Publications on Hard Condensed Matter
Quantized Photocurrents in the Chiral Multifold Fermion System RhSi, D. Rees, K. Manna, B. Lu, T. Morimoto, H. Borrmann, C. Felser, J.E. Moore, D. H. Torchinsky†, J. Orenstein†, arXiv:1902.03230. (submitted).
Fast Reflective Optic-Based Rotational Anisotropy Nonlinear Harmonic Generation Spectrometer, B. Lu*, J. D. Tran* & D. H. Torchinsky†, arXiv:1811.01862. (In review)
Fourier Domain Rotational Anisotropy-Second Harmonic Generation, B. Lu & D. H. Torchinsky†, Optics Express, 26, 33192 (2018).
Resonance-enhanced optical nonlinearity in the Weyl semimetal TaAs, S. Patankar, L. Wu, B. Lu, M. Rai, J. D. Tran, T. Morimoto, D. Parker, A. Grushin, N. L. Nair, J. G. Analytis, J. E. Moore, J. Orenstein, & D. H. Torchinsky†, Phys. Rev. B 98, 165113 (2018).
Second Harmonic Generation Spectroscopy of Hidden Phases, L. Zhao, D. H. Torchinsky, J. Harter, A. de la Torre, & D. Hsieh. In: Guenther, R. and Steel, D. (eds.), Encyclopedia of Modern Optics 2nd edition, vol. 2, pp. 207–226. Oxford: Elsevier (2018).
Rotational Anisotropy Nonlinear Harmonic Generation, D. H. Torchinsky & D. Hsieh. In Challa S.S.R. Kumar (Ed.), Magnetic Characterization Techniques for Nanomaterials (pp. 1-49). Berlin, Heidelberg: Springer Berlin Heidelberg (2017).
Evidence of an odd-parity hidden order in a strongly spin-orbit coupled correlated iridate,
L. Zhao, D. H. Torchinsky, H. Chu, V. Ivanov, R. Lifshitz, R. Flint, T. Qi, G. Cao, & D. Hsieh. Nature Phys. 12, 32–36 (2016).
Fast Reflective Optic-Based Rotational Anisotropy Nonlinear Harmonic Generation Spectrometer, B. Lu*, J. D. Tran* & D. H. Torchinsky†, arXiv:1811.01862. (In review)
Fourier Domain Rotational Anisotropy-Second Harmonic Generation, B. Lu & D. H. Torchinsky†, Optics Express, 26, 33192 (2018).
Resonance-enhanced optical nonlinearity in the Weyl semimetal TaAs, S. Patankar, L. Wu, B. Lu, M. Rai, J. D. Tran, T. Morimoto, D. Parker, A. Grushin, N. L. Nair, J. G. Analytis, J. E. Moore, J. Orenstein, & D. H. Torchinsky†, Phys. Rev. B 98, 165113 (2018).
Second Harmonic Generation Spectroscopy of Hidden Phases, L. Zhao, D. H. Torchinsky, J. Harter, A. de la Torre, & D. Hsieh. In: Guenther, R. and Steel, D. (eds.), Encyclopedia of Modern Optics 2nd edition, vol. 2, pp. 207–226. Oxford: Elsevier (2018).
Rotational Anisotropy Nonlinear Harmonic Generation, D. H. Torchinsky & D. Hsieh. In Challa S.S.R. Kumar (Ed.), Magnetic Characterization Techniques for Nanomaterials (pp. 1-49). Berlin, Heidelberg: Springer Berlin Heidelberg (2017).
Evidence of an odd-parity hidden order in a strongly spin-orbit coupled correlated iridate,
L. Zhao, D. H. Torchinsky, H. Chu, V. Ivanov, R. Lifshitz, R. Flint, T. Qi, G. Cao, & D. Hsieh. Nature Phys. 12, 32–36 (2016).
Structural distortion-induced magnetoelastic locking in Sr2IrO4 revealed through nonlinear optical harmonic generation, D. H. Torchinsky, H. Chu, L. Zhao, N. B. Perkins, Y. Sizyuk, T. F. Qi, G. Cao, & D. Hsieh., Phys. Rev. Lett., 114, 096404 (2015).
