Results 81 to 90 of about 6,439,042 (312)

MBE-grown 1550 nm wafer-fused VCSELs for large data rate and energy efficient communication

JPhys Photonics
We report on the progress made in the development of 1550 nm vertical-cavity surface-emitting lasers (VCSELs) for data transmission applications. These lasers were grown using molecular beam epitaxy and manufactured through wafer fusion.
Georgiy Sapunov, Ilya Derebezov, Sergey Blokhin, Iakov Kovach, Si-Cong Tian, Mansoor A Maricar, Leonid Karachinsky, Innokenty Novikov, Andrey Babichev, Andrey Gladyshev, Anton Egorov, Dieter Bimberg   +11 more
doaj   +1 more source

Single VDTA Based Dual Mode Single Input Multioutput Biquad Filter

Journal of Engineering, 2016
This paper presents a dual mode, single input multioutput (SIMO) biquad filter configuration using single voltage differencing transconductance amplifier (VDTA), three capacitors, and a grounded resistor.
Rajeshwari Pandey, Neeta Pandey, Navin Singhal   +2 more
doaj   +1 more source

Single-mode fiber length for wavefront filtering

, 2008
Stellar nulling interferometry offers the possibility of direct imaging of extrasolar planets necessary for the detection of extra-terrestrial life. Achieving optimum performance from the interferometers requires that the wavefronts of light reaching the
Dasgupta, Sonali, Broderick, N.G.R., Richardson, D.J.   +2 more
core  

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

1.06 µm picosecond pulsed, normal dispersion pumping for generating efficient broadband infrared supercontinuum in meter-length single-mode tellurite holey fiber with high Raman gain coefficient

, 2011
We investigate efficient broadband infrared supercontinuum generation in meter-length single-mode small-core tellurite holey fiber. The fiber is pumped by 1.06µm picosecond pulses in the normal dispersion region.
Shi, Jindan, Feng, Xian, Teh, Peh Siong, Chen, Kangkang, Horak, Peter, Ibsen, Morten, Richardson, David J., Alam, Shaif-ul, Loh, Wei H.   +8 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

120 W Efficient Single Frequency Amplification Based on Wide Tunable 1018 nm DBR Seed Source

IEEE Photonics Journal
High-power, widely tunable 1018 nm single-frequency fiber lasers and their harmonics play a crucial role in Rydberg microwave measurement applications. This study focuses on the development of a high-power 1018 nm single-frequency narrow-linewidth fiber ...
Pan Li, Linfeng Li, Kaiming Cao, Ruihong Gao, Heshan Liu, Meng Shi, Ziren Luo   +6 more
doaj   +1 more source

High Purcell factor photonic crystal cavities for single photon sources [PDF]

, 2006
Enhancement of spontaneous emission is of crucial importance in the design of high efficiency single photon sources. This can be achieved by creating defect cavities with both high Q and small effective mode volume, which results in a high Purcell factor.
Cryan, MJ, Rarity, JG, Sanchis Martinez, L, Singh, V, Ho, Y-LD   +4 more
core   +1 more source

Wang-Single-mode sapphire fiber Bragg grating Fig2c.csv

, 2022
"Single-mode sapphire fiber Bragg grating" Data File 1 (Underlying data for Figure 2c) Experimental measured dimensions of the laser-induced single-tracks using different pulse energies and repetition ...
Frank Payne (11688151), Patrick Salter (5938628), Stephen Morris (324510), Adrian Shipley (11688154), Julian Fells (5938625), Mohan Wang (4609120), Martin Booth (3957650)   +6 more
core   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source