Ultrafast and Nonlinear Optics in Carbon Nanotubes

Single-walled carbon nanotubes (SWNTs) represent one of the most direct realizations of a one-dimensional (1-D) electron system available today. Since their discovery in 1993, their exotic physical, chemical, and mechanical properties have been extensively studied. They are one of the leading candidate technologies to unify electronic and optical functions in nanoscale circuits. At the same time, they provide ideal model 1-D condensed matter systems in which to address fundamental theoretical questions in many-body physics. Here we are using a variety of ultrafast and nonlinear optical spectroscopy methods to study the dynamics and states of 1-D carriers, excitons, and phonons.

See more details in our recent presentations: "Dynamics of One-Dimensional Electrons, Phonons, and Excitons in Carbon Nanotubes" (seminar at TAMU on 3/31/10) and "Electronic Structure and Dynamics in Single-Walled Carbon Nanotubes" (invited talk at Gordon Conf. on 3/3/10).

Publications on Ultrafast Carrier & Phonon Dynamics in SWNTs:

Y.-S. Lim et al., "Resonant Coherent Phonon Generation in Single-Walled Carbon Nanotubes through Near-Band-Edge Excitation," ACS Nano 4, 3222 (2010). (abstract, full text)

G. D. Sanders et al., "Resonant Coherent Phonon Spectroscopy of Single-Walled Carbon Nanotubes," Phys. Rev. B 79, 205434 (2009). (abstract, full text)

J.-H. Kim et al., "Chirality-Selective Excitation of Coherent Phonons in Carbon Nanotubes by Femtosecond Optical Pulses," Phys. Rev. Lett. 102, 037402 (2009). (abstract, full text)

Y.-S. Lim et al., "Coherent Lattice Vibrations in Single-Walled Carbon Nanotubes," Nano Lett. 6, 2696 (2006). (abstract, full text)

G. N. Ostojic et al., "Stability of High-Density One-Dimensional Excitons in Carbon Nanotubes under High Laser Excitation," Phys. Rev. Lett. 94, 097401 (2005). (abstract, full text)

G. N. Ostojic et al., "Interband Recombination Dynamics of Resonantly-Excited Single-Walled Carbon Nanotubes," Phys. Rev. Lett. 92, 117402 (2004). (abstract, full text)

Publications on Physics of High-Density Excitons in SWNTs:

Y. Murakami and J. Kono, "Existence of an Upper Limit on the Density of Excitons in Carbon Nanotubes by Diffusion-Limited Exciton-Exciton Annihilation: Experiment and Theory," Phys. Rev. B 80, 035432 (2009). (abstract, full text)

A. Srivastava and J. Kono, "Diffusion-Limited Exciton-Exciton Annihilation in Single-Walled Carbon Nanotubes: A Time-Dependent Analysis," Phys. Rev. B 79, 205407 (2009). (abstract, full text)

Y. Murakami and J. Kono, "Nonlinear Photoluminescence Excitation Spectroscopy of Carbon Nanotubes: Exploring the Upper Density Limit of One-Dimensional Excitons," Phys. Rev. Lett. 102, 037401 (2009). (abstract, full text)

G. N. Ostojic et al., "Stability of High-Density One-Dimensional Excitons in Carbon Nanotubes under High Laser Excitation," Phys. Rev. Lett. 94, 097401 (2005). (abstract, full text)

Publications on Terahertz Carrier Dynamics in SWNTs:

L. Ren et al., "Anisotropic Terahertz Dynamics of Highly-Aligned Single-Walled Carbon Nanotubes," J. Terahertz Sci. Technol. 3, 26 (2010). (full text)

L. Ren et al., "Carbon Nanotube Terahertz Polarizer," Nano Lett. 9, 2610 (2009). (abstract, full text)