Results 81 to 90 of about 99,732 (295)

50-W, >2-μJ SESAM-modelocked Ho:YAG thin-disk oscillator at 2.1 μm [PDF]

EPJ Web of Conferences, 2022
Tomilov Sergei, Wang Yicheng, Hoffmann Martin, Heidrich Jonas, Golling Matthias, Keller Ursula, Saraceno Clara J.   +6 more
doaj   +1 more source

Review of low timing jitter mode-locked fiber lasers and applications in dual-comb absolute distance measurement

Nanotechnology and Precision Engineering, 2018
Passively mode-locked fiber lasers emit femtosecond pulse trains with excellent short-term stability. The quantum-limited timing jitter of a free running femtosecond erbium-doped fiber laser working at room temperature is considerably below one ...
Haosen Shi, Youjian Song, Runmin Li, Yuepeng Li, Hui Cao, Haochen Tian, Bowen Liu, Lu Chai, Minglie Hu   +8 more
doaj   +1 more source

Establishing a Model Precursor System: Over a Decade of Research on Carbon Dots from the Citric Acid‐Urea System

Advanced Functional Materials, EarlyView.
The citric acid/urea (CA‐Urea) precursor system offers a versatile, scalable route to carbon dots with tunable luminescence and multifunctionality. Mechanistic insights into precursor chemistry and reaction parameters have enabled doping, surface modification, and hybridization strategies, yielding CDs for luminescent devices, sensing, catalysis ...
Yupeng Liu, Zhiqi Cai, Xiangxin Sun, Hanyi Zhang, Yiming Hao, Jun Wu, Zekun Yan, Xue Wu, Yiqi Liang, Liming Wang, Songnan Qu   +10 more
wiley   +1 more source

Watt-Level, Narrow-Linewidth, Tunable Green Semiconductor Laser with External-Cavity Synchronous-Locking Technique

Sensors
External-cavity GaN semiconductor lasers at blue wavelengths enable narrow-linewidth and high-power output but is difficult at >500 nm green wavelengths due to the so-called ‘green gap’.
Chunna Feng, Bangze Zeng, Jinhai Zou, Qiujun Ruan, Zhengqian Luo   +4 more
doaj   +1 more source

Robust ultrafast currents in molecular wires through Stark shifts

, 2007
A novel way to induce ultrafast currents in molecular wires using two incident laser frequencies, $\omega$ and $2\omega$, is demonstrated. The mechanism relies on Stark shifts, instead of photon absorption, to transfer population to the excited states ...
Ignacio Franco, M. Shapiro, Moshe Shapiro, Paul Brumer   +3 more
core   +1 more source

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

Advanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu, Taoyu Zou, Cheng‐Yan Xu, Liang Zhen, Yang Li, Yong‐Young Noh   +5 more
wiley   +1 more source

Diode-pumped 88 fs SESAM mode-locked Tm,Ho:CLNGG laser at 2090 nm

Applied Physics Express
We report on a passively mode-locked Tm,Ho:CLNGG laser operating at 2090 nm, pumped by a multimode fiber-coupled 793 nm laser diode, representing the first demonstration of a diode-pumped sub-100-fs mode-locked laser at 2.1 μ m wavelength.
Anna Suzuki, Yicheng Wang, Sergei Tomilov, Zhongben Pan, Clara J. Saraceno   +4 more
doaj   +1 more source

Observation of Two‐Photon Resonant Raman Scattering via the Biexciton Level in Two‐Dimensional Halide Perovskite (C6H5C2H4NH3)2PbI4

Advanced Functional Materials, EarlyView.
Efficient two‐photon resonant Raman scattering (TRRS) is observed in the layered perovskite (PEA)2PbI4, with the biexciton level acting as an intermediate state. TRRS undergoes two‐photon frequency shift upon input frequency tuning, persists up to 90 K, and shows clear threshold behavior and polarization selection rules.
Seung Han Shin, Seo Hyun Nam, Jeehong Park, Dong Gyu Lee, Jeong Bin Cho, Tae Jung Kim, Yeonjin Yi, Joon Ik Jang   +7 more
wiley   +1 more source

Reduction of Moving Target Time-of-Flight Measurement Uncertainty in Femtosecond Laser Ranging by Singular Spectrum Analysis Based Filtering

Applied Sciences, 2018
Femtosecond laser ranging has drawn great interest in recent years, particularly based on an asynchronous optical sampling implementation where a pair of femtosecond lasers are used.
Hui Cao, Youjian Song, Yuepeng Li, Runmin Li, Haosen Shi, Jiahe Yu, Minglie Hu, Chingyue Wang   +7 more
doaj   +1 more source

Characterization of a rapid scan FTIR for ultrafast probing in the mid-IR region [PDF]

, 2016
En col·laboració amb la Universitat Autònoma de Barcelona (UAB) i la Universitat de Barcelona (UB)The properties of materials in the mid-infrared spectral region (3-15 \mu m) is vital for understanding their operation and performance.
Moreno Mencía, David
core   +1 more source