Femtosecond carrier dynamics and saturable absorption in graphene suspensions

Details Femtosecond carrier dynamics and saturable absorption in graphene suspensions Femtosecond carrier dynamics and saturable absorption in graphene suspensions

2009-11-07

arxiv.org/abs/0911.1415v2

Appl. Phys. Lett. 95, 191911 (2009)

Physics

Condensed Matter

Materials Science

3 pages, 2 figures, 2 tables

Scientific paper

Nonlinear optical properties and carrier relaxation dynamics in graphene, suspended in three different solvents, are investigated using femtosecond (80 fs pulses) Z-scan and degenerate pumpprobe spectroscopy at 790 nm. The results demonstrate saturable absorption property of graphene with a nonlinear absorption coefficient, $beta$, of ~2 to 9x10^-8 cm/W. Two distinct time scales associated with the relaxation of photoexcited carriers, a fast one in the range of 130-330 fs (related to carrier-carrier scattering) followed by a slower one in 3.5-4.9 ps range (associated with carrier-phonon scattering) are observed.

Affiliated with

Also associated with

No associations

Rating

Femtosecond carrier dynamics and saturable absorption in graphene suspensions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Femtosecond carrier dynamics and saturable absorption in graphene suspensions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Femtosecond carrier dynamics and saturable absorption in graphene suspensions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-699599