174 citations · 647 across the 13 of their papers we have counts for
13 papers
Ultrafast Generation of Fundamental and Multiple-order Phonon Excitations in Highly-Enriched (6,5) Single-Wall Carbon Nanotubes
Y. -S. Lim, A. R. T. Nugraha, S. -J. Cho +14
Using a macroscopic ensemble of highly-enriched (6,5) single-wall carbon nanotubes, combined with high signal-to-noise ratio, time-dependent differential transmission spectroscopy,…
Plasmonic Nature of the Terahertz Conductivity Peak in Single-Wall Carbon Nanotubes
Q. Zhang, E. H. Haroz, Z. Jin +5
Plasmon resonance is expected to occur in metallic and doped semiconducting carbon nanotubes in the terahertz frequency range, but its convincing identification has so far been elu…
Fundamental Optical Processes in Armchair Carbon Nanotubes
E. H. Haroz, J. G. Duque, X. Tu +5
We have used post-synthesis separation methods based on density gradient ultracentrifugation and DNA-based ion-exchange chromatography to produce aqueous suspensions strongly enric…
Circular-Polarization Dependent Cyclotron Resonance in Large-Area Graphene in Ultrahigh Magnetic Fields
L. G. Booshehri, C. H. Mielke, D. G. Rickel +11
Using ultrahigh magnetic fields up to 170 T and polarized midinfrared radiation with tunable wavelengths from 9.22 to 10.67 um, we studied cyclotron resonance in large-area graphen…
The Unique Origin of Colors of Armchair Carbon Nanotubes
E. H. Haroz, B. Y. Lu, P. Nikolaev +3
The colors of suspended metallic colloidal particles are determined by their size-dependent plasma resonance, while those of semiconducting colloidal particles are determined by th…
Dephasing of G-Band Phonons in Single-Wall Carbon Nanotubes Probed via Impulsive Stimulated Raman Scattering
J. -H. Kim, K. -J. Yee, Y. -S. Lim +3
We have studied the coherent dynamics of G-band phonons in single-walled carbon nanotubes through impulsive stimulated Stokes and anti-Stokes Raman scattering. The probe energy dep…
Resonant Raman Spectroscopy of Armchair Carbon Nanotubes: Absence of "Metallic" Signature
E. H. Haroz, J. G. Duque, W. D. Rice +3
The appearance of a broad peak at 1550 cm (G peak) in carbon nanotube resonant Raman scattering spectra has been conventionally attributed to the presence of met…
Polarization dependence of coherent phonon generation and detection in highly-aligned single-walled carbon nanotubes
L. G. Booshehri, C. L. Pint, G. D. Sanders +9
We have investigated the polarization dependence of the generation and detection of radial breathing mode (RBM) coherent phonons (CP) in highly-aligned single-walled carbon nanotub…
Resonant Coherent Phonon Generation in Single-Walled Carbon Nanotubes through Near-Band-Edge Excitation
Y. -S. Lim, J. -G. Ahn, J. -H. Kim +6
We have observed large-amplitude coherent phonon oscillations of radial breathing modes (RBMs) in single-walled carbon nanotubes excited through the lowest-energy (E11) interband t…
Enrichment of Armchair Carbon Nanotubes via Density Gradient Ultracentrifugation: Raman Spectroscopy Evidence
E. H. Haroz, W. D. Rice, B. Y. Lu +5
We have used resonant Raman scattering spectroscopy to fully analyze the relative abundances of different (n,m) species in single-walled carbon nanotube samples that are metallical…
Resonant Coherent Phonon Spectroscopy of Single-Walled Carbon Nanotubes
G. D. Sanders, C. J. Stanton, J. -H. Kim +6
Using femtosecond pump-probe spectroscopy with pulse shaping techniques, one can generate and detect coherent phonons in chirality-specific semiconducting single-walled carbon nano…
Chirality-Selective Excitation of Coherent Phonons in Carbon Nanotubes
J. -H. Kim, K. -J. Han, N. -J. Kim +7
Using pre-designed trains of femtosecond optical pulses, we have selectively excited coherent phonons of the radial breathing mode of specific-chirality single-walled carbon nanotu…
Coherent Lattice Vibrations in Carbon Nanotubes
Y. S. Lim, K. J. Yee, J. H. Kim +6
We have generated and detected the radial-breathing mode of coherent lattice vibrations in single-walled carbon nanotubes using ultrashort laser pulses. Because the band gap is a f…