Ultra-thin,planar,broadband,dual-polarity plasmonic metalens

来源 :Photonics Research | 被引量 : 0次 | 上传用户:qichen1988
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
An ultrathin,planar,broadband metalens composed of metal rectangular split-ring resonators(MRSRRs) has been designed,which shows dual-polarity characteristics for different types of circularly polarized(CP) light incidence.The designed metalens can be considered as the focusing lens and the diverging lens under left-handed CP and right-handed CP light incidence,respectively.The phase discontinuity of the cross-polarized transmission light is produced by optical-axis rotation through modulating two arms’ lengths of the MRSRR.The MRSRR metalens possesses a wavelength-controllable focal length and a relatively larger chromatic aberration compared with the conventional lenses.And the focal length changes from 9 to 7 μm with incident wavelength from 740 to 950 nm.The dual-polarity flat metalens opens a door for new applications of phase discontinuity devices,and it will promote the fabricating capability of on-chip or fiber-embedded optical devices. An ultrathin, planar, broadband metalens composed of metal rectangular split-ring resonators (MRSRRs) has been designed, which shows dual-polarity characteristics for different types of circularly polarized (CP) light incidence. The designed metalens can be considered as the focusing lens and the diverging lens under left-handed CP and right-handed CP light incidence, respectively. The phase discontinuity of the cross-polarized transmission light is produced by optical-axis rotation through modulating two arms’ lengths of the MRSRR. MRSRR metalens possesses a wavelength-controllable focal length and a relatively larger chromatic aberration compared with the conventional lenses. End of the focal length changes from 9 to 7 μm with incident wavelength from 740 to 950 nm. dual-polarity flat metalens opens a door for new applications of phase discontinuity devices, and it will promote the fabricating capability of on-chip or fiber-embedded optical devices.
其他文献
自我炒作也好,激进维权也好,罗永浩的“砸冰箱秀”用来对付那些蛮横强势的跨国公司也算是个招。在牛博网创始人罗永浩与西门子公司因冰箱关不上门的问题纠缠了两个多月之后,
著名教育家于漪曾说:“语文教学姹紫嫣红,春色无限,多彩的知识,丰厚的人道,绵绵的情思,深邃的哲理,对青春少年的学生来说,能启智,长见识,陶冶情操,诱发不尽的遐想。”的确,语
河流在大地上奔流,人从河流那儿学会了流浪。河流最终在大海里永生,而人却在死亡中寂灭。  八年前,我由蜀地落户汉中,曾固执地把自己称为异乡人。我在一个叫芦家沟的地方,和一条名为冷水的河流度过了两年时光。  冷水河很瘦,瘦得只有细细一脉,不堪一握。河上没有浪花旋涡,也无舟自横,它总是那么安静,从不弄出一点儿声响来;它更像一道无名的野水,有点儿荒凉,却是清澈、快乐、自由的,并由此显出清秀和灵气来。  每
靖郭君将城薛,客多以谏。靖郭君谓谒者:“无为客通。”齐人有请者曰:“臣请三言而已矣!益一言,臣请烹。”靖郭君因见之。客趋而进曰:“海大鱼。”因反走。君曰:“客有于此。
左边是园,右边是园。  是塔是桥,是寺是河,是诗是画,是石径是帆船是假山。  左边的园修复了,右边的园开放了。有客自海上来,有客自异乡来。塔更挺拔,桥更洗练,寺更幽凝,河更闹热,石径好吟诗,帆船应入画。而重重叠叠的假山,传至今天还要继续传下去的是你的匠心真情。是你的参差坎坷的魅力。  这是苏州。人间天上无双不二的蘇州。中国的苏州。  苏州已经建城二千五百年。它已经老态龙钟。无怪乎七年前初次造访的时
“掘战达人”沃尔沃杯第二届全国挖掘机操作手绿色节油挑战赛在沪完美谢幕加12年10月30日,“掘战达人”沃尔沃杯第二届全国挖掘机操作手绿色节油挑战赛全国总决赛在沪完美落
我原名万家宝,字小石。小石,这是按我父亲的字排下来的。我父亲叫万德尊,字宗石。还是在湖北省潜江县的时候,万家是个大家族,人很多,但我们这一房最穷了。祖父是位教私塾的老
什么样的高考作文,可以赢得阅卷老师的青睐,被评为满分卷?什么样的高考作文,可以博得阅卷老师的好感,被评为一类卷?什么样的高考作文,给人的印象平平,只能被评为二类卷?什么
目的:为了减少高压氧设备的故障和安全事故的发生,更好的做好氧舱的维护保养工作。方法:通过制定年度保养计划,确定保养周期、保养责任人、保养内容,将年度维护保养工作落实
秋日里一个阳光灿烂的下午。上犹县东山镇中心小学活动类课正在进行。“同学们,现在是‘道德缤纷时光’,今天我们的话题是——怎样才算是一个有道德的人?”小主持人话音刚落,