Results 51 to 60 of about 155,967 (379)

Intramolecular Down‐ and Up‐Conversion in Dimeric Tetracene Complexes Centered via Platinum(II) and Palladium(II)

Advanced Functional Materials, EarlyView.
Metal‐tetracene dimeric complexes are synthesized through the pyridyl coordination to either Pt(II) or Pd(II). Photophysical properties are systematically compared as a function of the metal using steady‐state and time‐resolved spectroscopy. The Pt(II) dimer exhibits efficient intramolecular singlet fission and subsequent intramolecular up‐conversion ...
Yifan Bo, Yuxuan Hou, Melchor Matabuena, Rik R. Tykwinski, Dirk M. Guldi   +4 more
wiley   +1 more source

Ultrafast magnetization reversal by picosecond electrical pulses [PDF]

Science Advances, 2016
Magnetic switching is induced in 10 ps by electrical current pulses. The field of spintronics involves the study of both spin and charge transport in solid-state devices.
Yang Yang, Richard B. Wilson, Jon Gorchon, C. Lambert, S. Salahuddin, J. Bokor   +5 more
semanticscholar   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

The Picosecond Laser Effects on Tattoo Removal and Metabolic Pathways

Clinical, Cosmetic and Investigational Dermatology, 2021
Yan Qu,1 Xien Feng,2 Jin’ning Liang,2 Junru Liu,3 Dong Gao2 1Department of Dermatology, The Affiliated Hospital of Weifang Medical University, Weifang, Shandong, 261031, People’s Republic of China; 2Department of Dermatology, Yantai Yuhuangding Hospital,
Qu Y, Feng X, Liang J, Liu J, Gao D
doaj  

Picosecond Holographic-Grating Spectroscopy [PDF]

Science, 1987
Interfering light waves produce an optical interference pattern in any medium that interacts with light. This modulation of some physical parameter of the system acts as a classical holographic grating for optical radiation. When such a grating is produced through interaction of pulsed light waves with an optical transition, a transient grating is ...
D A, Wiersma, K, Duppen
openaire   +2 more sources

Ladder‐Type Benzene‐Perylene Dyes with Efficient Laser Properties in the Near‐IR by Detracting/Activating Low/High Frequency Vibronic Modes

Advanced Functional Materials, EarlyView.
The NNR‐n series of oligomeric nanographenes delivers exceptional emission performance. This work shows that this performance is originated by their ladder‐type structure, which effectively deactivates low‐frequency vibronic modes. This deactivation neglects the main pathway for non‐emissive deactivation, even in the near‐infrared region. The potential
Marcos Díaz‐Fernández, Álex Farrando Pérez, Fernando Gordillo Gámez, Pedro G. Boj, José M. Villalvilla, José A. Quintana, Yanpei Wan, Daniel Aranda, José Manuel Marín‐Beloqui, Jishan Wu, Zebing Zeng, María A. Díaz‐García, Juan Casado   +12 more
wiley   +1 more source

Experimental Investigations on Laser Ablation of Aluminum in Sub-Picosecond Regimes

Applied Sciences, 2020
Due to high power and ultrashort pulses, femtosecond lasers excel at (but are not limited to) processing materials whose thicknesses are less than 500 microns. Numerous experiments and theoretical analyses testify to the fact that there are solid grounds
Katarzyna Garasz, Marek Kocik
doaj   +1 more source

Id reaction and allergic contact dermatitis post-picosecond laser tattoo removal: A case report

SAGE Open Medical Case Reports, 2021
The novel picosecond lasers have emerged as a mainstay device in laser tattoo removal alongside Q-switch lasers, considered the gold standard in the field.
Ian TY Wong, Larry WK Cheung
doaj   +1 more source

Picosecond electric-field-induced threshold switching in phase-change materials

, 2016
Many chalcogenide glasses undergo a breakdown in electronic resistance above a critical field strength. Known as threshold switching, this mechanism enables field-induced crystallization in emerging phase-change memory.
Brongersma, Mark, Chen, Frank, Fong, Scott W., Johnston, Scott, Jost, Peter, Kaes, Matthias, Landreman, Patrick, Lindenberg, Aaron, Salinga, Martin, Shen, Zhi-Xun, Sher, Meng-Ju, Shu, Michael J., von Hoegen, Alexander, Wen, Haidan, Wong, H. -S. Philip, Wu, Xiaoxi, Wuttig, Matthias, Zalden, Peter, Zhu, Yi   +18 more
core   +1 more source

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

Advanced Functional Materials, EarlyView.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey, Uwe Hübner, Albane Benardais, Xiaofei Wu, Andrea Dellith, Jan Dellith, Torsten Wieduwilt, Henrik Schneidewind, Markus A Schmidt, Virginie Nazabal, Volker Deckert, Jer‐Shing Huang, Wei Wang   +12 more
wiley   +1 more source