Propagation properties of hollow Gaussian beams through an optical system with a hard-edged aperture
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1.
Department of Physics, Luoyang Normal College, Luoyang 471022, China;
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2.
Institute of Laser Physics and Chemistry, Sichuan University, Chengdu 610064, China
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Received Date:
2005-12-30
Accepted Date:
2006-03-08
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Abstract
In order to study propagation properties of hollow beams through a paraxial optical ABCD system with a hard-edged circle aperture and a lens,the expressions for the propagation of hollow Gaussian beams through such a system are derived based on the Collins diffraction integral.The effects of an aperture,a lens and an aperture-lens system on the propagation properties of hollow Gaussian beams are studied and illustrated with numerical examples,which shows that both aperture and lens can shift the field of hollow Gaussian beams towards the source plane.It is also found that hollowness of the beam will be destroyed by the aperture,but not by the lens.The results of this study play a guiding role in the generation and application of hollow beams.
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References
|
[1]
|
ZHANG L,CAI Y J,LÜ X H.Theoretical and experimental study of new dark hollow beams[J].Acta Physica Sinica,2004,53(6):1777～1781(in Chinese). |
|
[2]
|
QIU J P,LIU N Ch,XIA Y et al.Generation of hollow laser beams and their applications in modern optics[J].Progress in Physics,2004,24(3):336～379. |
|
[3]
|
OVCHINNIKOV Y B,MANEK I,GRIMM R.Surface trap for Cs atoms based on evanescent-wavecooling[J].Phys Rev Lett,1997,79(12):2225～2228. |
|
[4]
|
SONG Y,MILAM D,HILL W T.Clarifying the concepts of wave propagation through intermittent media[J].Opt Lett,1999,24(24):1805～1087. |
|
[5]
|
SODING J,GRIMM R,OVCHINNIKOV Y B.Gravitational laser trap for atoms with evanescent-wave cooling[J].Opt Commun,1995,119:652～662. |
|
[6]
|
YIN J,ZHU Y,JHE W,WANG Y.Atom guiding and cooling in a dark hollow laser beam[J].Physics Review,1998,A58(1):509～513. |
|
[7]
|
YIN J,GAO W,WANG H et al.Generations of dark hollow beams and their applications in laser cooling of atoms and all optical-type Bose-Einstein condensation[J].Chinese Physics,2002,11(12):1157～1160. |
|
[8]
|
BALYKIN V I,LETOKHOV V S.The possibility of deep laser focusing of an atomic beam into the A-region[J].Opt Commun,1987,64:151～156. |
|
[9]
|
CAI,Y,LÜ X,LIU Q.Hollow Gaussian beams and their propagation properties[J].Opt Lett,2003,28(13):1084～1086. |
|
[10]
|
WANG X Q,LÜ B D.Focusing properties of Laguerre-Gaussian beams[J].Laser Technology,1996,20(3):185～190(in Chinese). |
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