Physics
Recent Submissions
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Investigating the nature of chiral near-field interactions (article)
(American Physical Society, 2018-04-18)In recent years, there have been reports of enhanced chiroptical interactions in the near-fields of antennas, postulated to be mediated by high spatial gradients in the electromagnetic fields. Here, using gigahertz ... -
In situ chemically specific mapping of agrochemical seed coatings using stimulated Raman scattering microscopy.
(Wiley-VCH_Verlag, 2018-05-17)Providing sufficient, healthy food for the increasing global population is putting a great deal of pressure on the agrochemical industry to maximise crop yields without sustaining environmental damage. The growth and yield ... -
Light in scattering media: active control and the exploration of intensity correlations (dataset)
(University of Exeter, 2018-06-11)Datasets for the Doctoral thesis "Light in scattering media: active control and the exploration of intensity correlations". -
Influence of nanotube length and density on the plasmonic terahertz response of single-walled carbon nanotubes
(IOP Publishing, 2017-10-30)We measure the conductivity spectra of thin films comprising bundled single-walled carbon nanotubes (CNTs) of different average lengths in the frequency range 0.3-1000 THz and temperature interval 10-530 K. The observed ... -
Subwavelength hyperspectral THz studies of articular cartilage
(Nature Publishing Group, 2018-05-02)Terahertz-spectroscopy probes dynamics and spectral response of collective vibrational modes in condensed phase, which can yield insight into composition and topology. However, due to the long wavelengths employed (λ = 300 μm ... -
Design and fabrication of plasmonic cavities for magneto-optical sensing (article)
(AIP Publishing, 2018-05-01)The design and fabrication of a novel plasmonic cavity, intended to allow far-field recovery of signals arising from near field magneto-optical interactions, is presented. Finite element modeling is used to describe the ... -
Parsec-scale jets driven by high-mass young stellar objects. Connecting the au- and the parsec-scale jet in IRAS 13481-6124
(EDP Sciences for European Southern Observatory (ESO), 2018-05-29) -
Differences in the gas and dust distribution in the transitional disk of a sun-like young star, PDS 70
(American Astronomical Society / IOP Publishing, 2018-05-10)The American Astronomical Society. All rights reserved. We present ALMA 0.87 mm continuum, HCO + J = 4-3 emission line, and CO J = 3-2 emission line data of the disk of material around the young, Sun-like star PDS 70. These ... -
Role of spin-orbit coupling in the physical properties of LaX3 (X=In, P, Bi) superconductors
(American Physical Society, 2018-05-14)We report a comprehensive and complementary study on structural, elastic, mechanical, electronic, phonon, and electron-phonon interaction properties of LaX3 (X = In, Pb, and Bi) using first-principles density functional ... -
Visible light emitting waveguide on Si chip
(Society of Photo-optical Instrumentation Engineers (SPIE), 2018-05-22)Photonic lab-on-a-chip portable platforms have proved to be very sensitive, rapid in analysis and easy-to-use. However, they still rely on a bulk light source to operate, thus hindering the actual portability and potential ... -
Shaken and stirred: the effects of turbulence and rotation on disc and outflow formation during the collapse of magnetized molecular cloud cores (article)
(Oxford University Press (OUP), 2018-03-30)We present the results of 18 magnetohydrodynamical calculations of the collapse of a molecular cloud core to form a protostar. Some calculations include radiative transfer in the flux-limited diffusion approximation, while ... -
Wafer scale FeCl3 intercalated graphene electrodes for photovoltaic applications
(Society of Photo-optical Instrumentation Engineers (SPIE), 2018-05-21)The alteration of graphene’s electrical properties through chemical functionalization is a necessary process in order for graphene to fulfill its potential as a transparent conducting electrode. In this work, we present a ... -
Testing hydrodynamics schemes in galaxy disc simulations (dataset)
(University of Exeter, 2018-05-22)This is the dataset used for the Few et al. (2016) article "Testing hydrodynamics schemes in galaxy disc simulations" published in Monthly Notices of the Royal Astronomical Society. -
The spin evolution of fast-rotating, magnetized super-Chandrasekhar white dwarfs in the aftermath of white dwarf mergers
(American Astronomical Society / IOP Publishing, 2018-04-20)The evolution of the remnant of the merger of two white dwarfs is still an open problem. Furthermore, few studies have addressed the case in which the remnant is a magnetic white dwarf with a mass larger than the Chandrasekhar ... -
Young star clusters in nearby molecular clouds
(Oxford University Press, 2018-02-22)The SFiNCs (Star Formation in Nearby Clouds) project is an X-ray/infrared study of the young stellar populations in 22 star-forming regions with distances ≲1 kpc designed to extend our earlier MYStIX (Massive Young ... -
Intracluster age gradients in numerous young stellar clusters
(Oxford University Press, 2018-02-05)The pace and pattern of star formation leading to rich young stellar clusters is quite uncertain. In this context, we analyse the spatial distribution of ages within 19 young (median t ≲ 3 Myr on the Siess et al. time-scale), ... -
Designing scattering-free isotropic index profiles using phase-amplitude equations
(American Physical Society, 2018-05-15)The Helmholtz equation can be written as coupled equations for the amplitude and phase. By considering spatial phase distributions corresponding to reflectionless wave propagation in the plane and solving for the amplitude ... -
The Complete transmission spectrum of WASP-39b with a precise water constraint
(American Astronomical Society, 2017-12-21)WASP-39b is a hot Saturn-mass exoplanet with a predicted clear atmosphere based on observations in the optical and infrared. Here we complete the transmission spectrum of the atmosphere with observations in the near-infrared ... -
Helium in the eroding atmosphere of an exoplanet
(Nature Publishing Group, 2018-05-02)Helium is the second-most abundant element in the Universe after hydrogen and is one of the main constituents of gas-giant planets in our Solar System. Early theoretical models predicted helium to be among the most readily ... -
The JCMT Transient Survey: Identifying Submillimetre Continuum Variability over Several Year Timescales Using Archival JCMT Gould Belt Survey Observations
(American Astronomical Society / IOP Publishing, 2017-11-07)Investigating variability at the earliest stages of low-mass star formation is fundamental in understanding how a protostar assembles mass. While many simulations of protostellar disks predict non-steady accretion onto ...