Size dependent photoconductivity in CdSe nanoparticles as measured by time-resolved THz spectroscopy

2002 ◽  
Author(s):  
Matthew C. Beard ◽  
Gordon M. Turner ◽  
Charles A. Schmuttenmaer
Keyword(s):  
Cdse Nanoparticles ◽  
Thz Spectroscopy ◽  
Time Resolved ◽  
Size Dependent

Size-Dependent Photoconductivity in CdSe Nanoparticles as Measured by Time-Resolved Terahertz Spectroscopy

Nano Letters ◽  
2002 ◽  
Vol 2 (9) ◽  
pp. 983-987 ◽  
Author(s):  
Matthew C. Beard ◽  
Gordon M. Turner ◽  
Charles A. Schmuttenmaer
Keyword(s):  
Terahertz Spectroscopy ◽  
Cdse Nanoparticles ◽  
Time Resolved ◽  
Size Dependent

Approach to the Assessment of Size-Dependent Thermal Properties of Disperse Solutions: Time-Resolved Photothermal Lensing of Aqueous Pristine Fullerenes C60and C70

2016 ◽  
Vol 120 (49) ◽  
pp. 28270-28287 ◽  
Author(s):  
Ivan V. Mikheev ◽  
Liliya O. Usoltseva ◽  
Dmitry A. Ivshukov ◽  
Dmitry S. Volkov ◽  
Mikhail V. Korobov ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Time Resolved ◽  
Size Dependent

scholarly journals Monitoring Electron–Phonon Interactions in Lead Halide Perovskites Using Time-Resolved THz Spectroscopy

ACS Nano ◽  
2019 ◽  
Vol 13 (8) ◽  
pp. 8826-8835 ◽  
Author(s):  
Daming Zhao ◽  
Hongwei Hu ◽  
Reinhard Haselsberger ◽  
Rudolph A. Marcus ◽  
Maria-Elisabeth Michel-Beyerle ◽  
...  
Keyword(s):  
Thz Spectroscopy ◽  
Time Resolved ◽  
Halide Perovskites ◽  
Lead Halide

scholarly journals High Power THz Generation from Sub-ps Bunches of Relativistic Electrons

2004 ◽  
Vol 850 ◽  
Author(s):  
S. Benson ◽  
D. R. Douglas ◽  
H. F. Dylla ◽  
J. Gubeli ◽  
K. Jordan ◽  
...  
Keyword(s):  
High Power ◽  
Near Field ◽  
Fourth Power ◽  
Thz Spectroscopy ◽  
Relativistic Electrons ◽  
Time Resolved ◽  
Picosecond Pulses ◽  
Coulomb Term ◽  
Joseph Larmor ◽  
New Generation

ABSTRACTWe describe a > 100 Watt broadband THz source that takes advantage of the relativistic enhancement of the radiation from accelerating electrons according to the formula assigned the name of Sir Joseph Larmor[1, 2]. This is in contrast to the typical 1 milliwatt sources available in a laboratory. Specifically, for relativistic electrons the emission is enhanced by the fourth power of the increase in mass. Thus for 100 MeV electrons, for which the mass increases by a factor of ∼ 200, the enhancement is > 109. The experiments use a new generation of light source called an energy recovery linac (ERL) [3], in which bunches of electrons circulate once, but in which their energy is recovered. In such a machine the electron bunches can be very much shorter than those, say, in storage rings or synchrotrons.The Jefferson Lab facility operates in new limits of emission from relativistic particles involving both multiparticle coherence and near-field emission in which the velocity (Coulomb) term in the classical electrodynamical theory becomes as important as the acceleration term (synchrotron radiation).The sub-picosecond pulses of light offer unique capabilities in 2 specific areas, namely time-resolved dynamics, and imaging. High resolution THz spectroscopy has recently revealed sharp vibrational modes for many materials including malignant tissue, proteins, DNA, pharmaceuticals and explosive materials. Energetically the THz range embraces superconducting bandgaps, and regions of intense interest in the understanding of systems in which correlated motions of electrons are important, such as colossal magneto-resistive and high-Tc materials. The very high power levels of the new source will allow non-linear effects to be observed as well as the creation of novel states of materials, including electric-field driven localization[4]. We will give examples of existing work in these areas and present opportunities afforded by the new source.

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