Zobrazeno 1 - 10
of 1 520
pro vyhledávání: '"DODGE, J."'
We analyze the optical pump-probe reflection and transmission coefficients when the photoinduced response depends nonlinearly on the incident pump intensity. Under these conditions, we expect the photoconductivity depth profile to change shape as a f
Externí odkaz:
http://arxiv.org/abs/2410.21496
Autor:
Gray, Isaiah, Deng, Qinwen, Tian, Qi, Chilcote, Michael, Dodge, J. Steven, Brahlek, Matthew, Wu, Liang
$\alpha$-MnTe is an antiferromagnetic semiconductor with above room temperature $T_N$ = 310 K, which is promising for spintronic applications. Recently, it was reported to be an altermagnet, containing bands with momentum-dependent spin splitting; ti
Externí odkaz:
http://arxiv.org/abs/2404.05020
After more than a decade of research on photoinduced superconductivity, the experimental evidence for its existence remains controversial. Recently, we identified a fundamental flaw in the analysis of several influential results on K$_3$C$_{60}$ and
Externí odkaz:
http://arxiv.org/abs/2307.00204
Publikováno v:
Phys. Rev. Lett. 130, 146002 (2023)
We discuss a systematic uncertainty in time-resolved optical conductivity measurements that becomes important at high pump intensities. We show that common optical nonlinearities can distort the photoconductivity depth profile, and by extension disto
Externí odkaz:
http://arxiv.org/abs/2210.01114
Autor:
Mohtashemi, Laleh, Westlund, Paul, Sahota, Derek G., Lea, Graham B., Bushfield, Ian, Mousavi, Payam, Dodge, J. Steven
Publikováno v:
Optics Express 29, 4912 (2021)
We present a maximum-likelihood method for parameter estimation in terahertz time-domain spectroscopy. We derive the likelihood function for a parameterized frequency response function, given a pair of time-domain waveforms with known time-dependent
Externí odkaz:
http://arxiv.org/abs/2012.08509
Autor:
Sahota, Derek G., Liang, Ruixing, Dion, M., Fournier, Patrick, Dąbkowska, Hanna A., Luke, Graeme M., Dodge, J. Steven
Publikováno v:
Phys. Rev. Research 1, 033214 (2019)
We study the pump-probe response of three insulating cuprates and develop a model for its recombination kinetics. The dependence on time, fluence, and both pump and probe photon energies imply many-body recombination on femtosecond timescales, charac
Externí odkaz:
http://arxiv.org/abs/1912.01604
Autor:
Epstein, C. S., Johnston, R., Lee, S., Bernauer, J. C., Corliss, R., Dow, K., Fisher, P., Friscic, I., Hasell, D., Milner, R. G., Moran, P., Steadman, S. G., Wang, Y., Dodge, J., Ihloff, E., Kelsey, J., Vidal, C., Cooke, C. M.
Publikováno v:
Phys. Rev. D 102, 012006 (2020)
Moller scattering is one of the most fundamental processes in QED. Understanding it to high precision is necessary for a variety of modern nuclear and particle physics experiments. In a recent calculation, existing soft-photon radiative corrections w
Externí odkaz:
http://arxiv.org/abs/1903.09265
Publikováno v:
Phys. Rev. B 96, 024501 (2017); Erratum-ibid. 97, 219903 (2018)
We calculate superfluid density for a dirty d-wave superconductor. The effects of impurity scattering are treated within the self-consistent t-matrix approximation, in weak-coupling BCS theory. Working from a realistic tight-binding parameterization
Externí odkaz:
http://arxiv.org/abs/1704.04803
Publikováno v:
Phys. Rev. B 96, 115133 (2017)
We establish a detailed phenomenology of photocarrier transport in the copper oxide plane by studying the transient terahertz photoconductivity of Sr$_2$CuO$_2$Cl$_2$ and YBa$_2$Cu$_3$O$_6$. The peak photoconductivity saturates with fluence, decays o
Externí odkaz:
http://arxiv.org/abs/1610.10091
Autor:
Orenstein, J., Dodge, J. S.
Publikováno v:
Phys. Rev. B 92, 134507 (2015)
Time-resolved terahertz time-domain spectroscopy (THz-TDS) is an ideal tool for probing photoinduced nonequilibrium metallic and superconducting states. Here, we focus on the interpretation of the two-dimensional response function $\Sigma(\omega;t)$
Externí odkaz:
http://arxiv.org/abs/1506.06758