Abstract
We observe a non-complementary dark-space produced when two Ronchi-grams, at zero-phase and π-phase, are overlapped and use these dark spaces to quantify Ronchi-grams. Diffraction and multiple beam interference effects narrow the Ronchi fringes created with a coherent point source illumination and prevent accurate determination of the geometrical fringe edges. The dark spaces created when the intensity of two Ronchi grams is added allow assessing the geometrical edge at the dark space middle providing a way to reduce measurement errors. We re-construct the wavefront deformation in a test beam with a 35-term Zernike polynomial. Experimental results are presented.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1854-1858 |
| Number of pages | 5 |
| Journal | Optics Express |
| Volume | 17 |
| Issue number | 3 |
| DOIs | |
| State | Published - Feb 2 2009 |
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ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Cite this
Ronchigram quantification via a non-complementary dark-space effect. / Lee, Sukmock; Sasian, Jose M.
In: Optics Express, Vol. 17, No. 3, 02.02.2009, p. 1854-1858.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Ronchigram quantification via a non-complementary dark-space effect
AU - Lee, Sukmock
AU - Sasian, Jose M
PY - 2009/2/2
Y1 - 2009/2/2
N2 - We observe a non-complementary dark-space produced when two Ronchi-grams, at zero-phase and π-phase, are overlapped and use these dark spaces to quantify Ronchi-grams. Diffraction and multiple beam interference effects narrow the Ronchi fringes created with a coherent point source illumination and prevent accurate determination of the geometrical fringe edges. The dark spaces created when the intensity of two Ronchi grams is added allow assessing the geometrical edge at the dark space middle providing a way to reduce measurement errors. We re-construct the wavefront deformation in a test beam with a 35-term Zernike polynomial. Experimental results are presented.
AB - We observe a non-complementary dark-space produced when two Ronchi-grams, at zero-phase and π-phase, are overlapped and use these dark spaces to quantify Ronchi-grams. Diffraction and multiple beam interference effects narrow the Ronchi fringes created with a coherent point source illumination and prevent accurate determination of the geometrical fringe edges. The dark spaces created when the intensity of two Ronchi grams is added allow assessing the geometrical edge at the dark space middle providing a way to reduce measurement errors. We re-construct the wavefront deformation in a test beam with a 35-term Zernike polynomial. Experimental results are presented.
UR - http://www.scopus.com/inward/record.url?scp=59749087325&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=59749087325&partnerID=8YFLogxK
U2 - 10.1364/OE.17.001854
DO - 10.1364/OE.17.001854
M3 - Article
VL - 17
SP - 1854
EP - 1858
JO - Optics Express
JF - Optics Express
SN - 1094-4087
IS - 3
ER -