Abstract

A fast and automated approach to measuring two-photon fluorescence excitation (TPE) spectra of fluorophores with high resolution (2nm) by pulse shaping ultrabroad-bandwidth femtosecond laser pulses is demonstrated. Selective excitation in the range of 675990nm was achieved by imposing a series of specially designed phase and amplitude masks on the excitation pulses using a pulse shaper. The method eliminates the need for laser tuning and is, thus, suitable for non-laser-expert use. The TPE spectrum of Fluorescein was compared with independent measurements and the spectra of the pH-sensitive dye 8-hydroxypyrene-1,3,6-trisulfonic acid (HPTS) in acidic and basic environments were measured for the first time using this approach.

© 2010 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Two-photon fluorescence excitation cross sections of biomolecular probes from 690 to 960 nm

Marius A. Albota, Chris Xu, and Watt W. Webb
Appl. Opt. 37(31) 7352-7356 (1998)

Measurement of two-photon excitation spectra of fluorescent proteins with nonlinear Fourier-transform spectroscopy

Hiroshi Hashimoto, Keisuke Isobe, Akira Suda, Fumihiko Kannari, Hiroyuki Kawano, Hideaki Mizuno, Atsushi Miyawaki, and Katsumi Midorikawa
Appl. Opt. 49(17) 3323-3329 (2010)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription