Abstract

Here, we combine three optical advancements to transient absorption microscopy in order to access the photodynamics in systems requiring stringent spatial and temporal resolution criteria. First, a broadband visible probe is generated by a commercial photonic crystal fiber. Second, a spatial light modulator-based pulse shaper is incorporated to reduce the pulse dispersion and improve temporal resolution. Third, 1.4 numerical aperture objectives for excitation and light collection provide optimal spatial resolution. The result of these improvements is a probe beam that spans 115 nm across the visible region yet maintains a 100  fs instrument response at the sample position. We demonstrate the capabilities of this microscope by imaging polystyrene beads in a solution of IR-144 dye, revealing aggregated species at the bead surfaces.

© 2018 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Actively shaped supercontinuum from a photonic crystal fiber for nonlinear coherent microspectroscopy

Bernhard von Vacano, Wendel Wohlleben, and Marcus Motzkus
Opt. Lett. 31(3) 413-415 (2006)

Compression of fiber supercontinuum pulses to the Fourier-limit in a high-numerical-aperture focus

Haohua Tu, Yuan Liu, Dmitry Turchinovich, and Stephen A. Boppart
Opt. Lett. 36(12) 2315-2317 (2011)

Multimodal microscopy with sub-30 fs Yb fiber laser oscillator

Bai Nie, Ilyas Saytashev, Andy Chong, Hui Liu, Sergey N. Arkhipov, Frank W. Wise, and Marcos Dantus
Biomed. Opt. Express 3(7) 1750-1756 (2012)

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 (3)

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