Two-photon imaging to a depth of 1000 μm in living brains by use of a Ti:Al2O3 regenerative amplifier

被引:513
作者
Theer, P [1 ]
Hasan, MT [1 ]
Denk, W [1 ]
机构
[1] Max Planck Inst Med Res, D-69120 Heidelberg, Germany
关键词
D O I
10.1364/OL.28.001022
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
It is shown that two-photon fluorescence images can be obtained throughout almost the entire gray matter of the mouse neocortex by using optically amplified femtosecond pulses. The achieved imaging depth approaches the theoretical limit set by excitation of out-of-focus fluorescence. (C) 2003 Optical Society of America.
引用
收藏
页码:1022 / 1024
页数:3
相关论文
共 21 条
[1]   Ultra-deep two-photon fluorescence excitation in turbid media [J].
Beaurepaire, E ;
Oheim, M ;
Mertz, J .
OPTICS COMMUNICATIONS, 2001, 188 (1-4) :25-29
[2]   New modal wave-front sensor: application to adaptive confocal fluorescence microscopy and two-photon excitation fluorescence microscopy [J].
Booth, MJ ;
Neil, MAA ;
Wilson, T .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 2002, 19 (10) :2112-2120
[3]   Generation of 90-nJ pulses with a 4-MHz repetition-rate Kerr-lens mode-locked Ti:Al2O3 laser operating with net positive and negative intracavity dispersion [J].
Cho, SH ;
Kärtner, FX ;
Morgner, U ;
Ippen, EP ;
Fujimoto, JG ;
Cunningham, JE ;
Knox, WH .
OPTICS LETTERS, 2001, 26 (08) :560-562
[4]   2-PHOTON LASER SCANNING FLUORESCENCE MICROSCOPY [J].
DENK, W ;
STRICKLER, JH ;
WEBB, WW .
SCIENCE, 1990, 248 (4951) :73-76
[5]   ANATOMICAL AND FUNCTIONAL IMAGING OF NEURONS USING 2-PHOTON LASER-SCANNING MICROSCOPY [J].
DENK, W ;
DELANEY, KR ;
GELPERIN, A ;
KLEINFELD, D ;
STROWBRIDGE, BW ;
TANK, DW ;
YUSTE, R .
JOURNAL OF NEUROSCIENCE METHODS, 1994, 54 (02) :151-162
[6]  
DENK W, 2001, Patent No. 6249379
[7]   Frequency-resolved optical gating measurement of ultrashort pulses passing through a high numerical aperture objective [J].
Fittinghoff, DN ;
Millard, AC ;
Squier, JA ;
Müller, M .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 1999, 35 (04) :479-486
[8]   New developments in multiphoton microscopy [J].
Helmchen, F ;
Denk, W .
CURRENT OPINION IN NEUROBIOLOGY, 2002, 12 (05) :593-601
[9]   Highly nonlinear photodamage in two-photon fluorescence microscopy [J].
Hopt, A ;
Neher, E .
BIOPHYSICAL JOURNAL, 2001, 80 (04) :2029-2036
[10]   Fluctuations and stimulus-induced changes in blood flow observed in individual capillaries in layers 2 through 4 of rat neocortex [J].
Kleinfeld, D ;
Mitra, PP ;
Helmchen, F ;
Denk, W .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1998, 95 (26) :15741-15746