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Inhomogeneous microlens device for near-field focusing, beam forming, and high-efficiency far-field device implementation

A device and optically transparent technology, applied in the field of microlens devices, can solve the problems of lack of control of focal spot position, complex design, etc., and achieve high diffraction efficiency and easy manufacturing

Pending Publication Date: 2021-06-29
INTERDIGITAL CE PATENT HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The performance of this planar lens has been optimized, but at the cost of a complex design
Furthermore, most proposals to date lack the possibility to control the focal spot position

Method used

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  • Inhomogeneous microlens device for near-field focusing, beam forming, and high-efficiency far-field device implementation
  • Inhomogeneous microlens device for near-field focusing, beam forming, and high-efficiency far-field device implementation
  • Inhomogeneous microlens device for near-field focusing, beam forming, and high-efficiency far-field device implementation

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Experimental program
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Embodiment Construction

[0080] 5.1 General principles

[0081] There is a number of near-field focus components that implement sub-wave resolution, which is interested in many of today's and future nano photon applications. The photonic nanojjjji is a narrow high intensity light radiation flux formed by the vicinity of the shadow surface of the shadow surface of the diameter and the incident photoelectric symmetry. The physical origin of photon nanometric jet is derived from diffraction and interference (constructive and destructive) of radiation of particles (SC Kong, A.SAHAKIAN, A.TAFLOVE and V.BACKMAN, "photon nanomei radiation Photonic Nanojet-EnabledOptical Data Storage, Substation, Volume 16, No. 18, 2008; CHEN et al, "Optical Metrology Using A Photonic Nanojet", using photon nanoji U.S. Patent US Patent US 7,394,535 BL, 2008; V.Pacheco-Pena, M.beruete, I v.minin and ovminin, "Terajets Produced by Dielectric Cuboids produced by dielectric rectangular cubic", Applied Physics Express, 105 Volume, 084...

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Abstract

The disclosure relates to an optically-transparent device (100) comprising a main part (10) of dielectric material having a refractive index n2. Such an optically-transparent device is configured for forming a field intensity distribution in a near zone of said device, from electromagnetic waves incidentally illuminating said device, when said device is embedded in a dielectric material having a refractive index n1 lower than said refractive index n2. Said device (100) further comprises at least one insert (11) of dielectric material having a refractive index n3 lower than said refractive index n2 and different from said refractive index n1, said at least one insert being inserted into said main part, and each one of said at least one insert and said main part having respectively an edge of a step formed by a base surface of said at least one insert or said main part and a lateral surface of said at least one insert or said main part, said base surface being defined with respect to an arrival direction of said electromagnetic wave. The disclosure also relates to a system comprising a plurality of above-described optically-transparent devices uniformly distributed within a dielectric host medium, so as to form a far-field device for far-field applications.

Description

[0001] 1. Technical field [0002] The present disclosure generally relates to a microlens device for focused electromagnetic waves (including visible light). More specifically, the microlense device according to the present disclosure can be used for near field focus and beamforming, and can be used as a far field application for far field devices. [0003] 2. Background [0004] This section is intended to introduce the readers to various aspects of the techniques that may be related to the disclosure described below and / or claimed. It is believed that this discussion helps to provide background information to the reader to better understand the various aspects of the present disclosure. Therefore, it should be understood that these statements should be read here, rather than acting as a recognition of prior art. [0005] Electromagnetic wave focusing is an established manner for localization of the size of the field strength, and enhances the efficiency of a series of devices i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/56
CPCG02B27/56G02B2207/101G02B3/0043G02B5/1814G02B27/0955
Inventor 瓦尔特·德拉齐克奥克萨那·什拉姆科娃米特拉·达姆加尼安
Owner INTERDIGITAL CE PATENT HLDG