Results 61 to 70 of about 3,249,101 (332)

A Hoard from the Uvek Fortified Site: an Accidental Find of 1994

Поволжская археология, 2013
A hoard of pottery, metal lamps, mirrors and a lampad, accidentally discovered on the Uvek settlement site in 1994 is made public. The pottery items are represented by three Qashan pottery bowls with underglaze painting and a red-clay jug. The two bronze
Kubankin Dmitriy A. , Sergeeva Oksana V.   +1 more
doaj   +1 more source

Sub-Nanometer Accuracy Combination Processing Technology for Nickel–Phosphorus Modified Surfaces Based on Aluminum Reflector Mirror

Micromachines, 2022
The surface of metal mirrors is often polished by electroless coating with a Ni–P modified layer after single-point diamond turning. In practice, however, improvements in mirror quality are closely related to the polishing environment, polishing medium ...
Hao Hu, Chao Xu, Tao Lai, Qilin Yang, Xiaoqiang Peng, Junfeng Liu, Yupeng Xiong, Jia Qiu   +7 more
doaj   +1 more source

Near field and far field scattering of surface plasmon polaritons by one-dimensional surface defects

, 1999
A rigorous formulation for the scattering of surface plasmon polaritons (SPP) from a one-dimensional surface defect of any shape that yields the electromagnetic field in the vacuum half-space above the vacuum-metal interface is developed by the use of an
Maradudin, A. A., Sanchez-Gil, J. A.
core   +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

Ultra-Broadband Mirrors for Ultrafast and Ultra-Intense Laser Sciences

Ultrafast Science
Ultra-broadband near-zero-dispersion mirrors (UbZdMs) are the essential component for pulse reflection and beam transport in ultra-intense ultrafast lasers.
Yu Chen, Zhaoyang Li, Yanzhi Wang, Feng Zhu, Chang Liu, Botong Liu, Yexin Zhu, Jianguo Wang, Xinliang Wang, Yesheng Lu, Jian Sun, Yuxin Leng, Ruxin Li, Jianda Shao   +13 more
doaj   +1 more source

Cavity-Volume Scaling Law of Quantum-Dot Metal-Cavity Surface-Emitting Microlasers

IEEE Photonics Journal, 2012
Quantum-dot (QD) metal-cavity surface-emitting microlasers are designed, fabricated, and characterized for various sizes of cavity volume for both lateral and vertical confinements.
Akira Matsudaira, Chien-Yao Lu, Meng Zhang, Shun Lien Chuang, Erik Stock, Dieter Bimberg   +5 more
doaj   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

Evidence for competition modes in a partially guided far-infrared free-electron laser

Physical Review Special Topics. Accelerators and Beams, 2014
The infrared free-electron laser (FEL) offers a large tunability since the FEL gain remains high throughout the infrared spectral range, and the reflectivity of metal mirrors remains also close to unity.
J.-M. Ortega, J.-P. Berthet, F. Glotin, R. Prazeres   +3 more
doaj   +1 more source

Integrated Optoelectronic Position Sensor for Scanning Micromirrors

Sensors, 2018
Scanning micromirrors have been used in a wide range of areas, but many of them do not have position sensing built in, which significantly limits their application space.
Xiang Cheng, Xinglin Sun, Yan Liu, Lijun Zhu, Xiaoyang Zhang, Liang Zhou, Huikai Xie   +6 more
doaj   +1 more source

Extended range X-ray telescope [PDF]

, 1981
An X-ray telescope system is described which is comprised of a tubular mount having a collecting region remote from the one axial end. A soft X-ray/XUV subsystem associated with the collecting region directs only relatively soft, near on-axis X-rays/XUV ...
Hoover, R. B.
core   +1 more source