Results 31 to 40 of about 1,759,075 (150)

Investigation of Nonlinear Optical Modulation Characteristics of MXene VCrC for Pulsed Lasers

Molecules, 2022
We report the surface morphology and the nonlinear absorption characteristics of MXene VCrC nanosheets prepared by the liquid-phase exfoliation method.
Yao Meng, Yizhou Liu, Tao Li, Tianli Feng, Jiacheng Huang, Zheng Ni, Wenchao Qiao   +6 more
doaj   +1 more source

Buildup and Real-Time Control of Spatiotemporal Nonlinear Dynamics

Ultrafast Science
Ultrafast multimode fiber lasers enable the high-dimensional control of pulses, which can generate spatiotemporal mode-locking with high peak power and multimode Q-switching with large pulse energy.
Jingxuan Sun, Gang Wang, Congyu Zhang, Wenhao Lyu, Yunyu Lyu, Bo Fu   +5 more
doaj   +1 more source

Implementation of Islanding Recognizing Technique for Wind Distributed Generations Considering Insignificant NDZ

Frontiers in Energy Research, 2022
The incorporation of distributed energy resources (DERs) into the electricity grid yields environmental, technical, and economic benefits. However, in addition to the benefits, the widespread use of DERs causes technical issues.
Safdar Raza, Hafiz Mudassir Munir, Nouman Shafique, Wajiha Amjad, Mohit Bajaj, Mamdouh L. Alghaythi   +5 more
doaj   +1 more source

Finite-Time Analysis of Asynchronous Q-Learning Under Diminishing Step-Size From Control-Theoretic View

IEEE Access
Q-learning has long been one of the most popular reinforcement learning algorithms, and theoretical analysis of Q-learning has been an active research topic for decades.
Han-Dong Lim, Donghwan Lee
doaj   +1 more source

Robust (Q,S,R)-γ-Dissipative and H₂ Performances for Switched Systems with Mixed Time Delays

Mathematics, 2023
This paper investigates the switching on switching rule and sampling input to guarantee (Q,S,R)-γ-dissipative and H2 performances for switched systems with mixed time delays.
Ker-Wei Yu, Chang-Hua Lien, Hao-Chin Chang, Cheung-Chieh Ku, Sundarapandian Vaidyanathan, Cheng-Ruei Yu, Hung-Chih Li, Yi-You Hou   +7 more
doaj   +1 more source

Scalable Hybrid Switching-Driven Software Defined Networking Issue: From the Perspective of Reinforcement Learning Standpoint

IEEE Access
The Software-Defined Networking technology promises to enhance network performance and cost reduction for service providers by providing scalability, flexibility, and programmability through the separation of the control plane from the data plane ...
Max Blose, Lateef Adesola Akinyemi, Stephen Ojo, Muhammad Faheem, Agbotiname Lucky Imoize, Arfat Ahmad Khan   +5 more
doaj   +1 more source

Er:YAR Laser - Preparation of Hard Dental Tissues

Česká Stomatologie a Praktické Zubní Lékařství, 2007
Free-running and Q-switched infrared Er:YAG laser radiations, ultrasonic ball tip, and classical hand piece drilling machine were compared in the case of hard dental tissues preparation. For the radiation delivery, a special waveguide transfer system was
T. Dostálová, H. Jelínková, M. Němec, P. Koranda, M. Miyagi, K. Iwai, Y. Shi, Y. Matsuura   +7 more
doaj  

Q-switching instability in a mode-locked semiconductor laser

, 2006
We suggest semianalytic estimates for the Q-switching instability boundary of the continuous-wave (cw) mode-locking regime domain for a ring-cavity semiconductor laser.
Bandelow, Uwe, Vladimirov, Andrei G., Bernd Hüttl, Ronald Kaiser, Uwe Bandelow, Hüttl, Bernd, Rachinskii, Dmitrii, Andrei Vladimirov, Kaiser, Ronald, Dmitrii Rachinskii   +9 more
core   +1 more source

Effect of Saturable Absorber Length on Characteristics of Dual Laser Pulses of Passive Q-Switched

مجلة علوم ذي قار
The effect of saturable absorber material length on the characteristics of the dual passive Q-switching pulses generated from two wavelengths (  and ) instead of single wavelength was simulated.  Numerical solution of our previous rate equations model
Sara A.Shadood, Abdul-Kareem Mahdi Salih , Rasool Asal   +2 more
doaj   +1 more source

Graphene Q-Switched Mode-Locked and Q-Switched Ion-Exchanged Waveguide Lasers [PDF]

IEEE Photonics Technology Letters, 2015
In this letter, we present the use of monolayer graphene saturable absorbers to produce Q-switched and Q-switched mode-locked operation of Yb and Yb:Er-doped phosphate glass waveguide lasers, respectively. For the 1535-nm-wavelength Yb:Er laser, the Q-switched pulses have repetition rates up to 526 kHz and contain mode-locked pulses at a repetition ...
Amol Choudhary, Shonali Dhingra, Brian D'Urso, Pradeesh Kannan, David P. Shepherd   +4 more
openaire   +2 more sources