Results 111 to 120 of about 27,734 (298)

Investigation of laser dynamics, modulation and control by means of intra-cavity time varying perturbation [PDF]

open access: yes
Work continued on a number of projects aimed at the generation of tunable visible, infrared, and ultraviolet light; and on the control of this light by means of novel mode-locking and modulation techniques.
Harris, S. E.
core   +4 more sources

Fabrication of nitrogen-hyperdoped silicon by high-pressure gas immersion excimer laser doping

open access: yesScientific Reports
In recent years, research on hyperdoped semiconductors has accelerated, displaying dopant concentrations far exceeding solubility limits to surpass the limitations of conventionally doped materials.
Josh W. Barkby   +7 more
doaj   +1 more source

A PLP‐SEC Investigation of Di(Ethylene Glycol) Methyl Ether Methacrylate Radical Polymerization Propagation Kinetics in Solution

open access: yesMacromolecular Reaction Engineering, EarlyView.
The propagation rate coefficient of di(ethylene glycol) methyl ether methacrylate exhibits the same temperature dependency but is a factor of 12 higher in aqueous solution compared to bulk. Smaller increases are observed in ethanol and ethanol/water mixtures, with the value of the rate coefficient decreasing as the monomer concentration in solution is ...
Fatemeh Salarhosseini   +1 more
wiley   +1 more source

Intrinsically Chiral Excimers: Water‐Compatible Trityl‐Based Nanoparticles as Tailored Dual Emitters of Circularly Polarized Luminescence in the Vis or NIR Regions

open access: yesSmall, EarlyView.
Dual circularly polarized luminescence (CPL) is demonstrated in pioneering metal‐free organic nanoparticles (ONPs) from a brominated trityl radical derivative. CPL activity in the Vis or NIR regions in aqueous environments is achieved by tayloring the content of radical enantiomers in ONPs, thanks to the generation of intrinsically chiral excimers ...
Giovanni Schievano   +9 more
wiley   +1 more source

Effect of Facial Encumbrance on Excimer Formation and Charge Resonance Stabilization in Model Bichromophoric Assemblies [PDF]

open access: yes, 2017
Excimer formation and charge resonance stabilization in covalently linked bichromophoric systems with flexible spacers are important processes relevant to biochemistry and functional materials.
Uhler, Brandon   +5 more
core   +1 more source

Fast Switching and High Polarization in Ferroelectric Hf0.5Zr0.5O2 Films

open access: yesSmall Science, EarlyView.
Ferroelectric Hf0.5Zr0.5O2 thin films are grown under tuned redox conditions to simultaneously achieve high polarization and fast switching. Control of defect dipoles and internal fields enables stable domain wall motion without compromising performance. This work provides a pathway for designing fast and energy‐efficient ferroelectric devices.
Faizan Ali   +3 more
wiley   +1 more source

Fabrication of (111)-Faced Single-Crystal Diamond Plates by Laser Nucleated Cleaving

open access: yes, 2017
Single-crystal diamond plates with surfaces oriented in a (111) crystal plane are required for high-performance solid-state device platforms ranging from power electronics to quantum information processing architectures.
Bassett, Lee C.   +3 more
core   +1 more source

Laser Micromachining for Bioelectronics: Past, Present, and Future

open access: yesSmall Methods, EarlyView.
Lasers offer a straightforward, flexible, and versatile route to the manufacture of bioelectronic devices, with distinct advantages over alternatives such as photolithography and printing. The key aspects of a laser when considering their use in bioelectronics fabrication are discussed in this review, and the development of laser micromachining within ...
J. G. Troughton, C. M. Proctor
wiley   +1 more source

Treatment of moderate-to-high hyperopia with the WaveLight Allegretto 400 and EX500 excimer laser systems

open access: yesClinical Ophthalmology, 2017
Manoj Motwani,1 Ronald Pei1,21Motwani LASIK Institute, San Diego, 2Precision Outcome Consultants, Fresno, CA, USAPurpose: To evaluate the efficacy of treating patients with +3.00 diopters (D) to +6.00 D of hyperopia via laser-assisted in situ ...
Motwani M, Pei R
doaj  

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