Content of TOPICAL REVIEW—Optical field manipulation in our journal

Published in last 1 year |  In last 2 years |  In last 3 years |  All Please wait a minute... For selected: Download citations EndNote Ris BibTeX Toggle thumbnails Select Strong field ionization of molecules on the surface of nanosystems Qiwen Qu(曲棋文), Fenghao Sun(孙烽豪), Jiawei Wang(王佳伟), Jian Gao(高健), Hui Li(李辉), and Jian Wu(吴健) Chin. Phys. B, 2024, 33 (4): 047803.   DOI: 10.1088/1674-1056/ad2509 Abstract （18）      PDF （2193KB）（3）       Knowledge map    Besides the diverse investigations on the interactions between intense laser fields and molecular systems, extensive research has been recently dedicated to exploring the response of nanosystems excited by well-tailored femtosecond laser fields. Due to the fact that nanostructures hold peculiar effects when illuminated by laser pulses, the underlying mechanisms and the corresponding potential applications can make significant improvements in both fundamental research and development of novel techniques. In this review, we provide a summarization of the strong field ionization occurring on the surface of nanosystems. The molecules attached to the nanoparticle surface perform as the precursor in the ionization and excitation of the whole nanosystem, the fundamental processes of which are yet to be discovered. We discuss the influence on nanoparticle constituents, geometric shapes and sizes, as well as the specific waveforms of the excitation laser fields. The intriguing characteristics observed in surface ion emission reflect how enhanced near field affects the localized ionizations and nanoplasma expansions, thereby paving the way for further precision controls on the light-and-matter interactions in the extreme spatial temporal levels. Select Review on typical applications and computational optimizations based on semiclassical methods in strong-field physics Xun-Qin Huo(火勋琴), Wei-Feng Yang(杨玮枫), Wen-Hui Dong(董文卉), Fa-Cheng Jin(金发成), Xi-Wang Liu(刘希望), Hong-Dan Zhang(张宏丹), and Xiao-Hong Song(宋晓红) Chin. Phys. B, 2022, 31 (3): 033101.   DOI: 10.1088/1674-1056/ac306b Abstract （403）   HTML （1）    PDF （6203KB）（218）       Knowledge map    The semiclassical method based on Feynman's path-integral is in favor of uncovering the quantum tunneling effect, the classical trajectory description of the electron, and the quantum phase information, which can present an intuitive and transparent physical image of electron's propagation in comparison with the ab initio time-dependent Schrödinger equation. In this review, we introduce the basic theoretical concepts and development of several semiclassical methods as well as some of their applications in strong-field physics. Special emphasis is placed on extracting time delay on attosecond scale by the combination of the semiclassical method with phase of phase method. Hundreds of millions of trajectories are generally adopted to obtain a relatively high-resolution photoelectron spectrum, which would take a large amount of time. Here we also introduce several optimization approaches of the semiclassical method to overcome the time-consuming problem of violence calculation. Select Strong-field response time and its implications on attosecond measurement Chao Chen(陈超), Jiayin Che(车佳殷), Xuejiao Xie(谢雪娇), Shang Wang(王赏), Guoguo Xin(辛国国), and Yanjun Chen(陈彦军) Chin. Phys. B, 2022, 31 (3): 033201.   DOI: 10.1088/1674-1056/ac29ab Abstract （339）   HTML （2）    PDF （3328KB）（107）       Knowledge map    To measure and control the electron motion in atoms and molecules by the strong laser field on the attosecond time scale is one of the research frontiers of atomic and molecular photophysics. It involves many new phenomena and processes and raises a series of questions of concepts, theories, and methods. Recent studies show that the Coulomb potential can cause the ionization time lag (about 100 attoseconds) between instants of the field maximum and the ionization-rate maximum. This lag can be understood as the response time of the electronic wave function to the strong-field-induced ionization event. It has a profound influence on the subsequent ultrafast dynamics of the ionized electron and can significantly change the time—frequency properties of electron trajectory (an important theoretical tool for attosecond measurement). Here, the research progress of response time and its implications on attosecond measurement are briefly introduced. Select Superchiral fields generated by nanostructures and their applications for chiral sensing Huizhen Zhang(张慧珍), Weixuan Zhang(张蔚暄), Saisai Hou(侯赛赛), Rongyao Wang(王荣瑶), and Xiangdong Zhang(张向东) Chin. Phys. B, 2021, 30 (11): 113303.   