scholarly journals High-Order Harmonics Generation in Atomic and Molecular Zinc Plasmas

Photonics ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 29
Author(s):  
Rashid A. Ganeev ◽  
Hiroto Kuroda
Keyword(s):  
Molecular Species ◽  
High Order ◽  
Resonance Enhancement ◽  
Laser Sources ◽  
Harmonic Resonance ◽  
Harmonics Generation

We demonstrate the variations of single harmonic resonance enhancement during high-order harmonics generation in zinc-containing atomic and molecular species at the conditions of single-color and two-color pumps of laser-induced plasmas by applying different laser sources. We show how selenides of this metal notably modify the enhancement of single (9th, 15th or 16th) harmonic compared with purely atomic zinc plasmas. The variations of single harmonic enhancement are demonstrated using fixed (806 nm) and tunable (1280–1440 nm) radiation.

Harmonic Resonance Frequency Factor of Spur Gear System and Oscillation Reduction Approaches

2007 ◽  
Author(s):  
Jianping Wang ◽  
Pengfei Li ◽  
Ziying Wu ◽  
Minghong Zhang
Keyword(s):  
Parametric Excitation ◽  
Linear Time ◽  
Primary Resonance ◽  
Frequency Factor ◽  
Multiple Scale ◽  
Transmission Error ◽  
Spur Gear ◽  
High Order ◽  
Time Varying ◽  
Harmonic Resonance

In this study, a non-linear time-varying dynamic model of a spur gear pair system is used to investigate the dynamic behavior of the system by means of multiple scale approach. Both time-varying stiffness, transmission error and tooth backlash clearance of the system are taken into account in the model. The mesh stiffness fluctuation is developed as high order Fourier series and tooth backlash clearance is fitted by high order polynomial function. The frequency factors of the system are investigated and the frequency-response equations at the case of internal and external excitation, parametric excitation and combined excitation are obtained. The peak value of the amplitude of the primary resonance, super and sub harmonic resonance and combination harmonic under internal, external and parametric excitation are researched. The approaches of vibration reduction are investigated. Finally an example is investigated using the presented process and the results indicate the sensitivity and correctness of the presented analysis approaches.

Optimizing the phase matching in high-order harmonics generation

2017 ◽  
Author(s):  
Chao Wang ◽  
Dong-eon Kim ◽  
Yi-fan Kang ◽  
Nilabha Bhattacharjee ◽  
Yong-lin Bai ◽  
...  
Keyword(s):  
High Order ◽  
Phase Matching ◽  
Harmonics Generation

High-order harmonics generation by few-cycle and multi-cycle femtosecond laser pulses

2010 ◽  
Vol 19 (12) ◽  
pp. 124210 ◽  
Author(s):  
Chen-Xia Yun ◽  
Hao Teng ◽  
Wei Zhang ◽  
Min-Jie Zhan ◽  
Hai-Nian Han ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
High Order ◽  
Harmonics Generation

High-order harmonic resonance phenomena of a voltage-sourced converter in cable system

2004 ◽  
Vol 150 (3) ◽  
pp. 26-35 ◽  
Author(s):  
Tatsuhito Nakajima ◽  
Hirokazu Suzuki ◽  
Koji Temma ◽  
Isao Iyoda
Keyword(s):  
High Order ◽  
Cable System ◽  
High Order Harmonic ◽  
Resonance Phenomena ◽  
Voltage Sourced Converter ◽  
Harmonic Resonance

High-order harmonics generation under quasi-phase matched conditions in silver, boron, and silver sulfide plasmas of different configurations

2019 ◽  
Vol 125 (15) ◽  
pp. 153101 ◽  
Author(s):  
Rashid A. Ganeev ◽  
Ganjaboy S. Boltaev ◽  
Vyacheslav V. Kim ◽  
Pavel V. Redkin ◽  
Chunlei Guo
Keyword(s):  
Silver Sulfide ◽  
High Order ◽  
Harmonics Generation

scholarly journals Reexamining Different Factors of the Resonance-Enhanced High-Order Harmonic Generation in Atomic and Nanoparticle Laser-Induced Tin Plasmas

2021 ◽  
Vol 11 (5) ◽  
pp. 2193
Author(s):  
Rashid A. Ganeev ◽  
Hiroto Kuroda
Keyword(s):  
Harmonic Generation ◽  
Enhancement Factor ◽  
Near Infrared ◽  
High Order ◽  
High Order Harmonic Generation ◽  
Laser Induced Plasma ◽  
High Order Harmonic ◽  
Resonance Enhancement ◽  
Even Harmonics ◽  
Sn Nanoparticle

We reexamine the resonance enhancement of a single harmonic emission during the propagation of ultrafast pulses through atomic and nanoparticle tin-containing laser-induced plasma (LIP). We compare the single atomic Sn and Sn nanoparticle plasmas to demonstrate a distinction in the enhancement factor of the single harmonic in the case of fixed and tunable near-infrared pulses. The analysis of the dynamics of Sn LIP shows the range of optimal delays between heating and driving pulses (130–180 ns), at which the maximal harmonic yield can be achieved. The enhancements of the 17th and 18th harmonics of 806 nm pulses were analyzed in the case of single-color and two-color pumps of LIP, showing up to a 12-fold enhancement of even harmonics in the two-color pump case. We show the enhancement of a single harmonic in the vicinity of the 4d105s25p2P3/2→4d95s25p2 transitions of Sn II ions and demonstrate how this process depends on the constituency of the plasma components at different conditions of target ablation. The application of tunable (1280–1440 nm) radiation allows for demonstrating the variations of single harmonic enhancement using a two-color pump of Sn-containing LIP.

Distinction in resonance properties of the atomic and molecular contained plasmas used for high-order harmonics generation of ultrafast laser pulses

2021 ◽  
Vol 129 (4) ◽  
pp. 043103
Author(s):  
Rashid A. Ganeev ◽  
Ganjaboy S. Boltaev ◽  
Vyacheslav V. Kim ◽  
Mazhar Iqbal ◽  
Hiroto Kuroda ◽  
...  
Keyword(s):  
Laser Pulses ◽  
Ultrafast Laser ◽  
High Order ◽  
Ultrafast Laser Pulses ◽  
Resonance Properties ◽  
Harmonics Generation
Sign in / Sign up

Export Citation Format

Share Document