A Low Temperature Nonlinear Optical Rotational Anisotropy Spectrometer for the Determination of Crystallographic and Electronic Symmetries, D. H. Torchinsky, H. Chu, T. F. Qi, G. Cao, & D. Hsieh, Rev. Sci. Instrum., 85, 083102 (2014).
Nonlinear high-temperature superconducting terahertz metamaterials, N. K. Grady, B. G. Perkins Jr, H. Y. Hwang, N. C. Brandt, D. H. Torchinsky, R. Singh, L. Yan, D. Trugman, S. A. Trugman, Q. X. Jia, A. J. Taylor, K. A. Nelson, & H. T. Chen, New J. Phys., 15, 105016 (2013).
Fluctuating charge density waves in a cuprate superconductor, D. H. Torchinsky*, F. Mahmood*, A. Bollinger, I. Božović, & N. Gedik, Nature Mater., 12, 387 (2013).
Theoretical and experimental study of second harmonic generation from the surface of the topological insulator Bi2Se3, J. W. McIver, D. Hsieh, S. G. Drapcho, D. H. Torchinsky, D. R. Gardner, Y. S. Lee, & N. Gedik, Phys. Rev. B, 86, 035327 (2012).
Observation of a Slater-type metal-to-insulator transition in Sr2IrO4 from time-resolved photo-carrier dynamics, D. Hsieh, F. Mahmood, D. H. Torchinsky, G. Cao, & N. Gedik, Phys. Rev. B , 86, 035128 (2012).
Nonequilibrium quasiparticle relaxation in single crystals of hole and electron doped BaFe2As2, D. H. Torchinsky, J. W. McIver, D. Hsieh, G. F. Chen, J. L. Luo, N. L. Wang, & N. Gedik, Phys. Rev. B, 84, 104518 (2011).
Nonlinear optical probe of tunable surface electrons on a topological insulator, D. Hsieh, J. W. McIver, D. H. Torchinsky, D. R. Gardner, Y. S. Lee, & N. Gedik, Phys. Rev. Lett., 106, 057401 (2011).
Band-dependent quasiparticle dynamics in the hole-doped Ba-122 iron pnictides, D. H. Torchinsky, J. W. McIver, D. Hsieh, G. F. Chen, J. L. Luo, N. L. Wang, & N. Gedik, J. Phys. Chem. Sol., 72, 519 (2010).
Band-dependent quasiparticle dynamics in single crystals of the Ba0.6K0.4Fe2As2 superconductor revealed by pump-probe spectroscopy, D. H. Torchinsky, G. F. Chen, J. L. Luo, N. L. Wang, & N. Gedik, Phys. Rev. Lett., 105, 027005 (2010).
Second-order elastic constants of pentaerythritol tetranitrate and cyclotrimethylene trinitramine using impulsive stimulated thermal scattering, B. Sun, J. M. Winey, N. Hemmi, Z. A. Dreger, K. A. Zimmerman, Y. M. Gupta, D. H. Torchinsky, & K. A. Nelson, J. Appl. Phys., 104, 073517 (2008).
Transient grating measurement of surface acoustic waves in thin metal films with extreme ultraviolet radiation, R. I. Tobey, M. E. Siemens, M. M. Murnane, H. C. Kapteyn, D. H. Torchinsky, & K. A. Nelson, Appl. Phys. Lett., 89, 091108 (2006).
A Low Temperature Nonlinear Optical Rotational Anisotropy Spectrometer for the Determination of Crystallographic and Electronic Symmetries, D. H. Torchinsky, H. Chu, T. F. Qi, G. Cao, & D. Hsieh, Rev. Sci. Instrum., 85, 083102 (2014).
Nonlinear high-temperature superconducting terahertz metamaterials, N. K. Grady, B. G. Perkins Jr, H. Y. Hwang, N. C. Brandt, D. H. Torchinsky, R. Singh, L. Yan, D. Trugman, S. A. Trugman, Q. X. Jia, A. J. Taylor, K. A. Nelson, & H. T. Chen, New J. Phys., 15, 105016 (2013).