DOI: 10.1088/1674-1056/ac11df Abstract （402）   HTML （1）    PDF （7726KB）（163）       Knowledge map    Chirality is ubiquitous in natural world. Although with similar physical and chemical properties, chiral enantiomers could play different roles in biochemical processes. Discrimination of chiral enantiomers is extremely important in biochemical, analytical chemistry, and pharmaceutical industries. Conventional chiroptical spectroscopic methods are disadvantageous at a limited detection sensitivity because of the weak signals of natural chiral molecules. Recently, superchiral fields were proposed to effectively enhance the interaction between light and molecules, allowing for ultrasensitive chiral detection. Intensive theoretical and experimental works have been devoted to generation of superchiral fields based on artificial nanostructures and their application in ultrasensitive chiral sensing. In this review, we present a survey on these works. We begin with the introduction of chiral properties of electromagnetic fields. Then, the optical chirality enhancement and ultrasensitive chiral detection based on chiral and achiral nanostructures are discussed respectively. Finally, we give a short summary and a perspective for the future ultrasensitive chiral sensing. Select Photonic-plasmonic hybrid microcavities: Physics and applications Hongyu Zhang(张红钰), Wen Zhao(赵闻), Yaotian Liu(刘耀天), Jiali Chen(陈佳丽), Xinyue Wang(王欣月), and Cuicui Lu(路翠翠) Chin. Phys. B, 2021, 30 (11): 117801.   DOI: 10.1088/1674-1056/ac0db3 Abstract （451）   HTML （3）    PDF （4257KB）（261）       Knowledge map    Photonic-plasmonic hybrid microcavities, which possess a higher figure of merit Q/V (the ratio of quality factor to mode volume) than that of pure photonic microcavities or pure plasmonic nano-antennas, play key roles in enhancing light-matter interaction. In this review, we summarize the typical photonic-plasmonic hybrid microcavities, such as photonic crystal microcavities combined with plasmonic nano-antenna, whispering gallery mode microcavities combined with plasmonic nano-antenna, and Fabry-Perot microcavities with plasmonic nano-antenna. The physics and applications of each hybrid photonic-plasmonic system are illustrated. The recent developments of topological photonic crystal microcavities and topological hybrid nano-cavities are also introduced, which demonstrates that topological microcavities can provide a robust platform for the realization of nanophotonic devices. This review can bring comprehensive physical insights of the hybrid system, and reveal that the hybrid system is a good platform for realizing strong light-matter interaction. Select Research progress of femtosecond surface plasmon polariton Yulong Wang(王玉龙), Bo Zhao(赵波), Changjun Min(闵长俊), Yuquan Zhang(张聿全), Jianjun Yang(杨建军), Chunlei Guo(郭春雷), Xiaocong Yuan(袁小聪) Chin. Phys. B, 2020, 29 (2): 027302.   DOI: 10.1088/1674-1056/ab6717 Abstract （704）   HTML    PDF （14170KB）（358）       Knowledge map    As the combination of surface plasmon polariton and femtosecond laser pulse, femtosecond surface plasmon polariton has both nanoscale spatial resolution and femtosecond temporal resolution, and thus provides promising methods for light field manipulation and light-matter interaction in extreme small spatiotemporal scales. Nowadays, the research on femtosecond surface plasmon polariton is mainly concentrated on two aspects: one is investigation and characterization of excitation, propagation, and dispersion properties of femtosecond surface plasmon polariton in different structures or materials; the other one is developing new applications based on its unique properties in the fields of nonlinear enhancement, pulse shaping, spatiotemporal super-resolved imaging, and others. Here, we introduce the research progress of properties and applications of femtosecond surface plasmon polariton, and prospect its future research trends. With the further development of femtosecond surface plasmon polariton research, it will have a profound impact on nano-optoelectronics, molecular dynamics, biomedicine and other fields.