Wavefront correction with a 37-actuator ferrofluid deformable mirror

被引：51

作者：

Brousseau, Denis ^{[1
,2
]}

Borra, Ermanno F. ^{[1
,2
]}

Thibault, Simon ^{[3
]}

机构：

[1] Univ Laval, Dept Phys Genie Phys & Opt, Ste Foy, PQ G1K 7P4, Canada

[2] Univ Laval, Ctr Opt Photon & Laser, Ste Foy, PQ G1K 7P4, Canada

[3] Immervis, Quebec City, PQ H3A 2A5, Canada

来源：

OPTICS EXPRESS | 2007年 / 15卷 / 26期

关键词：

D O I：

10.1364/OE.15.018190

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This paper discusses an innovative low-cost deformable mirror made of a magnetic liquid (ferrofluid) whose surface is actuated by an hexagonal array of small current carrying coils. Predicted and experimental performances of a 37-actuator ferrofluid deformable mirror are presented along with wavefront correction examples. We show the validity of the model used to compute the actuators currents to obtain a desired wavefront shape. We demonstrate that the ferrofluid deformable mirror can correct a 11 mu m low order aberrated wavefront to a residual RMS error of 0.05 mu m corresponding to a Strehl ratio of 0.82. (c) 2007 Optical Society of America.

引用

页码：18190 / 18199

页数：10

共 20 条

[1]

Babcock H. W., 1953, PUBL ASTRON SOC PAC, V65, P229, DOI DOI 10.1086/126606

[2] Large magnetic liquid mirrors [J].

Borra, EF ;

Brousseau, D ;

Vincent, A .

ASTRONOMY & ASTROPHYSICS, 2006, 446 (01) :389-393

[3] Nanoengineered astronomical optics [J].

Borra, EF ;

Ritcey, AM ;

Bergamasco, R ;

Laird, P ;

Gingras, J ;

Dallaire, M ;

Da Silva, L ;

Yockell-Lelievre, H .

ASTRONOMY & ASTROPHYSICS, 2004, 419 (02) :777-782

[4] LIQUID MIRRORS - OPTICAL SHOP TESTS AND CONTRIBUTIONS TO THE TECHNOLOGY [J].

BORRA, EF ;

CONTENT, R ;

GIRARD, L ;

SZAPIEL, S ;

TREMBLAY, LM ;

BOILY, E .

ASTROPHYSICAL JOURNAL, 1992, 393 (02) :829-847

[5] A magnetic liquid deformable mirror for high stroke and low order axially symmetrical aberrations. [J].

Brousseau, Denis ;

Borra, Ermanno F. ;

Jean-Ruel, Hubert ;

Parent, Jocelyn ;

Ritcey, Anna .

OPTICS EXPRESS, 2006, 14 (24) :11486-11493

[6] A search for peculiar objects with the NASA Orbital Debris Observatory 3 meter liquid mirror telescope [J].

Cabanac, RA ;

Borra, EF ;

Beauchemin, M .

ASTROPHYSICAL JOURNAL, 1998, 509 (01) :309-323

[7] University of British Columbia NASA Multi-Narrowband Survey. I. Description and photometric properties of the survey [J].

Hickson, P ;

Mulrooney, MK .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1998, 115 (01) :35-42

[8] Deformable mirrors based on magnetic liquids [J].

Laird, PR ;

Borra, EF ;

Bergamasco, R ;

Gingras, J ;

Truong, L ;

Ritcey, AM .

ADVANCEMENTS IN ADAPTIVE OPTICS, PTS 1-3, 2004, 5490 :1493-1501

[9] Time dependence of the magnetic grain concentration and secondary grain aggregation in ferronematic lyotropic liquid crystals subjected to magnetic field gradients [J].

Matuo, CY ;

Neto, AMF .

PHYSICAL REVIEW E, 1999, 60 (02) :1815-1820

[10]

Mendelev VS, 2004, PHYS REV E, V70, DOI 10.1103/PhysRevE.70.051502

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