【摘 要】
：
A comprehensive study on the requirements for the highly efficient third harmonic generation (THG) and its inverse process, one-third harmonic generation (OTHG)
【机 构】
：
Department of Electronic and Information Engineering, Harbin Institute of Technology (Shenzhen), She
论文部分内容阅读
A comprehensive study on the requirements for the highly efficient third harmonic generation (THG) and its inverse process, one-third harmonic generation (OTHG), in lossy waveguides is proposed. The field intensity restrictions for both THG and OTHG caused by loss are demonstrated. The effective relative phase ranges, supporting the positive growth of signal fields of THG and OTHG are shrunken by the loss. Furthermore, it tus out that the effective relative phase ranges depend on the intensities of the interacting fields. At last, a modified definition of coherent length in loss situation, which evaluates the phase matching degree more precisely, is proposed by incorporating the shrunken relative phase range and the nonlinear phase mismatch. These theoretical analysis are valuable for guiding the experimental designs for highly efficient THG and OTHG.
其他文献
In this work, we mainly investigate the NH3 molecular multiphoton ionization process by using the photoelectron velocity map imaging technique. Under the condit
Thermal stability of core-shell nanoparticles (CSNPs) is crucial to their fabrication processes, chemical and physical properties, and applications. Here we sys
葡萄是世界性栽培的主要果树之一，不仅用途广泛，还具有良好的经济效益。生产上主栽品种欧洲葡萄高产优质风味佳，但其突出缺点是易感病，尤其是葡萄白粉病。葡萄中的白藜芦醇及其衍
Highly nonlinear fibers (HNLFs) are crucial components for supercontinuum (SC) generation with laser solution. However, it is difficult to exactly estimate the
The novel coronavirus pneumonia triggered by COVID-19 is now raging the whole world. As a rapid and reliable killing COVID-19 method in industry, electron beam
The grain boundaries of graphene are disordered topological defects, which would strongly affect the physical andchemical properties of graphene. In this paper,
The (3+1)-dimensional Burgers equation, which describes nonlinear waves in turbulence and the interface dynamics, is considered. Two types of semi-rational solu
连锁经营作为现代大工业发展的产物，历经100多年的发展，已经成为当今国际普遍采用的一种商业运作模式，并逐步往茶行业渗透。中国最早开始实行连锁经营的茶叶企业是天福茗茶，现已
没有什么是一成不变的。生活就像自然，有阳春，也有金秋；有酷夏，也有寒冬。走运和倒霉都不可能持续很久。对于突然情况，如果没有充分的思想准备，那么厄运就会像大海的波涛一样，
We study the phase diagram of the interacting fermionic two-leg ladder, which is featured by pair hopping and interactions of singlet and triplet superconductin