Results 51 to 60 of about 7,275,136 (257)

Analysis of Free-Space Optics Development [PDF]

, 2017
The article presents state of work in technology of free-space optical communications (Free Space Optics − FSO). Both commercially available optical data links and their further development are described.
Mikołajczyk Janusz, Bugajski Maciej, Piotrowski Józef, Prokopiuk Artur, Bielecki Zbigniew, Wojtas Jacek, Gawron Waldemar, Szabra Dariusz   +7 more
core   +2 more sources

Analysis of Rain Effects on Terrestrial Free Space Optics based on Data Measured in Tropical Climate

International Islamic University Malaysia Engineering Journal, 2012
Free Space Optics (FSO) shows a great alternative as the solution for last mile problem where fiber optics is unavailable due to deployment time and cost constraint.  However, the feasibility of using FSO system as communication link very much depends on
Suriza Ahmad Zabidi, Md. Rafiqul Islam, Wajdi Al-Khateeb, Ahmed Wathik Naji   +3 more
doaj   +1 more source

2 × 20 Gbps - 40 GHz OFDM Ro-FSO transmission with mode division multiplexing [PDF]

Journal of the European Optical Society-Rapid Publications, 2014
Radio-over-Free-Space-Optics (Ro-FSO) is a promising technology for future wireless networks. In this work, we have designed a hybrid orthogonal frequency division multiplexing (OFDM) Ro-FSO system for transmission of two independent channels by mode ...
Amphawan A., Chaudhary S., Chan V.W.S.
doaj   +1 more source

Discerning protein pools by selective staining with self‐labeling tags

FEBS Letters, EarlyView.
Cell surface proteins have an intra‐ and extracellular pool. Combining genetic fusion to self‐labeling tags that can be addressed with small molecule fluorophores allows separating these pools. We highlight recent developments and techniques for state‐of‐the‐art interrogation of cell surface proteins in the complex tissue setting.
Kati Fischermanns, Johannes Broichhagen
wiley   +1 more source

Relay-assisted WDM-FSO System: A Better Solution for Communication under Rain and Haze Weather Conditions

Journal of Telecommunications and Information Technology, 2017
Among various conventional wireless communication systems, Free Space Optics (FSO) may be distinguished as well, which provides a good level security, high data rates, an enormous bandwidth and negligible susceptibility to electromagnetic interference ...
Navneet Dayal, Preeti Singh, Pardeep Kaur   +2 more
doaj   +1 more source

Bit error rate measurement of free space optical communication links under laboratory controlled conditions [PDF]

, 2011
This paper outlines the experimental investigation of the fog effect on the bit error rate (BER) performance of the free space optical (FSO) communication link under a controlled laboratory environment.
Ghassemlooy, Zabih, Gholami, Asghar, Rajbhandari, Sujan, Ijaz, Muhammad, Le Minh, Hoa, Perez Soler, Joaquin   +5 more
core  

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

FEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança, Eline L. Jansen, Jorine M. Eeftens   +2 more
wiley   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

Million-Q free space meta-optical resonator at near-visible wavelengths

Nature Communications
High-quality (Q)-factor optical resonators with extreme temporal coherence are of both technological and fundamental importance in optical metrology, continuous-wave lasing, and semiconductor quantum optics.
Jie Fang, Rui Chen, David Sharp, Enrico M. Renzi, Arnab Manna, Abhinav Kala, Sander A. Mann, Kan Yao, Christopher Munley, Hannah Rarick, Andrew Tang, Sinabu Pumulo, Yuebing Zheng, Vinod M. Menon, Andrea Alù, Arka Majumdar   +15 more
doaj   +1 more source

Limits and security of free-space quantum communications

Physical Review Research, 2021
The study of free-space quantum communications requires tools from quantum information theory, optics, and turbulence theory. Here we combine these tools to bound the ultimate rates for key and entanglement distribution through a free-space link, where ...
Stefano Pirandola
doaj   +1 more source