Results 91 to 100 of about 2,037,224 (301)

Biomass DNA: An Emerging Building Block for Advanced Materials

Advanced Materials, EarlyView.
Biomass DNA is rapidly emerging from its traditional role as a genetic blueprint to serve as a versatile abundant, highly programmable polymeric building block. This review highlights the transformation of macroscopic bulk biomass DNA into next generation of functional materials, spanning from dynamic hydrogels, sustainable bioplastics, and high ...
Yuwei Hu, Itamar Willner, Li Niu
wiley   +1 more source

Ferroionic‐Assisted, Charge‐Driven Polymorphic Phase Engineering for Multilevel Memristive Devices

Advanced Materials, EarlyView.
A CuInP2S6/Mo0.92W0.08Te2 heterostructure enables a gradual semiconductor‐to‐semimetal phase transition through Cu+ ion migration and charge accumulation. The spatially engineered 2H/1T′ mixed phases produce continuously tunable conductance states in a two‐terminal geometry, while suppressing depolarizing fields and stabilizing the metastable 1T′ phase.
Nayeon Kim, Chengqi Wei, Eunji Hwang, Woohyun Cho, Heemyoung Hong, Yongjoon Lee, Daeho Noh, Min Seok Jang, Zhongrui Wang, Heejun Yang   +9 more
wiley   +1 more source

Instabilities Analysis and Stabilization of a Tm:YLF Laser Emitting at 2.3 µm Under Ti:Sapphire and Laser Diode Direct Pumping [PDF]

EPJ Web of Conferences
Passively Q-switched Tm:YLF lasers at 2.3 µm exhibit intrinsic instabilities. Ti:Sapphire pumping reveals an atypical type-I intermittency, whereas diode pumping shows rich additional spatial dynamics with modal instabilities.
Glasset Matthieu, Penn Léo, Dupont Hippolyte, Georges Patrick, Druon Frédéric   +4 more
doaj   +1 more source

Impact of energy-transfer-upconversion on the performance of hybrid Er:YAG lasers

, 2008
Using a hybrid fiber-bulk laser scheme based on Er:YAG, we have achieved ~60 W and ~30 W of continuous-wave output at 1645nm and 1617nm respectively, and Q-switched pulse energies up to ~30 mJ (limited by coating damage). Investigation of various factors
Clarkson, W.A., Kim, J.W., Sahu, J.K., Ji Won Kim, J. K. Sahu, W. A. Clarkson   +5 more
core   +1 more source

Oxygen‐Controlled Structural and Defect Engineering of Magnetron‐Sputtered ZnO Thin Films for Photosensing

Advanced Materials Interfaces, EarlyView.
Zinc oxide thin films are engineered by controlling oxygen flow and nominal partial pressure during growth to tune atomic‐scale defects and crystallographic texture that limit device performance. By balancing competing defects, the films achieve improved preferential c‐axis orientation and enhanced ultraviolet photoresponse.
Julfikar Ali Sarkar, Rupa Jeena, Mohammed Aslam   +2 more
wiley   +1 more source

Passively Q-switched Nd:YAG lasers and their use in UV light generation [PDF]

, 2009
Recent advances in optoelectronics open up possibilities to realize new kinds of solid state lasers that utilize powerful diode lasers as pump sources. A laser medium has often several appropriate transitions that provide conditions for lasing.
Kimmelma, Ossi
core   +1 more source

Passively Q-switched wavelength-tunable 1-μm fiber lasers with tapered-fiber-based black phosphorus saturable absorbers

Results in Physics, 2018
In this paper, we demonstrated passively Q-switched wavelength-tunable 1-μm fiber lasers utilizing few-layer black phosphorus saturable absorbers. The few-layer BP was deposited onto the tapered fibers by an optically driven process.
Huaqing Song, Qi Wang, Dongdong Wang, Li Li   +3 more
doaj   +1 more source

Erbium and Neodymium Glass Lasers Passively Q-switched by Cobalt-activated Spinel Crystals

, 2000
High energy possibilities (up to 270 mJ) of erbium glass lasers passively Q-switched by a new bleaching filter - cobalt-activated spinel crystal are demonstrated.
B. I. Denker, B. I. Galagan, S.E. Sverchkov, V.V. Osiko   +3 more
core   +1 more source

Liquid Metal Resistive Sensing Architectures for Measuring Diaphragm Strain Responses on Obstructed Surfaces

Advanced Materials Technologies, EarlyView.
A liquid metal‐based strain‐sensing architecture to measure the deformation of a circular diaphragm against obstructed surfaces is formulated using finite element modeling and confocal imaging to establish the mechanical framework and is utilized to control diaphragm‐induced confinement on a bead array, as validated by biomolecular loading level ...
Abdullah‐Bin Siddique, Jui‐Hong Weng, Deng‐Kai Yang, Chia‐Fu Chou, Nathan S. Swami   +4 more
wiley   +1 more source

Generation of RF Intensity-Modulated Laser Pulses by Dual-Frequency Injection Seeding

IEEE Photonics Journal, 2018
In order to obtain high peak power RF intensity-modulated pulses for long-distance applications, a Q-switched Nd:YAG laser is injection seeded by a dual-frequency laser signal. The beat note frequency of the dual-frequency laser signal is adjusted to the
Lijun Cheng, Suhui Yang, Changming Zhao, Haiyang Zhang, Bingjie Sun   +4 more
doaj   +1 more source