Improved etching uniformity using equivalent electrodes on an unconventional, irregular membrane optical element for large aperture diffractive optical telescopes
نویسندگان
چکیده
منابع مشابه
Shared Aperture Diffractive Optical Element (ShADOE) Multiplexed Telescope
The Shared Aperture Diffractive Optical Element (ShADOE) is an Advanced Component Technology program to demonstrate the feasibility of combining several holographic optical elements (HOEs) into a single optic for use as the primary optic of a scanning telescope. The HOEs diffract the beam at a fixed elevation angle, nominally 30 to 55 degrees, but with the azimuthal pointing direction of each i...
متن کاملOptical aperture synthesis with electronically connected telescopes
Highest resolution imaging in astronomy is achieved by interferometry, connecting telescopes over increasingly longer distances and at successively shorter wavelengths. Here, we present the first diffraction-limited images in visual light, produced by an array of independent optical telescopes, connected electronically only, with no optical links between them. With an array of small telescopes,...
متن کاملResearch on the Design of an Optical Information Storage Sensing System Using a Diffractive Optical Element
This paper introduces a compact optical information storage sensing system. Applications of this system include longitudinal surface plasmon resonance detection of gold nanorods with a single femtosecond laser in three-dimensional space as well as data storage. A diffractive optical element (DOE) is applied in the system to separate the recording-reading beam from the servo beam. This allows us...
متن کاملWood's anomalies and spectral uniformity of focusing diffractive optical elements.
We report on simulations and measurements of focusing diffractive optical elements, fabricated as two-level binary optics. The diffractive optical elements are designed to separate and focus four specific wavelengths in the infrared. The simulations are based on a local linear grating model, and predict anomalies similar to Wood's anomalies known from grating diffraction theory. The anomalies a...
متن کاملDesign of an Improved Optical Filter Based on Dual-Curved PCRR for WDM Systems
In this paper, an optical filter based on a two dimensional photonic crystalring resonator (PCRR) with triangular lattice is designed and presented. For thispurpose, the effects of positioning, arrangement and the number of the inner rods of thedual-curved PCRR on the performance characteristics of our optical filter such as thetransmission coefficient and the quality factor have been fully inv...
متن کاملذخیره 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: Optics Express
سال: 2020
ISSN: 1094-4087
DOI: 10.1364/oe.410100