Polarization-Insensitive Metalenses at Visible Wavelengths

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Metalenses at visible wavelengths: Diffraction-limited focusing and subwavelength resolution imaging.

Subwavelength resolution imaging requires high numerical aperture (NA) lenses, which are bulky and expensive. Metasurfaces allow the miniaturization of conventional refractive optics into planar structures. We show that high-aspect-ratio titanium dioxide metasurfaces can be fabricated and designed as metalenses with NA = 0.8. Diffraction-limited focusing is demonstrated at wavelengths of 405, 5...

متن کامل

Engineering polarization entanglement at telecom wavelengths

We report a versatile guided-wave approach for engineering high-quality polarization entanglement at telecom wavelengths. This scheme enables manipulating photonic bandwidths ranging from 25 MHz to 1 THz, and creating any two-photon state. OCIS codes: 270.5565, 060.5565, 190.4390. 1. Entanglement forquantum network applications at telecom wavelengths Entanglement is a key resource for fundament...

متن کامل

A polychromatic approach to far-field superlensing at visible wavelengths

Breaking the diffraction barrier in the visible part of the electromagnetic spectrum is of fundamental importance. Far-field subwavelength focusing of light could, for instance, drastically broaden the possibilities available in nanolithography, light-matter interactions and sensing at the nanoscale. Similarly, imaging with a nanometric resolution could result in incredible breakthroughs in sof...

متن کامل

Precise Measurement of Lunar Spectral Irradiance at Visible Wavelengths

We report a measurement of lunar spectral irradiance with an uncertainty below 1 % from 420 nm to 1000 nm. This measurement uncertainty meets the stability requirement for many climate data records derived from satellite images, including those for vegetation, aerosols, and snow and ice albedo. It therefore opens the possibility of using the Moon as a calibration standard to bridge gaps in sate...

متن کامل

Two-dimensional imaging by far-field superlens at visible wavelengths.

We report that two-dimensional (2D) sub-diffraction-limited images can be theoretically reconstructed by a new metamaterial far-field superlens. The metamaterial far-field superlens, composed of a metal-dielectric multilayer and a one-dimensional (1D) subwavelength grating, can work over a broad range of visible wavelengths intrinsically. The imaging principle and the reconstruction process are...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Nano Letters

سال: 2016

ISSN: 1530-6984,1530-6992

DOI: 10.1021/acs.nanolett.6b03626