Title :
Ultrafast optical properties of PbSe Nano-rods: One dimensional excitons
Author :
Kinigstein, E.D. ; Huang, S.-W. ; Sfeir, Matthew Y. ; Koh, W.-K. ; Murray, C.B. ; Heinz, T.F. ; Wong, C.-W.
Author_Institution :
Opt. Nanostruct. Lab., Columbia Univ., New York, NY, USA
Abstract :
Using Supercontinuum Transient Absorption Spectroscopy we observe new ultrafast exciton dynamics in PbSe Nanorods. We report distinct types of biexcitonic interactions, and propose a model to quantitatively describe the bleach using the predicted electronic structure.
Keywords :
IV-VI semiconductors; biexcitons; electronic structure; high-speed optical techniques; lead compounds; nanorods; optical saturable absorption; PbSe; biexcitonic interaction; bleaching; electronic structure; lead selenide nanorods; one-dimensional excitons; supercontinuum transient absorption spectroscopy; ultrafast optical properties; Excitons; Nonlinear optics; Optical pulses; Optical pumping; Stationary state; Transient analysis; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
