Results 121 to 130 of about 11,983 (293)

Thermal‐Driven Diode Polarity Switching From Competing Helical Superconducting States in WTe2/α‐Fe2O3 Heterostructures

open access: yesAdvanced Materials, EarlyView.
A Nb‐proximitized Josephson junction based on a WTe2/α‐Fe2O3 heterostructure exhibits a robust superconducting diode effect with programmable polarity. The diode direction can be trained by magnetic fields and switched by temperature cycling, revealing tunable finite‐momentum pairing states and competing superconducting states in symmetry‐broken ...
Enze Zhang   +9 more
wiley   +1 more source

Resistance to Overdoping Allows Over 2000 S cm−1 Conductivity in P(g3BTTT) With Anion‐Exchange Doping

open access: yesAdvanced Materials, EarlyView.
Anion‐exchange doping of conjugated polymers is an effective way to achieve high conductivities. Here, we report over 2000 S cm−1 electrical conductivity for doped P(g3BTTT). In addition, we show that P(g3BTTT) sustains exceptionally high doping levels without any drop in the charge mobility.
Basil Hunger   +14 more
wiley   +1 more source

Phase-conjugate self-organized coherent beam combination

open access: yes, 2013
Recently, the improvement of diode pumping in solid state lasers and the development of double clad fiber lasers have allowed to maintain excellent laser beam quality with single mode fibers. However, the fiber output power if often limited below a power
Damzen, Michael J.   +3 more
core   +1 more source

Directly Emitting a High-Power Phase-Locked Laser Array by an Internal Phase Sensing System

open access: yesIEEE Photonics Journal
In this article, we experimentally presented a compact, packaged high-power coherent fiber laser array based on an internal phase sensing technique. In the experiment, a laser array with three beamlets was utilized for experimental presentation.
Jinhu Long   +7 more
doaj   +1 more source

AI–Guided 4D Printing of Carnivorous Plants–Inspired Microneedles for Accelerated Wound Healing

open access: yesAdvanced Materials, EarlyView.
This work presents an artificial intelligence (AI)‐guided 4D‐printed microneedle platform inspired by carnivorous plants for wound healing. A thermo‐responsive shape memory polymer enables body temperature–triggered self‐coiling for autonomous wound closure.
Hyun Lee   +21 more
wiley   +1 more source

Coherent beam combining of two femtosecond fiber chirped-pulse amplifiers

open access: yes, 2011
International audienceWe demonstrate coherent beam combining of two femtosecond fiber chirped-pulse amplifiers seeded by a common oscillator. Using a feedback loop based on an electro-optic phase modulator, an average power of 7:2W before compression is ...
Druon, Frédéric   +8 more
core  

Compact module for high power coherent beam combining of tapered amplifiers

open access: yes, 2019
International audienceWe describe the design and evaluation of a small footprint interferometer for the coherent beam combining of highbrightness semiconductor amplifiers. The setup relies on off-theshelf commercial devices only.
J. Hamperl   +7 more
core   +1 more source

Theory of electronically phased coherent beam combination without a reference beam

open access: yesOptics Express, 2006
The first theory for two novel coherent beam combination architectures that are the first electronic beam combination architectures that completely eliminate the need for a separate reference beam are presented. Detailed theoretical models are developed and presented for the first time.
openaire   +2 more sources

Phase‐Pure and Size‐Tunable Tin Halide Perovskite Quantum Dots

open access: yesAdvanced Materials, EarlyView.
A trioctylphosphine oxide modulated protocol allows for the synthesis and study of the optical properties of a broad library of tin halide perovskite quantum dots across multiple A‐ and X‐site compositions with precise size tuning while eliminating unwanted 2D phases.
Ole F. Dressler   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy