Optical vortex;
cylindrical nanowaveguide;
phase control;
orbital angular momentum;
ORBITAL ANGULAR-MOMENTUM;
PANCHARATNAM-BERRY PHASE;
LENSES;
TRANSMISSION;
REFLECTION;
BEAM;
D O I:
10.1021/nl500658n
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Light beams with orbital angular momentum have significant potential to transform many areas of modern photonics from imaging to classical and quantum communication systems. We design and experimentally demonstrate an ultracompact array of nanowaveguides with a circular graded distribution of channel diameters that coverts a conventional laser beam into a vortex with an orbital angular momentum. The proposed nanoscale beam converter is likely to enable a new generation of on-chip or all-fiber structured light applications.
机构:
Bar Ilan Univ, Faculty Engn, IL-52900 Ramat Gan, Israel
Bar Ilan Univ, Inst Nanotechnol & Adv Mat, IL-52900 Ramat Gan, Israel
Ben Gurion Univ Negev, Dept Elect & Comp Engn, IL-84105 Beer Sheva, IsraelBar Ilan Univ, Faculty Engn, IL-52900 Ramat Gan, Israel
Cohen, Moshik
Abulafia, Yossi
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机构:
Bar Ilan Univ, Inst Nanotechnol & Adv Mat, IL-52900 Ramat Gan, IsraelBar Ilan Univ, Faculty Engn, IL-52900 Ramat Gan, Israel
机构:
Zhejiang Univ City Coll, Sch Informat & Elect Engn, Hangzhou, Peoples R China
Hangzhou Dianzi Univ, Sch Elect & Informat, Hangzhou, Peoples R ChinaZhejiang Univ City Coll, Sch Informat & Elect Engn, Hangzhou, Peoples R China
Peng, Liang
Ren, Hang
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机构:
Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun, Peoples R ChinaZhejiang Univ City Coll, Sch Informat & Elect Engn, Hangzhou, Peoples R China
Ren, Hang
Liu, Ya-Chao
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机构:
Shenzhen Univ, Inst Microscale Optoelect, Shenzhen, Peoples R ChinaZhejiang Univ City Coll, Sch Informat & Elect Engn, Hangzhou, Peoples R China
Liu, Ya-Chao
Lan, Tian-Wei
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机构:
Hangzhou Dianzi Univ, Sch Elect & Informat, Hangzhou, Peoples R ChinaZhejiang Univ City Coll, Sch Informat & Elect Engn, Hangzhou, Peoples R China
Lan, Tian-Wei
Xu, Kui-Wen
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机构:
Hangzhou Dianzi Univ, Sch Elect & Informat, Hangzhou, Peoples R ChinaZhejiang Univ City Coll, Sch Informat & Elect Engn, Hangzhou, Peoples R China
Xu, Kui-Wen
Ye, De-Xin
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机构:
Zhejiang Univ, Lab Appl Res Electromagnet ARE, Hangzhou, Peoples R ChinaZhejiang Univ City Coll, Sch Informat & Elect Engn, Hangzhou, Peoples R China
Ye, De-Xin
Sun, Hong-Bo
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机构:
Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun, Peoples R China
Tsinghua Univ, Dept Precis Instrument, State Key Lab Precis Measurement Technol & Instru, Beijing, Peoples R ChinaZhejiang Univ City Coll, Sch Informat & Elect Engn, Hangzhou, Peoples R China
Sun, Hong-Bo
Xu, Su
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机构:
Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun, Peoples R ChinaZhejiang Univ City Coll, Sch Informat & Elect Engn, Hangzhou, Peoples R China
Xu, Su
Chen, Hong-Sheng
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机构:
Zhejiang Univ, Coll Informat Sci & Elect Engn, Interdisciplinary Ctr Quantum Informat, State Key Lab Modern Opt Instrumentat, Hangzhou, Peoples R ChinaZhejiang Univ City Coll, Sch Informat & Elect Engn, Hangzhou, Peoples R China
Chen, Hong-Sheng
Zhang, Shuang
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机构:
Univ Hong Kong, Dept Phys, Hong Kong, Peoples R China
Univ Hong Kong, Dept Elect & Elect Engn, Hong Kong, Peoples R ChinaZhejiang Univ City Coll, Sch Informat & Elect Engn, Hangzhou, Peoples R China