Results 31 to 40 of about 171,689 (340)

Analytical solutions of photo-thermo-elastic waves in a non-homogenous semiconducting material

Results in Physics, 2018
In the present paper, the wave propagation on non-homogenous semiconductor through photo-thermal process has been studied by using the theory of coupled plasma and thermoelastic wave.
Aatef Hobiny, Ibrahim A. Abbas
doaj   +1 more source

Response of electromagnetic and Thomson effect of semiconductor medium due to laser pulses and thermal memories during photothermal excitation

Results in Physics, 2020
In this article, the novel mathematical model under the effect of Thomson heating of a semi-infinite semiconductor elastic medium is expressed. The thermoelasticity theory is applied in the presence of magnetic field when the medium illuminated by a ...
Kh. Lotfy, W. Hassan, A.A. El-Bary, Mona A. Kadry   +3 more
doaj   +1 more source

The two-temperature effect on a semiconducting thermoelastic solid cylinder based on the modified Moore – Gibson – Thompson heat transfer

St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2023
This study introduces a new modified Moore – Gibson – Thompson Photo-Thermal (MGTPT) theory with two temperatures for semiconductor material. The photo-thermoelastic effects has been investigated in an infinitely constrained semiconducting solid cylinder
Kaur Iqbal, Singh Kulvinder
doaj   +1 more source

Au Nanoparticles (NPs) Decorated Co Doped ZnO Semiconductor (Co₄₀₀-ZnO/Au) Nanocomposites for Novel SERS Substrates

Biosensors, 2022
Au nanoparticles were decorated on the surface of Co-doped ZnO with a certain ratio of Co2+/Co3+ to obtain a novel semiconductor-metal composite. The optimal substrate, designated as Co400-ZnO/Au, is beneficial to the promotion of separation efficiency ...
Yan Zhai, Xiaoyu Zhao, Zhiyuan Ma, Xiaoyu Guo, Ying Wen, Haifeng Yang   +5 more
doaj   +1 more source

Pulsed exposure mode of the 445 nm semiconductor laser in phonosurgery: an experimental study

Biomedical Photonics, 2023
The study presents the results of an experimental study devoted to the choice of the most optimal mode of pulsed contact laser exposure of semiconductor laser with a wavelength of 445 nm in phonosurgery, which implies maximum preservation of anatomically
M. A. Ryabova, L. B. Mitrofanova, M. Y. Ulupov, V. A. Stepanova, K. A. Sterkhova   +4 more
doaj   +1 more source

The Surface Photogalvanic and Photon Drag Effects in Ag/Pd Metal-Semiconductor Nanocomposite

Nanomaterials, 2021
We performed the investigation of the polarization-sensitive photocurrent generated in silver-palladium metal-semiconductor nanocomposite films under irradiation with nanosecond laser pulses at the wavelength of 2600 nm.
Aleksandr S. Saushin, Gennady M. Mikheev, Viatcheslav V. Vanyukov, Yuri P. Svirko   +3 more
doaj   +1 more source

Calibration Method for Industrial Robots Based on the Principle of Perigon Error Close

IEEE Access, 2022
For the problem that the self-error of industrial robot calibration device has influence on calibration accuracy, a calibration method of industrial robots based on the principle of Perigon Error Close is proposed.
Xirui Li, Enzheng Zhang, Xiujun Fang, Bin Zhai   +3 more
doaj   +1 more source

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

Advanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu, Jochen Vanderspikken, Paola Mantegazza, Stefania Moro, Mouna Hamid, Sigurd Mertens, Niko Van den Brande, Laurence Lutsen, Vincent Lemaur, David Beljonne, Giovanni Costantini, Koen Vandewal, Bruno Van Mele, Wouter Maes, Bart Goderis   +14 more
wiley   +1 more source

Closed Loop Control of Melt Pool Width in Laser Directed Energy Deposition Process Based on PSO-LQR

IEEE Access, 2023
A closed-loop controller was proposed to adjust the laser power to maintain melt pool stability based on the linear quadratic regulator (LQR) control theory.
Liguo Miao, Fei Xing, Yuanxin Chai
doaj   +1 more source

Toward a Feedback-Insensitive Semiconductor Laser

IEEE Journal of Selected Topics in Quantum Electronics, 2019
We present a route toward design and fabrication of a conceptually new type of optical feedback insensitive integrated semiconductor ring laser with a weak optical isolator included in the ring.
D. Lenstra, T. V. van Schaijk, K. Williams   +2 more
semanticscholar   +1 more source