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Title: Super resolution for magneto-optical microscopy

Patent ·
OSTI ID:1986714

Sub-diffraction limited magneto-optical microscopy, such as Kerr or Faraday effect microscopy, provide many advantages to fields of science and technology for measuring, or imaging, the magnetization structures and magnetization domains of materials. Disclosed is a method and system for performing sub-diffraction limited magneto-optic microscopy. The method includes positioning a microlens or microlens layer relative to a surface of a sample to image the surface of the sample, forming a photonic nanojet to probe the surface of the sample, and receiving light reflected by the surface of the sample or transmitted through the sample at an imaging sensor. The methods and associated systems and devices enable sub-diffraction limited imaging of magnetic domains at resolutions 2 to 8 times the classical diffraction limit.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-06CH11357
Assignee:
UChicago Argonne, LLC (Chicago, IL)
Patent Number(s):
11,474,283
Application Number:
16/916,895
OSTI ID:
1986714
Resource Relation:
Patent File Date: 06/30/2020
Country of Publication:
United States
Language:
English

References (21)

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Laser induced removal of spherical particles from silicon wafers journal February 2000
Spatial control of the optical focusing properties of photonic nanojets patent September 2019
An Image Sensor Comprising at Least One Sensing Unit with Light Guiding Means patent-application May 2020
Photodetector focal plane array systems and methods patent June 2016
Optical virtual imaging at 50 nm lateral resolution with a white-light nanoscope journal March 2011
Device for forming at least one focused beam in the near zone, from incident electromagnetic waves patent June 2020
Photodetector focal plane array systems and methods based on microcomponents with arbitrary shapes patent March 2020
Arrangement and method of determining properties of a surface and subsurface structures patent July 2019
Turning a normal microscope into a super-resolution instrument using a scanning microlens array journal January 2018
Magnetisation switching of FePt nanoparticle recording medium by femtosecond laser pulses journal June 2017
System and Method for Performing Automated Analysis of Air Samples patent-application March 2021
Super-resolution microscopy methods and systems enhanced by dielectric microspheres or microcylinders used in combination with metallic nanostructures patent December 2017
Method of amplifying magneto-optical kerr effect by using photon crystal structures, and photon crystal having amplified magneto-optical kerr effect, method of fabricating photon crystal patent August 2015
Methods and systems for super-resolution optical imaging using high-index of refraction microspheres and microcylinders patent August 2019
Devices, Methods, and Systems Relating to Super Resolution Imaging patent-application October 2017
Photonic nanojet enhancement of backscattering of light by nanoparticles: a potential novel visible-light ultramicroscopy technique journal January 2004
Heat assisted magnetic recording withinterlaced high-power heated and low-power heated tracks patent August 2015

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