Abstract
A new algorithm of the dislocation localization is suggested. It is based on the analysis of projections field of phase gradients. Accuracy of the algorithm is verified by numerical simulation. Special attention is focused on the precision of singular points (wavefront dislocations) screening. The algorithm is evaluated with respect to others and its advantages and drawbacks are cleared up. The method described can be included in the software of the Hartmann's sensor and be used in the full-scale experiments. Also the original algorithm of phase reconstruction is proposed and its characteristics are estimated. This algorithm requires detection of dislocation coordinates so it should be used together with the algorithm of dislocation localization. In the paper the comparison is performed of the proposed algorithm with the well known Fried's algorithm. After that the phase reconstruction technique is included into the model of a typical adaptive optics system.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Editors | M.T. Gruneisen, J.D. Gonglewski, M.K. Giles |
| Pages | 1-11 |
| Number of pages | 11 |
| Volume | 5894 |
| DOIs | |
| Publication status | Published - 2005 |
| Event | Advanced Wavefront Control: Methods, Devices, and Applications III - San Diego, CA, United States Duration: 31 Jul 2005 → 2 Aug 2005 |
Other
| Other | Advanced Wavefront Control: Methods, Devices, and Applications III |
|---|---|
| Country | United States |
| City | San Diego, CA |
| Period | 31.7.05 → 2.8.05 |
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Keywords
- Detection of singular point positions
- Optical vortices
- Phase reconstruction
- Singular optics
- Singular points
- Wave-front dislocations
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
Cite this
Localization of optical vortices and reconstruction of wavefront with screw dislocations. / Aksenov, Valerii P.; Izmailov, Igor V.; Kanev, Feodor Yu; Starikov, Feodor A.
Proceedings of SPIE - The International Society for Optical Engineering. ed. / M.T. Gruneisen; J.D. Gonglewski; M.K. Giles. Vol. 5894 2005. p. 1-11 589407.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Localization of optical vortices and reconstruction of wavefront with screw dislocations
AU - Aksenov, Valerii P.
AU - Izmailov, Igor V.
AU - Kanev, Feodor Yu
AU - Starikov, Feodor A.
PY - 2005
Y1 - 2005
N2 - A new algorithm of the dislocation localization is suggested. It is based on the analysis of projections field of phase gradients. Accuracy of the algorithm is verified by numerical simulation. Special attention is focused on the precision of singular points (wavefront dislocations) screening. The algorithm is evaluated with respect to others and its advantages and drawbacks are cleared up. The method described can be included in the software of the Hartmann's sensor and be used in the full-scale experiments. Also the original algorithm of phase reconstruction is proposed and its characteristics are estimated. This algorithm requires detection of dislocation coordinates so it should be used together with the algorithm of dislocation localization. In the paper the comparison is performed of the proposed algorithm with the well known Fried's algorithm. After that the phase reconstruction technique is included into the model of a typical adaptive optics system.
AB - A new algorithm of the dislocation localization is suggested. It is based on the analysis of projections field of phase gradients. Accuracy of the algorithm is verified by numerical simulation. Special attention is focused on the precision of singular points (wavefront dislocations) screening. The algorithm is evaluated with respect to others and its advantages and drawbacks are cleared up. The method described can be included in the software of the Hartmann's sensor and be used in the full-scale experiments. Also the original algorithm of phase reconstruction is proposed and its characteristics are estimated. This algorithm requires detection of dislocation coordinates so it should be used together with the algorithm of dislocation localization. In the paper the comparison is performed of the proposed algorithm with the well known Fried's algorithm. After that the phase reconstruction technique is included into the model of a typical adaptive optics system.
KW - Detection of singular point positions
KW - Optical vortices
KW - Phase reconstruction
KW - Singular optics
KW - Singular points
KW - Wave-front dislocations
UR - http://www.scopus.com/inward/record.url?scp=29344439152&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=29344439152&partnerID=8YFLogxK
U2 - 10.1117/12.622658
DO - 10.1117/12.622658
M3 - Conference contribution
VL - 5894
SP - 1
EP - 11
BT - Proceedings of SPIE - The International Society for Optical Engineering
A2 - Gruneisen, M.T.
A2 - Gonglewski, J.D.
A2 - Giles, M.K.
ER -