Results 161 to 170 of about 2,708,251 (409)

Method of stationary interference patterns reading and processing [PDF]

Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2009
Optoelectronic reading system allows to obtain and process the interference pattern image in the Kosters interferometer in the real-time mode and has sufficient resolution. Rms deviation of measuring result is 0,001 mm.
Ilyin V. N., Dubeshko A. V., Mihaevich D. A.   +2 more
doaj  

A survey of radio sources at 3.5-m wavelength [PDF]

, 1959
B. Y. Mills
openalex   +1 more source

Tunable and switchable multi-wavelength dissipative soliton generation in a graphene oxide mode-locked Yb-doped fiber laser.

Optics Express, 2014
We report the generation of tunable single-, switchable and tunable dual-, and stable triple-wavelength dissipative solitons (DSs) in an all-normal-dispersion mode-locked Yb-doped fiber laser based on a graphene-oxide saturable absorber (GOSA) without ...
Shisheng Huang, Yong-gang Wang, P. Yan, Junqing Zhao, Huiquani Li, R. Lin   +5 more
semanticscholar   +1 more source

Advances in Hybrid Icing and Frosting Protection Strategies for Optics, Lens, and Photonics in Cold Environments Using Thin‐Film Acoustic Waves

Advanced Engineering Materials, EarlyView.
This article provides a comprehensive overview of fundamentals and recent advances of transparent thin‐film surface acoustic wave technologies on glass substrates for monitoring and prevention/elimination of fog, ice, and frost. Fogging, icing, or frosting on optical lenses, optics/photonics, windshields, vehicle/airplane windows, and solar panel ...
Hui Ling Ong, Zhangbin Ji, Luke Haworth, Yihao Guo, Jaime del Moral, Stefan Jacob, Ana Borras, Agustin R. Gonzalez‐Elipe, Jikai Zhang, Jian Zhou, Glen McHale, Yong‐Qing Fu   +11 more
wiley   +1 more source

Dimensionless Investigations on Energy Conversion and Analysis of Interlayer Time in Laser‐Based Powder Bed Fusion of Polymers for Polyamide 12 with Nanoadditives and Polypropylene

Advanced Engineering Materials, EarlyView.
This study explores the energy conversion in powder bed fusion of polymers using laser beam for polyamide 12 and polypropylene powders. It combines material and process data, using dimensionless parameters and numerical models, to enable the prediction of suitable printing parameters.
Christian Schlör, Moritz Grünewald, Kevin Popp, Ihsan Murat Kusoglu, Stephan Barcikowski, Stan Gann, Thomas Schuffenhauer, Martin Bastian, Claas Bierwisch, Johannes Rudloff   +9 more
wiley   +1 more source

Evaluation of Burst Loss Rate of an Optical Burst Switching (OBS) Network with Wavelength Conversion Capability [PDF]

Journal of Telecommunications, Volume 2, Issue 1, p102-109, April 2010, 2010
This paper presents a new analytical model for calculating burst loss rate (BLR) in a slotted optical burst switched network. The analytical result leads to a framework which provides guidelines for optical burst switched networks. Wavelength converter is used for burst contention resolution.
arxiv  

Birefringent filter design [PDF]

, 1991
A birefringent filter is provided for tuning the wavelength of a broad band emission laser. The filter comprises thin plates of a birefringent material having thicknesses which are non-unity, integral multiples of the difference between the thicknesses ...
Bair, Clayton H.
core   +1 more source

Angular Diameter Measurements of the Radio Sources Cygnus (19N4A) and Cassiopeia (23N5A) on a Wavelength of 10.7 cm [PDF]

, 1959
Bethany Rowson, A. C. B. Lovell
openalex   +1 more source

A Novel Approach on Rapid Alloy Development of Tool Steels for Laser Powder Bed Fusion by In Situ Alloying

Advanced Engineering Materials, EarlyView.
A novel approach for alloy development in laser powder bed fusion is introduced. Instead of producing massive samples of one composition at a time, prepressed powder bed samples produced from powder mixtures are processed. Guidelines for the selection of precursor powders are developed.
Felix Großwendt, Anna Strauch, Jonathan Lentz, Arne Röttger, Rainer Fechte‐Heinen, Sebastian Weber, Werner Theisen   +6 more
wiley   +1 more source

High-accuracy absolute distance measurement by two-wavelength double heterodyne interferometry with variable synthetic wavelengths [PDF]

arXiv, 2014
We present an absolute distance measurement interferometer based on a two wavelength interferometer and a variable synthetic wavelength technique. The wavelength scanning range was 12 GHz, realized with a phase accuracy of 1.0 m{\lambda} by heterodyne detection at each measurement wavelength.
arxiv