Zobrazeno 1 - 10
of 169
pro vyhledávání: '"Bristow Alan D."'
Autor:
Tirumala, Ravi Teja A., Gyawali, Sunil, Wheeler, Aaron, Ramakrishnan, Sundaram Bhardwaj, Sooriyagoda, Rishmali, Mohammadparast, Farshid, Tan, Susheng, Kalkan, A. Kaan, Bristow, Alan D., Andiappan, Marimuthu
Nanostructured metal oxides, such as Cu2O, CeO2, {\alpha}-Fe2O3, and TiO2 can efficiently mediate photocatalysis for solar-to-chemical energy conversion and pollution remediation. In this contribution, we report a novel approach, dielectric Mie reson
Externí odkaz:
http://arxiv.org/abs/2109.13332
Autor:
Piyathilaka, Herath P., Sooriyagoda, Rishmali, Esmaielpour, Hamidreza, Whiteside, Vincent R., Mishima, Tetsuya D., Santos, Michael B., Sellers, Ian R., Bristow, Alan D.
A type-II InAs/AlAs$_{0.16}$Sb$_{0.84}$ multiple-quantum well sample is investigated for the photoexcited carrier dynamics as a function of excitation photon energy and lattice temperature. Time-resolved measurements are performed using a near-infrar
Externí odkaz:
http://arxiv.org/abs/2103.03839
Autor:
Aziziha, Mina, Akbarshahi, Saeed, Pittala, Suresh, Ghosh, Sayandeep, Sooriyagoda, Rishmali, Romero, Aldo H., Thota, Subhash, Bristow, Alan D., Seehra, Mohindar S., Johnson, Matthew B.
Delafossites are promising candidates for photocatalysis applications because of their chemical stability and absorption in the solar region of the electromagnetic spectrum. For example, CuAlO2 has good chemical stability but has a large indirect ban
Externí odkaz:
http://arxiv.org/abs/2012.00147
Autor:
Sooriyagoda, Rishmali, Piyathilaka, Herath P., Zawilski, Kevin T., Schunemann, Peter G., Bristow, Alan D.
Terahertz time-domain spectroscopy is employed to investigate temperature-dependent properties of bulk chalcopyrite crystals (CdGeP$_2$, ZnGeP$_2$ and CdSiP$_2$). The complex spectra provide the refraction and absorption as a function of temperature,
Externí odkaz:
http://arxiv.org/abs/2009.04605
Autor:
Munoz, Maria F., Medina, Adam, Autry, Travis M., Moody, Galan, Siemens, Mark E., Bristow, Alan D., Cundiff, Steven T., Li, Hebin
Publikováno v:
Opt. Lett. 45, 5852-5855 (2020)
As optical two-dimensional coherent spectroscopy (2DCS) is extended to a broader range of applications, it is critical to improve the detection sensitivity of optical 2DCS. We developed a fast phase-cycling scheme in a non-collinear optical 2DCS impl
Externí odkaz:
http://arxiv.org/abs/2008.08181
Publikováno v:
EPJ Web of Conferences, Vol 41, p 02010 (2013)
Optical single- and double-quantum three-dimensional Fourier-transform spectra are obtained for atomic vapors. We show that three-dimensional spectra can be used to identify the Hamiltonian of complex systems and to reveal the nature of many-body int
Externí odkaz:
https://doaj.org/article/b7f924e595b146f58d2112112a986bdb
Publikováno v:
Phys. Rev. B 94, 075207 (2016)
Polarization-dependent two-dimensional Fourier-transform spectroscopy (2DFTS) is performed on excitons in strained bulk GaAs layers probing the coherent response for differing amounts of strain. Biaxial tensile strain lifts the degeneracy of heavy-ho
Externí odkaz:
http://arxiv.org/abs/1605.06001
Autor:
Bas, Derek A., Muniz, Rodrigo A., Babakiray, Sercan, Lederman, David, Sipe, J. E., Bristow, Alan D.
Publikováno v:
Opt. Express 24, 23583 (2016)
Optical injection and detection of charge currents can complement conventional transport and photoemission measurements without the necessity of invasive contact that may disturb the system being examined. This is a particular concern for the surface
Externí odkaz:
http://arxiv.org/abs/1602.01074
Preparation, characterization, and electrical properties of epitaxial NbO2 thin film lateral devices
Publikováno v:
J. Phys. D: Appl. Phys. 48, 335308 (2015)
Epitaxial NbO2 (110) films, 20 nm thick, were grown by pulsed laser deposition on Al2O3 (0001) substrates. The Ar/O2 total pressure during growth was varied to demonstrate the gradual transformation between NbO2 and Nb2O5 phases, which was verified u
Externí odkaz:
http://arxiv.org/abs/1506.06640
Publikováno v:
Phys. Rev. B 91, 201304(R) (2015)
Rephasing and non-rephasing two-dimensional coherent spectra map the anti-crossing associated with normal-mode splitting in a semiconductor microcavity. For a 12-meV detuning range near zero detuning, it is observed that there are two diagonal featur
Externí odkaz:
http://arxiv.org/abs/1503.01153