本文選題：太赫茲　切入點(diǎn)：表面極化激元　出處：《物理學(xué)報(bào)》2017年14期

【摘要】：作為束縛于表面或界面的電磁波與極性元激發(fā)的耦合模量子,表面極化激元是克服衍射極限的核心物理.在紫外、可見以及近紅外波段,表面等離子極化激元展現(xiàn)出了亞波長特性,具有高分辨成像等應(yīng)用,并發(fā)展成為"表面等離子極化激元亞波長光學(xué)"學(xué)科;在中紅外波段,表面聲子極化激元發(fā)揮著同樣的作用.太赫茲波段曾是人類認(rèn)識(shí)的空白區(qū)域,近三十年來得以高速發(fā)展,其戰(zhàn)略意義重大.具有克服衍射極限能力的太赫茲表面極化激元同樣是小型化與集成化太赫茲器件,以及太赫茲超高分辨成像的重要物理基礎(chǔ).近幾年來,對以石墨烯為代表的二維材料的研究突飛猛進(jìn),誕生了"石墨烯表面等離子極化激元亞波長光學(xué)"這門學(xué)科,并貢獻(xiàn)于太赫茲領(lǐng)域.本文對可在太赫茲波段工作的人工超構(gòu)材料、摻雜半導(dǎo)體、二維電子氣、二維材料、拓?fù)浣^緣體等結(jié)構(gòu)材料的表面極化激元進(jìn)行了較為全面的總結(jié)與介紹,為研制克服衍射極限的太赫茲集成光子學(xué)器件提供可資借鑒的物理基礎(chǔ).
[Abstract]:As a coupling modulon excited by electromagnetic waves and polar elements bound to the surface or interface, the surface polarized excitation is the core physics to overcome the diffraction limit. Surface plasma polarimetric polaritons exhibit subwavelength characteristics and have high resolution imaging applications, and have developed into the subject of "surface plasma polarimetric subwavelength optics". The surface phonon polarizers play the same role. The terahertz band was once a blank area of human understanding and has been developing at a high speed in the last 30 years. It is of great strategic significance. Terahertz surface polarizers with the ability to overcome diffraction limits are also the important physical basis for miniaturization and integration of terahertz devices and terahertz ultra-high resolution imaging. The research on the two-dimensional materials represented by graphene has made great progress, and the subject of "Subwavelength Optics of Plasma polarization on Graphite Surface" has been born. And contribute to the terahertz field. In this paper, we study the artificial superstructure materials, doped semiconductors, two-dimensional electron gas, two-dimensional materials, which can work in the terahertz band. The surface polarization excitators of topological insulators and other structural materials are summarized and introduced comprehensively, which provides a reference physical basis for the development of terahertz integrated photonics devices to overcome the diffraction limit.
【作者單位】： 南京大學(xué)現(xiàn)代工程與應(yīng)用科學(xué)學(xué)院固體微結(jié)構(gòu)物理國家重點(diǎn)實(shí)驗(yàn)室人工微結(jié)構(gòu)科學(xué)與技術(shù)協(xié)同創(chuàng)新中心;
【基金】：國家重點(diǎn)研發(fā)計(jì)劃(批準(zhǔn)號(hào):2017YFA0303700) 國家自然科學(xué)基金(批準(zhǔn)號(hào):11621091,11374150,11274159)資助的課題~~
【分類號(hào)】：O441.4

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