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Tytuł pozycji:

Enhanced Second Harmonic Generation from Ferroelectric HfO 2 -Based Hybrid Metasurfaces.

Tytuł :
Enhanced Second Harmonic Generation from Ferroelectric HfO 2 -Based Hybrid Metasurfaces.
Autorzy :
Qin J; National Engineering Center of Electromagnetic Radiation Wave Control Materials, School of Electronic Science and Engineering , University of Electronic Science and Technology of China , Chengdu 610054 , China.
Huang F; National Engineering Center of Electromagnetic Radiation Wave Control Materials, School of Electronic Science and Engineering , University of Electronic Science and Technology of China , Chengdu 610054 , China.
Li X; School of Materials Science and Engineering, National Institute for Advanced Materials , Nankai University , Tongyan Road 38 , Tianjin 300350 , P. R. China.; Institute for Molecules and Materials (IMM) , Radboud University , Heyendaalseweg 135 , 6525AJ Nijmegen , The Netherlands.
Deng L; National Engineering Center of Electromagnetic Radiation Wave Control Materials, School of Electronic Science and Engineering , University of Electronic Science and Technology of China , Chengdu 610054 , China.
Kang T; National Engineering Center of Electromagnetic Radiation Wave Control Materials, School of Electronic Science and Engineering , University of Electronic Science and Technology of China , Chengdu 610054 , China.
Markov A; INRS-Énergie , Matériaux et Télécommunications , Varennes , QC G1K 9A9 , Canada.
Yue F; INRS-Énergie , Matériaux et Télécommunications , Varennes , QC G1K 9A9 , Canada.
Chen Y; College of Mechanical and Vehicle Engineering , Hunan University , Changsha 410082 , China.
Wen X; Division of Physics and Applied Physics, School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371.
Liu S; Division of Physics and Applied Physics, School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371.
Xiong Q; Division of Physics and Applied Physics, School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371.
Semin S; Institute for Molecules and Materials (IMM) , Radboud University , Heyendaalseweg 135 , 6525AJ Nijmegen , The Netherlands.
Rasing T; Institute for Molecules and Materials (IMM) , Radboud University , Heyendaalseweg 135 , 6525AJ Nijmegen , The Netherlands.
Modotto D; Dipartimento di Ingegneria dell'Informazione , Università di Brescia , via Branze 38 , 25123 Brescia , Italy.
Morandotti R; INRS-Énergie , Matériaux et Télécommunications , Varennes , QC G1K 9A9 , Canada.; ITMO University , St. Petersburg 197101 , Russia.; Institute of Fundamental and Frontier Sciences , University of Electronic Science and Technology of China , Chengdu 610054 , China.
Xu J; School of Materials Science and Engineering, National Institute for Advanced Materials , Nankai University , Tongyan Road 38 , Tianjin 300350 , P. R. China.
Duan H; College of Mechanical and Vehicle Engineering , Hunan University , Changsha 410082 , China.
Bi L; National Engineering Center of Electromagnetic Radiation Wave Control Materials, School of Electronic Science and Engineering , University of Electronic Science and Technology of China , Chengdu 610054 , China.
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Źródło :
ACS nano [ACS Nano] 2019 Feb 26; Vol. 13 (2), pp. 1213-1222. Date of Electronic Publication: 2019 Jan 23.
Typ publikacji :
Journal Article
Język :
English
Imprint Name(s) :
Original Publication: Washington D.C. : American Chemical Society
Contributed Indexing :
Keywords: ferroelectric Y:HfO2; metasurface; nonlinear photonics; plasmonics; second harmonic generation
Entry Date(s) :
Date Created: 20190111 Latest Revision: 20191120
Update Code :
20210210
DOI :
10.1021/acsnano.8b06308
PMID :
30629429
Czasopismo naukowe
Integrated nonlinear metasurfaces leading to high-efficiency optical second harmonic generation (SHG) are highly desirable for optical sensing, imaging, and quantum photonic systems. Compared to traditional metal-only metasurfaces, their hybrid counterparts, where a noncentrosymmetric nonlinear photonic material is incorporated in the near-field of a metasurface, can significantly boost SHG efficiency. However, it is difficult to integrate such devices on-chip due to material incompatibilities, thickness scaling challenges, and the narrow band gaps of nonlinear optical materials. Here, we demonstrate significantly enhanced SHG in on-chip integrated metasurfaces by using nanometer thin films of ferroelectric Y:HfO 2 . This material has the merit of CMOS compatibility, ultraviolet transparency up to 250 nm, and significant scalability down to sub-10 nm when deposited on silicon. We observe a 20-fold magnitude enhancement of the SHG intensity from the hybrid metasurface compared to a bare ferroelectric HfO 2 thin film. Moreover, a 3-fold SHG enhancement is observed from the hybrid metasurface compared to a control structure using nonferroelectric HfO 2 , demonstrating a major contribution to the SHG signal from ferroelectric Y:HfO 2 . The effective second-order nonlinear optical coefficient χ (2) of Y:HfO 2 is determined to be 6.0 ± 0.5 pm/V, which is comparable to other complex nonlinear photonic oxide materials. Our work provides a general pathway to build an efficient on-chip nanophotonic nonlinear light source for SHG using ferroelectric HfO 2 thin films.

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