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Title: Method and apparatus for wavefront sensing

Abstract

A method for performing optical wavefront sensing includes providing an amplitude transmission mask having a light input side, a light output side, and an optical transmission axis passing from the light input side to the light output side. The amplitude transmission mask is characterized by a checkerboard pattern having a square unit cell of size Λ. The method also includes directing an incident light field having a wavelength λ to be incident on the light input side and propagating the incident light field through the amplitude transmission mask. The method further includes producing a plurality of diffracted light fields on the light output side and detecting, at a detector disposed a distance L from the amplitude transmission mask, an interferogram associated with the plurality of diffracted light fields. The relation is satisfied, where n is an integer greater than zero.

Inventors:
Issue Date:
Research Org.:
Ram Photonics, LLC, San Diego, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1568700
Patent Number(s):
10371580
Application Number:
15/903,489
Assignee:
Ram Photonics, LLC (San Diego, CA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
G - PHYSICS G03 - PHOTOGRAPHY G03F - PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES
DOE Contract Number:  
FC52-08NA28302
Resource Type:
Patent
Resource Relation:
Patent File Date: 02/23/2018
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Bahk, Seung-Whan. Method and apparatus for wavefront sensing. United States: N. p., 2019. Web.
Bahk, Seung-Whan. Method and apparatus for wavefront sensing. United States.
Bahk, Seung-Whan. Tue . "Method and apparatus for wavefront sensing". United States. https://www.osti.gov/servlets/purl/1568700.
@article{osti_1568700,
title = {Method and apparatus for wavefront sensing},
author = {Bahk, Seung-Whan},
abstractNote = {A method for performing optical wavefront sensing includes providing an amplitude transmission mask having a light input side, a light output side, and an optical transmission axis passing from the light input side to the light output side. The amplitude transmission mask is characterized by a checkerboard pattern having a square unit cell of size Λ. The method also includes directing an incident light field having a wavelength λ to be incident on the light input side and propagating the incident light field through the amplitude transmission mask. The method further includes producing a plurality of diffracted light fields on the light output side and detecting, at a detector disposed a distance L from the amplitude transmission mask, an interferogram associated with the plurality of diffracted light fields. The relation is satisfied, where n is an integer greater than zero.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {8}
}

Works referenced in this record:

Complex index refraction tomography with sub λ/6-resolution
patent, January 2015


Broadband ultrashort pulse measuring device using non-linear electronic components
patent, February 2000


Method and apparatus for pattern analysis
patent, November 1976


System and methods for wavefront measurement
patent, October 2008


Compact achromatic optical interferometer of the three-wave lateral shearing type
patent, November 2010


Coded aperture imager comprising a coded diffractive mask
patent, April 2011