Aberration correction in scanning ultrafast confocal microscopy using a deformable mirror

Author

Meunier, M.H. ; Albert, O. ; Cheriaux, G. ; Norris, T. ; Mourou, G. ; Vdovin, G.

Author_Institution

Center for Ultrafast Opt. Sci., Michigan Univ., Ann Arbor, MI, USA

fYear

1999

fDate

28-28 May 1999

Firstpage

21

Abstract

Summary form only given. Multiphoton confocal microscopy with extremely short (10 fs) optical pulses requires reflective optics, and ultimately requires control of the spatial wavefront in order to achieve diffraction-limited performance. We have demonstrated the use of a deformable mirror to adaptively optimize the focusing of a 10-fs pulse in an imaging geometry. We optimize the second harmonic generation or two-photon fluorescence signal from our sample using a feedback loop based on a genetic algorithm. To improve the speed of the convergence of our algorithm we use a Zernike orthogonal basis to control the deformable mirror.

Keywords

adaptive optics; high-speed optical techniques; mirrors; near-field scanning optical microscopy; optical focusing; 10 fs; Zernike orthogonal; aberration correction; adaptive optics; adaptively optimize; deformable mirror; diffraction-limited performance; extremely short fs optical pulses; feedback loop; fs pulse focusing; genetic algorithm; imaging geometry; multiphoton confocal microscopy; reflective optics; scanning ultrafast confocal microscopy; second harmonic generation; spatial wavefront; two-photon fluorescence signal; Mirrors; Nonlinear optics; Optical control; Optical diffraction; Optical feedback; Optical harmonic generation; Optical microscopy; Optical pulses; Ultrafast optics; Ultraviolet sources;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1999. CLEO '99. Summaries of Papers Presented at the Conference on

Conference_Location

Baltimore, MD, USA

Print_ISBN

1-55752-595-1

Type

conf

DOI

10.1109/CLEO.1999.840599

Filename

840599