@article {221, title = {Terahertz Response and Colossal Kerr Rotation from the Surface States of the Topological Insulator Bi2Se3}, journal = {Physical Review Letters}, volume = {108}, number = {8}, year = {2012}, note = {ISI Document Delivery No.: 896NY
Times Cited: 164
Cited Reference Count: 35
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George, Deepu/J-9882-2014; Aguilar, Rolando Valdes/A-6637-2012; Liu, Wei/H-5999-2012; Wu, Liang/C-8715-2015
George, Deepu/0000-0003-0021-0705; Aguilar, Rolando Valdes/0000-0002-4321-4792; Wu, Liang/0000-0003-1696-7809; Markelz, Andrea/0000-0003-0443-4319
"Institute for Quantum Matter" DOE [DE-FG02-08ER46544]; Gordon and Betty Moore FoundationGordon and Betty Moore Foundation; NSFNational Science Foundation (NSF) [MRI-R2 0959989, DMR-1006078, DMR-0845464]; IAMDN of Rutgers University; ONROffice of Naval Research [N000140910749]; Division Of Materials ResearchNational Science Foundation (NSF)NSF - Directorate for Mathematical \& Physical Sciences (MPS) [0845464] Funding Source: National Science Foundation
The authors would like to thank H. D. Drew, J. Hancock, Z. Hao, G. S. Jenkins, A. Kuzmenko, A. MacDonald, N. A. Mecholsky, A. J. Pearson, O. Tchernyshyov, W-K. Tse, and Y. Wan for helpful discussions and/or correspondences. Support for the measurements at JHU was provided under the auspices of the "Institute for Quantum Matter" DOE DE-FG02-08ER46544 and the Gordon and Betty Moore Foundation. The work at UB was supported by NSF MRI-R2 0959989 and NSF DMR-1006078. The work at Rutgers was supported by IAMDN of Rutgers University, NSF DMR-0845464 and ONR N000140910749.
166
3
157
Amer physical soc
College pk}, month = {Feb}, pages = {5}, type = {Article}, abstract = {

We report the THz response of thin films of the topological insulator Bi2Se3. At low frequencies, transport is essentially thickness independent showing the dominant contribution of the surface electrons. Despite their extended exposure to ambient conditions, these surfaces exhibit robust properties including narrow, almost thickness-independent Drude peaks, and an unprecedentedly large polarization rotation of linearly polarized light reflected in an applied magnetic field. This Kerr rotation can be as large as 65 degrees and can be explained by a cyclotron resonance effect of the surface states.

}, keywords = {bi2te3, Physics}, isbn = {0031-9007}, doi = {https://doi.org/10.1103/physrevlett.108.087403}, author = {Aguilar, R. V. and Stier, A. V. and Liu, W. and Bilbro, L. S. and George, D. K. and Bansal, N. and Wu, L. and Cerne, J. and Markelz, A. G. and Oh, S. and Armitage, N. P.} } @proceedings {310, title = {Terahertz measurements of the Photoactive Protein Bacteriorhodopsin mutant D96N: M and P states}, volume = {826}, year = {2004}, pages = {pages261{\textendash}267}, address = {Warrendale, PA}, abstract = {

We use terahertz (THz) spectroscopy as a biomaterials characterization tool. Previously we have shown a strong contrast between the THz dielectric response for wild type (WT) and D96N mutant of bacteriorhodopsin. In those studies we observed a large increase in the THz absorbance of WT with excitation to thermally captured photo-intermediates whereas no such increase in absorbance was observed for the mutant D96N. These results suggest that the THz response is sensitive to structural changes and relative flexibility of biomolecules. However the photo-intermediate populations of the WT and D96N samples were not equivalent in those measurements. While the WT samples had relaxed (bR), M and P state intermediates present, the D96N samples had only bR and M states. Here we present terahertz absorbance measurements of D96N as a function of M and P state populations at room temperature. The THz response is constant for intermediate states populations up to 23\% M state and up to 30\% P state. These results verify that there is a fundamental difference in the conformational dynamics as measured by THz dielectric response for a single residue mutation.

}, doi = {10.1557/PROC-826-V2.6}, author = {Chen, C.-Y. and Knab, J. R. and Cerne, J. and Hillebrecht, J. R. and Birge, R. R. and Markelz, A. G.} } @proceedings {314, title = {Terahertz Biosensors based on Xerogel Substrates}, year = {2003}, address = {Santa Barbara, CA}, author = {Chen, J.-Y. and Cox, W. and Bright, F. V. and Cerne, J. and Markelz, A. G.} } @article {258, title = {Temperature of quasi-two-dimensional electron gases under steady-state terahertz drive}, journal = {Applied Physics Letters}, volume = {68}, number = {6}, year = {1996}, note = {ISI Document Delivery No.: TT663
Times Cited: 59
Cited Reference Count: 12
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Sherwin, Mark S/Q-4762-2017
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59

7
Amer inst physics
Woodbury}, month = {Feb}, pages = {829-831}, type = {Article}, abstract = {

We use photoluminescence to study the time-average energy distribution of electrons in the presence of strong steady-state drive at terahertz (THz) frequencies, in a modulation-doped 125 Angstrom AlGaAs/GaAs square well that is held at low lattice temperature TL. We find that the energy distribution can be characterized by an effective electron temperature, T-e(\>T-L), that agrees well with values estimated from the THz-illuminated, dc conductivity. This agreement indicates that under strong THz drive, LO phonon scattering dominates both energy and momentum relaxation; that the carrier distribution maintains a heated, thermal form; and that phonon drift effects are negligible. (C) 1996 American Institute of Physics.

}, keywords = {hot-electrons, Physics}, isbn = {0003-6951}, doi = {10.1063/1.116547}, author = {Asmar, N. G. and Cerne, J. and Markelz, A. G. and Gwinn, E. G. and Sherwin, M. S. and Campman, K. L. and Gossard, A. C.} }