Optical nanostructures in 2D for wide-diameter and broadband beam collimation
نویسندگان
چکیده
منابع مشابه
Optical nanostructures in 2D for wide-diameter and broadband beam collimation.
Eliminating curved refracting lensing components used in conventional projection, imaging and sensing optical assemblies, is critical to enable compactness and miniaturisation of optical devices. A suitable means is replacing refracting lenses with two-dimensional optical media in flat-slab form, to achieve an equivalent optical result. One approach, which has been the focus of intense research...
متن کاملDestructive impact of imperfect beam collimation in extraordinary optical transmission.
We investigate the difference between analytic predictions, numerical simulations, and experiments measuring the transmission of energy through subwavelength, periodically arranged holes in a metal film. At normal incidence, theory predicts a sharp transmission minimum when the wavelength is equal to the periodicity, and sharp transmission maxima at one or more nearby wavelengths. In experiment...
متن کاملOptical phase singularities in detection of laser beam collimation.
Optical phase singularities, also called optical vortices, are known to have applications in various branches of optics. Here the role played by optical vortices in collimation testing is explained. Interference and a diffractive experimental setup in which the presence of an optical vortex permits collimation testing are presented. It is shown that the moire fringes that aid in collimation det...
متن کاملEffect of Sn Doping on Structural and Optical Properties of 2D α-MoO3 Nanostructures
Undoped and Tin (Sn) doped Molybdenum trioxide (α-MoO3) nanostructured thin films (which has lamellar (2D) structure) have been prepared using a simple and cost effective technique of spray pyrolysis on glass substrates at 450 ℃. Surface morphology, optical and structural properties of samples have been investigated using FESEM, UV-Vis spectroscopy and XRD analysis techniques, respectively. FES...
متن کاملIonization Beam Loss and Collimation in SIS18
Introduction Ionization of beam ions, especially at operation with intermediate charge states, combined with a strongly dynamic residual gas pressure may create major beam loss. The first experimental evidence has been obtained in SIS18 machine experiments in 2001 with U-ion beams. Operation with intermediate charge states is in general required to minimize the incoherent space charge tune shif...
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: Scientific Reports
سال: 2016
ISSN: 2045-2322
DOI: 10.1038/srep18767