Terahertz (THz) waves are electromagnetic waves whose
frequencies lie between the microwave and infrared
regions. Naturally occurring THz radiation fills up the
space of everyday life providing warmth, yet this part of
the electromagnetic spectrum remains the least explored
region. Our research focuses on terahertz
time-domain spectroscopy and ultrafast carrier
dynamics in semiconductor nanostructures and carbon
nanomaterials.
Quantum
Dynamics of Excitions in QWs Driven by Strong THz
Pulses
Terahertz
Excitations of Semiconductor Microcavities
Terahertz
Imaging and Spectroscopy of Graphene
Terahertz
Ellipsometry of Carbon Nanotubes
Latest Publications:
M. J. Paul, J. L. Tomaino,
J. W. Kevek, P. L. McEuen, E. D.
Minot, and Yun-Shik Lee, “Terahertz
Imaging and Time-Domain Spectroscopy
of Single-Layer Graphene Embedded in
Dielectric Media,” Appl. Phys. Lett.
101, 091109 (2012) http://dx.doi.org/10.1063/1.4749280
J. L. Tomaino, A. D.
Jameson, Yun-Shik Lee, G.
Khitrova, H. M. Gibbs, A.
C. Klettke, M. Kira, and
S.W. Koch,
“Terahertz-Driven
Three-Level L System in
Quantum-Well Microcavity,”
Phys. Rev. Lett. 108,
267402 (2012) http://link.aps.org/doi/10.1103/PhysRevLett.108.267402 A.
D. Jameson, J.
L. Tomaino, J.
W. Kevek, M.
J. Paul, A. M.
van der Zande,
R. A. Barton,
P. L. McEuen,
E. D. Minot,
and Yun-Shik
Lee,
“High-contrast
imaging of
graphene via
time-domain
terahertz
spectroscopy,”
J Infrared
Milli Terahz
Waves 33, 839
(2012) http://www.springerlink.com/content/d5jr88630267hg48/
A. D. Jameson,
J. L. Tomaino,
J. W. Kevek,
M. J. Paul, M.
Hemphill-Johnston,
M.
Koretsky, E.
D. Minot, and
Yun-Shik Lee,
“Terahertz
spectroscopy
of Ni-Ti alloy
thin films,”
Appl. Phys.
Lett. 98,
221111 (2011) http://dx.doi.org/10.1063/1.3596456
J. L. Tomaino, A. D. Jameson, J. W. Kevek, M. J. Paul, A. M.
van der Zande, R. A. Barton, P. L. McEuen, E. D. Minot, and
Yun-Shik Lee, “Terahertz Imaging and Time-Domain
Spectroscopy of Large-Area Single-Layer Graphene,” Opt.
Express 19, 141-146 (2011) http://dx.doi.org/10.1364/OE.19.000141