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Title: Use of a focusing vortex lens as the objective in spiral phase contrast microscopy

Abstract

A method and objective apparatus are provided for implementing an enhanced phase contrast microscope. A focusing vortex lens, defined by a diffractive spiral zone plate (SZP) lens, is used for the objective for the phase contrast microscope. The SZP lens focuses and imparts a helical phase to incident illumination to image the specimen with spiral phase contrast. The spiral phase contrast microscope is sensitive to phase gradients in all sample axes. Replacing the objective of a microscope with the diffractive SZP lens of the invention immediately provides existing instruments with spiral phase contrast capability.

Inventors:
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531666
Patent Number(s):
7864415
Application Number:
11/856,403
Assignee:
U Chicago Argonne, LLC (Chicago, IL)
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
G - PHYSICS G21 - NUCLEAR PHYSICS G21K - TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR
DOE Contract Number:  
AC02-06CH11357; W-31-109-ENG-38
Resource Type:
Patent
Resource Relation:
Patent File Date: 2007-09-17
Country of Publication:
United States
Language:
English

Citation Formats

McNulty, Ian. Use of a focusing vortex lens as the objective in spiral phase contrast microscopy. United States: N. p., 2011. Web.
McNulty, Ian. Use of a focusing vortex lens as the objective in spiral phase contrast microscopy. United States.
McNulty, Ian. Tue . "Use of a focusing vortex lens as the objective in spiral phase contrast microscopy". United States. https://www.osti.gov/servlets/purl/1531666.
@article{osti_1531666,
title = {Use of a focusing vortex lens as the objective in spiral phase contrast microscopy},
author = {McNulty, Ian},
abstractNote = {A method and objective apparatus are provided for implementing an enhanced phase contrast microscope. A focusing vortex lens, defined by a diffractive spiral zone plate (SZP) lens, is used for the objective for the phase contrast microscope. The SZP lens focuses and imparts a helical phase to incident illumination to image the specimen with spiral phase contrast. The spiral phase contrast microscope is sensitive to phase gradients in all sample axes. Replacing the objective of a microscope with the diffractive SZP lens of the invention immediately provides existing instruments with spiral phase contrast capability.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {1}
}

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Works referenced in this record:

Phase contrast X-ray microscope
patent, August 1996


Multifocal zone plate
patent, July 1980


Variable spacing diffraction grating
patent, November 2003


Confocal microscope and height measurement method using the same
patent, June 2003


Achromatic fresnel optics for ultraviolet and x-ray radiation
patent, July 2005


Single-element objective lens for soft x-ray differential interference contrast microscopy
journal, January 2006


X-ray optics for phase differential contrast: Design, optimization, simulation, fabrication
conference, January 2000


Apparatus for inspecting mask
patent, February 2004


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