Fluctuating charge density waves in a cuprate superconductor, D. H. Torchinsky*, F. Mahmood*, A. Bollinger, I. Božović, & N. Gedik, Nature Mater., 12, 387 (2013).
Theoretical and experimental study of second harmonic generation from the surface of the topological insulator Bi2Se3, J. W. McIver, D. Hsieh, S. G. Drapcho, D. H. Torchinsky, D. R. Gardner, Y. S. Lee, & N. Gedik, Phys. Rev. B, 86, 035327 (2012).
Observation of a Slater-type metal-to-insulator transition in Sr2IrO4 from time-resolved photo-carrier dynamics, D. Hsieh, F. Mahmood, D. H. Torchinsky, G. Cao, & N. Gedik, Phys. Rev. B , 86, 035128 (2012).
Nonequilibrium quasiparticle relaxation in single crystals of hole and electron doped BaFe2As2, D. H. Torchinsky, J. W. McIver, D. Hsieh, G. F. Chen, J. L. Luo, N. L. Wang, & N. Gedik, Phys. Rev. B, 84, 104518 (2011).
Nonlinear optical probe of tunable surface electrons on a topological insulator, D. Hsieh, J. W. McIver, D. H. Torchinsky, D. R. Gardner, Y. S. Lee, & N. Gedik, Phys. Rev. Lett., 106, 057401 (2011).
Band-dependent quasiparticle dynamics in the hole-doped Ba-122 iron pnictides, D. H. Torchinsky, J. W. McIver, D. Hsieh, G. F. Chen, J. L. Luo, N. L. Wang, & N. Gedik, J. Phys. Chem. Sol., 72, 519 (2010).
Band-dependent quasiparticle dynamics in single crystals of the Ba0.6K0.4Fe2As2 superconductor revealed by pump-probe spectroscopy, D. H. Torchinsky, G. F. Chen, J. L. Luo, N. L. Wang, & N. Gedik, Phys. Rev. Lett., 105, 027005 (2010).
Second-order elastic constants of pentaerythritol tetranitrate and cyclotrimethylene trinitramine using impulsive stimulated thermal scattering, B. Sun, J. M. Winey, N. Hemmi, Z. A. Dreger, K. A. Zimmerman, Y. M. Gupta, D. H. Torchinsky, & K. A. Nelson, J. Appl. Phys., 104, 073517 (2008).
Transient grating measurement of surface acoustic waves in thin metal films with extreme ultraviolet radiation, R. I. Tobey, M. E. Siemens, M. M. Murnane, H. C. Kapteyn, D. H. Torchinsky, & K. A. Nelson, Appl. Phys. Lett., 89, 091108 (2006).
Publications on Soft Condensed Matter
Toward Broadband Mechanical Spectroscopy, T. Hecksher*, D. H. Torchinsky*, C. Klieber*, J. A. Johnson*, J. C. Dyre, & K. A. Nelson, Proc. Natl. Acad. Sci. U.S.A., 114, 8710-8715 (2017)
Mechanical spectra of glass-forming liquids. II. Gigahertz-frequency longitudinal and shear acoustic dynamics in glycerol and DC704 studied by time-domain Brillouin scattering, C. Klieber, T. Hecksher, T. Pezeril, D. H. Torchinsky, S. Andrieu, J. C. Dyre, & K. A. Nelson, J. Chem. Phys., 138, 12A544 (2013).
α-scale decoupling of the mechanical relaxation and diverging shear wave propagation lengthscale in triphenylphosphite, D. H. Torchinsky†, J. A. Johnson, & K. A. Nelson, J. Chem. Phys., 136, 174509 (2012).
High frequency longitudinal and shear acoustic waves in glass-forming liquids, C. Klieber, D. H. Torchinsky, T. Pezeril, K. Manke, S. Andrieu, & K. A. Nelson, in 15th International Conference on Photoacoustic and Photothermal Phenomena (ICPPP15) 214, C. Glorieux & J. Thoen, eds., (IOP Publishing Ltd., 2010).
