world, and in recent years, have seen dramatic increases in usage for a range of applications. However, the cost and technical finesse of…

光学 · 物理学 2021-06-29 Jyotirmoy Mandal , John Brewer , Sagar Mandal , Aaswath P. Raman

We propose and analyse a nonlinear optical apparatus in which the direction of asymmetric steering is controllable within the apparatus, rather than by adding noise to measurements. Using a nondegenerate parametric oscillator with an…

量子物理 · 物理学 2017-10-25 M. K. Olsen

We present theoretical and numerical analysis of a plasmonic-dielectric hybrid system for symmetric and asymmetric coupling between silver cut-wire pairs and silicon grating waveguide with periodic grooves. The results show that both…

光学 · 物理学 2015-05-20 Bin Tang , Lei Dai , Chun Jiang

In recent years, intense efforts have been devoted to studying how nonlinear effects can be used to shape the transverse beam distribution by means of an adiabatic crossing of nonlinear resonances. By this approach, it is possible to split…

加速器物理 · 物理学 2023-02-15 A. Bazzani , F. Capoani , M. Giovannozzi , R. Tomàs

Simultaneously manipulating multiple physical fields plays an important role in the increasingly complex integrated systems, aerospace equipment, biochemical productions, etc. For on-chip systems with high integration level (e.g.,…

应用物理 · 物理学 2024-05-01 Yichao Liu , Xiaomin Ma , Kun Chao , Fei Sun , Zihao Chen , Jinyuan Shan , Hanchuan Chen , Gang Zhao , Shaojie Chen