Broadband and linear polarization metasurface carpet cloak in the visible
- Univ. of California, Berkeley, CA (United States); Univ. of California San Diego, La Jolla, CA (United States)
- Univ. of California, Berkeley, CA (United States); Univ. of California San Diego, La Jolla, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
In the past few years, carpet cloaking has attracted interest because of its feasibility at optical frequencies and potential in stealth technologies. Metasurfaces have been proposed as a method to engineer ultra-thin carpet cloaking surfaces due to their abilities to manipulate wavefronts, polarization, and phase at subwavelength scale. However, achieving broadband carpet cloaking with a significant bandwidth is one of the key remaining challenges for metasurface designs. To date, broadband carpet cloaking based on metasurfaces has not been achieved, and operation has been limited to discrete wavelengths. In this work, we propose and numerically demonstrate a novel metasurface design for broadband carpet cloaking with linear polarization at visible wavelengths from 650 nm to 800 nm. Overall, our proposed method is a promising approach for broadband structured interfaces.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Univ. of California, San Diego, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); National Science Foundation (NSF); US Office of Naval Research (ONR)
- Grant/Contract Number:
- AC02-05CH11231; EE0007341; ECCS-155402; N00014-17-1-2671
- OSTI ID:
- 1658354
- Alternate ID(s):
- OSTI ID: 1524130; OSTI ID: 1833574
- Journal Information:
- Optics Letters, Vol. 44, Issue 12; ISSN 0146-9592
- Publisher:
- Optical Society of America (OSA)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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