A direct test of the correlation between Poisson ratio and fragility of seven glass formers and their relationship to elastic models of glass forming liquids, D. H. Torchinsky†, J. A. Johnson, & K. A. Nelson, J. Chem. Phys., 130, 064502 (2009).
Experimental investigation of nanofluid shear and longitudinal viscosities, A. J. Schmidt, M. Chiesa, D. H. Torchinsky, J. A. Johnson, A. Boustani, G. H. McKinley, K. A. Nelson, & G. Chen, Appl. Phys. Lett., 92, 244107 (2008).
Thermal conductivity of nanoparticle suspensions in insulating media measured with a transient optical grating and a hotwire, A. J. Schmidt, M. Chiesa, D. H. Torchinsky, J. A. Johnson, K. A. Nelson, & G. Chen, J. Appl. Phys., 103, 083529 (2008).
Photoacoustic measurements to determine acoustic velocities in shocked condensed materials: Application to liquid benzene, N. Hemmi, D. H. Torchinsky, K. A. Zimmerman, J. M. Winey, K. A. Nelson, & Y. M. Gupta, Appl. Phys. Lett., 92 101926 (2008).
Pulsed laser characterization of multicomponent polymer acoustic and mechanical properties in the sub-GHz regime, G. Saini, T. Pezeril, D. H. Torchinsky, J. Yoon, S. E. Kooi, E. L. Thomas, & K. A. Nelson, J. Mat. Res., 22, 719-723 (2007).
Mechanical spectra of glass-forming liquids. II. Gigahertz-frequency longitudinal and shear acoustic dynamics in glycerol and DC704 studied by time-domain Brillouin scattering, C. Klieber, T. Hecksher, T. Pezeril, D. H. Torchinsky, S. Andrieu, J. C. Dyre, & K. A. Nelson, J. Chem. Phys., 138, 12A544 (2013).
α-scale decoupling of the mechanical relaxation and diverging shear wave propagation lengthscale in triphenylphosphite, D. H. Torchinsky†, J. A. Johnson, & K. A. Nelson, J. Chem. Phys., 136, 174509 (2012).
High frequency longitudinal and shear acoustic waves in glass-forming liquids, C. Klieber, D. H. Torchinsky, T. Pezeril, K. Manke, S. Andrieu, & K. A. Nelson, in 15th International Conference on Photoacoustic and Photothermal Phenomena (ICPPP15) 214, C. Glorieux & J. Thoen, eds., (IOP Publishing Ltd., 2010).
A direct test of the correlation between Poisson ratio and fragility of seven glass formers and their relationship to elastic models of glass forming liquids, D. H. Torchinsky†, J. A. Johnson, & K. A. Nelson, J. Chem. Phys., 130, 064502 (2009).
Experimental investigation of nanofluid shear and longitudinal viscosities, A. J. Schmidt, M. Chiesa, D. H. Torchinsky, J. A. Johnson, A. Boustani, G. H. McKinley, K. A. Nelson, & G. Chen, Appl. Phys. Lett., 92, 244107 (2008).
Thermal conductivity of nanoparticle suspensions in insulating media measured with a transient optical grating and a hotwire, A. J. Schmidt, M. Chiesa, D. H. Torchinsky, J. A. Johnson, K. A. Nelson, & G. Chen, J. Appl. Phys., 103, 083529 (2008).
Photoacoustic measurements to determine acoustic velocities in shocked condensed materials: Application to liquid benzene, N. Hemmi, D. H. Torchinsky, K. A. Zimmerman, J. M. Winey, K. A. Nelson, & Y. M. Gupta, Appl. Phys. Lett., 92 101926 (2008).
Pulsed laser characterization of multicomponent polymer acoustic and mechanical properties in the sub-GHz regime, G. Saini, T. Pezeril, D. H. Torchinsky, J. Yoon, S. E. Kooi, E. L. Thomas, & K. A. Nelson, J. Mat. Res., 22, 719-723 (2007).