Title :
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
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;
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
DOI :
10.1109/CLEO.1999.840599
