Results 81 to 90 of about 1,168,263 (300)

Generation of transform-limited picosecond pulses at 1.0 µm from a gain switched semiconductor laser diode

, 2013
We report the generation of short, transform-limited, ~18 ps optical pulses from an external fiber Bragg grating (FBG) stabilized semiconductor laser diode.
Shaif-ul Alam, Chan, Ho-Yin, Peh Siong Teh, David J. Richardson, Teh, Peh Siong, Richardson, David J., Ho-Yin Chan, Alam, Shaif-ul, Shepherd, David P., David P. Shepherd   +9 more
core   +1 more source

Retina‐Inspired Bi‐Based Terahertz Photonic Neuromorphic Devices

Advanced Science, EarlyView.
Combined with effective band alignment and substrate engineering, bismuth materials are introduced to form terahertz photonic bio‐inspired devices with picosecond short‐term plasticity to enable multi‐scene visual perception. Thus obtained hardware through the terahertz optical neural network (THz‐ONN) demonstrates high recognition accuracy, providing ...
Pujing Zhang, Donggang Xie, Longyu Shi, Mengyuan Wang, Huiwen Shi, Yu Wu, Menglei Li, Guangwei She, Peijie Wang, Wensheng Shi, Cunlin Zhang, Kuijuan Jin, Guozhen Yang, Qingli Zhou, Chen Ge   +14 more
wiley   +1 more source

Efficient Excitation of Gain-Saturated Sub-9-nm-Wavelength Tabletop Soft-X-Ray Lasers and Lasing Down to 7.36 nm

Physical Review X, 2011
We have demonstrated the efficient generation of sub-9-nm-wavelength picosecond laser pulses of microjoule energy at 1-Hz repetition rate with a tabletop laser.
D. Alessi, Y. Wang, B. M. Luther, L. Yin, D. H. Martz, M. R. Woolston, Y. Liu, M. Berrill, J. J. Rocca   +8 more
doaj   +1 more source

Multiferroic‐Centric Materials and Systems Engineering for Battery Applications: An Insight Into Mechanisms, Strategies, and Characterizations

Advanced Science, EarlyView.
Multiferroic order parameters – polarization, magnetization, and ferroelastic strain – are positioned as dynamic design variables for batteries. Their mechanistic roles, practical tuning through fabrication and external fields, and ferroic‐resolved characterization routes are unified into a closed‐loop framework, revealing how coupled ferroic responses
Jiaqi Su, Yanda Zhu, Hao Peng, Manman Li, Xuzihan Zhang, Meixiao Wu, Siyuan Zhang, Yuhan Zeng, Jiwen Liao, Ming Luo, Hetaishan Huang, Yutong Wang, Sean Li, Wenxian Li   +13 more
wiley   +1 more source

Picosecond Nd:YAG versus Fractional CO2 Lasers in Management of Postburn Scars

Plastic and Reconstructive Surgery, Global Open
Background:. The picosecond laser was primarily designed to enhance tattoo removal. Because it has a new innovative mechanism for energy delivery, it has been modified to be used in other conditions such as skin resurfacing, which was usually treated ...
Abeer Attia Tawfik, MD, PhD, Noha Sami Hanafy, PhD, Rama Ahmed Ali, MD   +2 more
doaj   +1 more source

Eco‐Friendly Solvent System for Inkjet Deposition of Wide Bandgap Perovskite Solar Cells Enabling Tandem Integration

Advanced Science, EarlyView.
The fabrication of wide‐bandgap perovskite thin films via green solvents integrated with inkjet printing is developed. Controlled crystallization of the perovskite layer is achieved by optimizing ink formulation and additive engineering, enabling power conversion efficiencies above 17% for single junctions and 28% for perovskite/silicon tandem solar ...
Uma Kousalya Dangudubiyyam, Raphael Pesch, Ozan Karakaya, Theresa Kuechle, Faranak Sadegh, Nils W. Rosemann, Henry Weber, Ralf Niemann, Fabian Fertig, Johannes Sutter, Jinzhao Li, Gerardo Hernandez Sosa, Ulrich W. Paetzold   +12 more
wiley   +1 more source

Surface plasmon resonance assisted rapid laser joining of glass [PDF]

, 2014
Rapid and strong joining of clear glass to glass containing randomly distributed embedded spherical silver nanoparticles upon nanosecond pulsed laser irradiation (40 ns and repetition rate of 100 kHz) at 532 nm is demonstrated.
Abdolvand, A., Guang Tang, Zengbo Wang, Amin Abdolvand, Zolotovskaya, Svetlana A., Tang, G., Zolotovskaya, Svetlana; id_orcid, Wang, Zengbo, Tang, Guang, Svetlana A. Zolotovskaya, Abdolvand, Amin, Wang, Z., Abdolvand, Amin; id_orcid, Zolotovskaya, S.A.   +13 more
core   +1 more source

Label‐Free Myelin Fingerprinting: An Adult Human Post‐Mortem Brain Slice Platform via Coherent Anti‐Stokes Raman Spectroscopy

Advanced Science, EarlyView.
A serum‐free, air–liquid interface organotypic slice culture model preserves human post‐mortem corpus callosum tissue, successfully recovering from slicing trauma to reflect the donor's underlying disease state. Pairing label‐free Coherent anti‐Stokes Raman scattering (CARS) microscopy with k‐means clustering enables objective, high‐resolution ...
Kasra Roya‐Kouchaki, Jeroen P. Korterik, Femke Tjebbes, Geert J. Schenk, Herman L. Offerhaus, Antonio Luchicchi   +5 more
wiley   +1 more source

Ultrafast Optoacoustics Reveals Intricate 3D Anisotropic Elasticity in Nanocrystalline Membranes

Advanced Science, EarlyView.
Ultrafast optoacoustic spectroscopy combined with a Sagnac interferometer enables non‐contact, simultaneous characterization of thickness and the full three‐dimensional anisotropic elastic constants in freestanding nanocrystalline copper membranes. By capturing gigahertz Lamb waves and zero‐group‐velocity resonances followed by SAFE‐GA inversion, the ...
Shuchang Zhang, Yi He, Guojie Luo, Jie Huang, Pak San Yip, Haoyu Cui, Wanglinhan Zhang, Zijian Wang, Lin Ye, Yang Lu, Zhongqing Su, Yehai Li   +11 more
wiley   +1 more source

35 kW peak power picosecond pulsed thulium-doped fibre amplifier system seeded by a gain-switched laser diode at 2 microns

High power fibre laser sources in the 2 µm wavelength region with picosecond-scale pulse durations have attractive applications such as materials processing, eye-safe radar and nonlinear frequency conversion to midinfrared wavelengths.
Heidt, A.M., Kelly, B., Ibsen, M., Li, Z., Richardson, D.J., Rothhardt, M., Phelan, R., Sahu, J.K., Shardlow, P.C., Becker, M., Alam, S.-U.   +10 more
core   +1 more source