Results 91 to 100 of about 2,385,918 (340)

Automated system of transmission of data on the state of critical infrastructure objects with the use of modern information and telecommunications [PDF]

, 2022
S.M. Chumachenko, A.S. Partalian, A.A. Moshensky, M.L. Sukalo, L.D. Filatova   +4 more
openalex   +1 more source

3D Printed Optics Achieves Broadband Structured Light

Advanced Optical Materials, EarlyView.
The arbitrary creation of structured light often requires complex design and fabrication steps and is largely limited to single wavelength. By leveraging off the toolkit for digital holograms, how complex amplitude modulation can be implemented as 3D printed optics in a manner that is broadband is shown, for the creation of multiwavelength forms ...
Leerin Perumal, Stefan Hengsbach, Moslem Mahdavifar, Jan Korvink, Andrew Forbes   +4 more
wiley   +1 more source

Policies and Economics of Digital Multimedia Transmission [PDF]

IJCSI, Volume 7, Issue 2, March 2010, 2010
There are different Standards of digital multimedia transmission, for example DVB in Europe and ISDB in Japan and DMB in Korea, with different delivery system (example MPEG-2, MPEG-4).This paper describe an overview of Digital Multimedia Transmission (DMT) technologies. The economic aspects of digital content & software solution industry as a strategic
arxiv  

Femtosecond Direct Laser Writing of Conductive and Electrically Switchable PEDOT:PSS Optical Nanostructures

Advanced Optical Materials, EarlyView.
Commercial femtosecond direct laser writing (Nanoscribe GT) is utilized to fabricate electrically switchable PEDOT:PSS nanostructures on ITO‐coated glass substrates, as well as underneath and on top of 3D‐printed structures and demonstrates beam‐switching at 1550 nm. Abstract Microscale three‐dimensional (3D)‐printing, with its remarkable precision and
Dominik Ludescher, Pavel Ruchka, Leander Siegle, Yanzhe Huang, Philipp Flad, Monika Ubl, Sabine Ludwigs, Mario Hentschel, Harald Giessen   +8 more
wiley   +1 more source

Enabling low Threshold Laser Through an Asymmetric Tetramer Metasurface Harnessing Polarization‐Independent Quasi‐BICs

Advanced Optical Materials, EarlyView.
Light impinging from the left on a metasurface composed by active material. The metasurface shows asymmetric configuration through the non‐uniform presence of holes. The forming quasi‐BICs modes are exploited for lasing purposes. Abstract It is proposed and numerically demonstrated a novel strategy to achieve lasing generation from a dual‐band symmetry‐
Tao Wang, Weizheng Di, W. E. I. Sha, Remo Proietti Zaccaria   +3 more
wiley   +1 more source

Perturbation of Transmission Matrices in Nonlinear Random Media

Annals of Physics, 2019
Random media with tailored optical properties are attracting burgeoning interest for applications in imaging, biophysics, energy, nanomedicine, spectroscopy, cryptography, and telecommunications.
A. Fleming, C. Conti, A. Di Falco
semanticscholar   +1 more source

High Fidelity Waveguides Through Vitreous Media Recomposition for Next Generation Photonic Devices

Advanced Optical Materials, EarlyView.
A newly designed aluminosilicate glass enables the fabrication of femtosecond laser‐written optical waveguides with ultra‐low propagation losses of −0.020 dB cm−1 at 1310 nm and −0.037 dB cm−1 at 1550 nm. Raman, Brillouin, and electron microscopy analyses reveal the mechanisms behind refractive index modifications, highlighting the role of glass ...
T Toney Fernandez, Andrew Ross‐Adams, Mark Bakovic, Jens Ulrich Thomas, Oliver Hochrein, Hadi Mahmodi, Irina Kabakova, Karen Privat, Michael Withford, Simon Gross   +9 more
wiley   +1 more source

Basic functions of telecommunication channel elements for successful information transmission [PDF]

Vojnotehnicki glasnik, 2011
The challenge in the field of multimedia telecommunications is an attempt to integrate texts, sound, images and videos coherently and consistently and to ensure simplicity and interactivity of operation. In order to make the proposed multimedia applications acceptable to end-users, the quality of transmission through the network and message ...
openaire   +3 more sources

Curcuminoid Derivatives with a Donor‐Acceptor‐Donor Architecture: an Outstanding Platform for Highly‐Efficient Near‐Infrared Electroluminescence and Amplified Spontaneous Emission

Advanced Optical Materials, EarlyView.
Curcuminoid boron difluoride dyes containing triphenylamine units are prepared and their photophysical and electrochemical properties are investigated. These new light‐emitting dyes are used in organic light‐emitting diodes (OLEDs) emitting at 800 nm with 1% external quantum efficiency, and show low threshold amplified spontaneous emission in thin ...
Anthony D'Aléo, Xun Tang, Dae‐Hyeon Kim, Danillo Valverde, Elena Zaborova, Gabriel Canard, Arnaud Brosseau, Loïc Mager, Gilles Clavier, Chihaya Adachi, Yoann Olivier, Jean‐Charles Ribierre   +11 more
wiley   +1 more source

Demonstration of a Graphene Adjustable‐Barriers Phototransistor with Tunable Ultra‐High Responsivity

Advanced Optical Materials, EarlyView.
A novel graphene‐based phototransistor with a tunable ultra‐high responsivity of 1.7 x 107 AW−1 has been demonstrated. Due to the selected material combination of amorphous silicon, graphene and n‐germanium, the device is potentially capable of dual‐band detection in the VIS‐IR range.
Carsten Strobel, Carlos A. Chavarin, Martin Knaut, Christian Wenger, André Heinzig, Thomas Mikolajick   +5 more
wiley   +1 more source