衡阳师范学院学报
衡暘師範學院學報
형양사범학원학보
JOURNAL OF HENGYANG NORMAL UNIVERSITY
2014年
3期
18-23
,共6页
王友文%李舒%游开明%陈列尊%陆世专%戴志平%凌晓辉
王友文%李舒%遊開明%陳列尊%陸世專%戴誌平%凌曉輝
왕우문%리서%유개명%진렬존%륙세전%대지평%릉효휘
艾里激光束%超常介质%自由加速%无衍射光束
艾裏激光束%超常介質%自由加速%無衍射光束
애리격광속%초상개질%자유가속%무연사광속
Airy beam%meta-materials%free acceleration%non-diffracting beam
艾里光束(Airy beam )是近年来备受关注的新型无衍射激光束之一,艾里激光束具有自由加速、无衍射及自愈等奇异特性,并具有重要应用前景。超常介质为人工微结构材料,它使人们具备按需要设计介质参数的能力。基于一维光束传输方程,获得了超常介质中艾里光束复振幅传输解析表达式。数值计算结果表明,超常介质中艾里光束振幅的大小与在正常介质中完全相同,而振幅的虚部和相位正好相反。所得结果为人们操控艾里光束提供支持。
艾裏光束(Airy beam )是近年來備受關註的新型無衍射激光束之一,艾裏激光束具有自由加速、無衍射及自愈等奇異特性,併具有重要應用前景。超常介質為人工微結構材料,它使人們具備按需要設計介質參數的能力。基于一維光束傳輸方程,穫得瞭超常介質中艾裏光束複振幅傳輸解析錶達式。數值計算結果錶明,超常介質中艾裏光束振幅的大小與在正常介質中完全相同,而振幅的虛部和相位正好相反。所得結果為人們操控艾裏光束提供支持。
애리광속(Airy beam )시근년래비수관주적신형무연사격광속지일,애리격광속구유자유가속、무연사급자유등기이특성,병구유중요응용전경。초상개질위인공미결구재료,타사인문구비안수요설계개질삼수적능력。기우일유광속전수방정,획득료초상개질중애리광속복진폭전수해석표체식。수치계산결과표명,초상개질중애리광속진폭적대소여재정상개질중완전상동,이진폭적허부화상위정호상반。소득결과위인문조공애리광속제공지지。
The Airy beam is a new kind of non-diffracting beam discovered in recent years .Airy beams have exotic characteris-tics such as free acceleration ,non-diffracting laser beam and self-healing ,and so have important application potentials .Meta-materials are artificial microstructures material ,which permit people to design electromagnetic parameters of media at will . Based on the paraxial wave equation ,the analytical expression of complex amplitude of Airy beams in meta-materials is ob-tained ;in addition ,the numerical results show that ,the module of complex amplitude of Airy beams in meta-materials is simi-lar to that of conventional medium ,while the imaginary part and the phase complex amplitude are opposite .The results may provide support for people to better manipulation of the Airy beam .