Results 61 to 70 of about 88,499 (309)

Compact Optical Generation of Microwave Signals Using a Monolithic Quantum Dot Passively Mode-Locked Laser

open access: yesIEEE Photonics Journal, 2009
Microwave signal generation from the saturable absorber of a monolithic quantum dot passively mode-locked laser is presented. We observe a differential efficiency of 33% that measures the optical-to-RF power conversion.
C.-Y. Lin   +4 more
doaj   +1 more source

Purification and preparation of Marchantia polymorpha Auxin Response Factor 2 for phase separation studies

open access: yesFEBS Open Bio, EarlyView.
We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen   +5 more
wiley   +1 more source

High-power passively mode-locked Nd:YVO4 laser using SWCNT saturable absorber fabricated by dip coating method

open access: yes, 2015
Passive mode locked laser is typically achieved by the Semiconductor Saturable absorber Mirror, SESAM, saturable absorber, which is produced by expensive and complicated metal organic chemical vapor deposition method.
Ling Zhang   +15 more
core   +1 more source

Recent Advances in Two-Dimensional Metallic MXenes as High-Performance Saturable Absorbers

open access: yesNanomaterials
Passively mode-locked lasers, as essential tools for generating ultrashort pulses, have found widespread applications in industrial manufacturing, optical communications, biomedical imaging, and fundamental scientific research.
Xin Xiong   +5 more
doaj   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

open access: yesFEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey   +4 more
wiley   +1 more source

CNOIDAL WAVE FORMATION IN A LASER SYSTEM WITH ACTIVE SATURABLE ABSORBER [PDF]

open access: yes, 2011
"We demonstrate the cnoidal wave formation in a two-laser system with a saturable absorber inside the cavity of one of the lasers. The other laser is used to activate the saturable absorber in order to control the pulse shape, width, intensity and ...
MARIO CESAR WILSON HERRAN
core  

Numerical Studies of Optical Bistability of Absorptive Type

open access: yesCommunications, 2011
Theoretical analysis is presented to search for the purely absorptive optical bistability in a Fabry-Perot cavity filled with a saturable absorber. A simple model of singlet absorption is used on numerically solving the relationships between the input ...
Eliska Jurisova, Jarmila Mullerova
doaj   +1 more source

Large-scale monolayer molybdenum disulfide (MoS2) for mid-infrared photonics

open access: yesNanophotonics, 2020
Mid-infrared (MIR) photonics has attracted tremendous interest because of its broad applications at atmospheric windows. In this work, we report high-performance MIR photonics based on large-scale and good-quality monolayer molybdenum disulfide (MoS2 ...
Pan Han   +8 more
doaj   +1 more source

Identification and characterization of a gene conferring stress resistance in Escherichia coli and cyanobacteria

open access: yesFEBS Open Bio, EarlyView.
Functional screening identified PcSyn14890, a cyanobacteria‐specific protein that enhances growth and stress resistance in E. coli and Synechocystis PCC6803. Although we expected it to function as a molecular chaperone, it was unable to protect against thermal aggregation of GAPDH.
Akiyo Yamada   +7 more
wiley   +1 more source

Passively Mode-Locked Ytterbium-Doped Fiber Laser Based on SnS2 as Saturable Absorber

open access: yesIEEE Photonics Journal, 2017
In this letter, tin disulfide (SnS2) nanosheets were employed as saturable absorber for obtaining passively mode-locked Yb-doped fiber laser. A SnS2-PVA film was fabricated by incorporating the SnS2 nanosheets with the polyvinyl alcohol (PVA), Based on ...
Jian Li   +5 more
doaj   +1 more source

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