CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 10928 > Article
Presentation
8 March 2019 Metasurfaces in the near ultraviolet regime and their applications (Conference Presentation)
Hong Liu
Author Affiliations +
Proceedings Volume 10928, High Contrast Metastructures VIII; 109280S (2019) https://doi.org/10.1117/12.2508122
Event: SPIE OPTO, 2019, San Francisco, California, United States
Abstract
Optical metasurfaces comprise of ultrathin two-dimensional (2D) metal/dielectric phase shifters with subwavelength features (also referring to meta-atoms). With rigorous design on the size, shape and location of meta-atoms in the reflect- or transmit-arrays, it can precisely tailor the scattering properties of light which is different from the incident beam and the characteristics of interaction between incident light and metasurfaces can be engineered to realize many functions of traditional bulky elements such as lenses, gratings, mirrors, waveplates and etc. Early works motivated by ultrathin metallic structures to resonant with the incidence of electromagnetic field to manipulate the light with resonant or geometric phase. However, the material loss significantly limits the performance of plasmonic metasurfaces, in particular in the transmission mode of single layer structures. Dielectric geometric phase based on half wave plate is able to shape wavefronts but their challenging issue lies in the difficulty of simultaneous realization of high efficiency and large deflection angle due to the coupling between the elements. The coupling between neighboring meta-atoms is also remarkable in the case of Huygens’ metasurfaces, which heavily degrades its performance. The drive to make highly efficient dielectric metasurfaces has been the mandatory prerequisite for the futuristic development of planar metadevices and systems. To address those challenging issues, I will introduce our latest development on high transmission efficiency metasurfaces operating in near UV range using a transition metal oxide of higher band gap energy than titanium dioxide and demonstrate its various applications.
Conference Presentation
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Hong Liu "Metasurfaces in the near ultraviolet regime and their applications (Conference Presentation)", Proc. SPIE 10928, High Contrast Metastructures VIII, 109280S (8 March 2019); https://doi.org/10.1117/12.2508122
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Near ultraviolet
Dielectrics
Light scattering
Wave plates
Beam shaping
Laser scattering
Lenses
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top