Search Results - "Quiney, H. M"

Diffractive imaging of highly focused X-ray fields by Nugent, K. A, Quiney, H. M, Peele, A. G, Cai, Z, Paterson, D

“…The rapid development of new sources of coherent X-rays, such as third-generation synchrotrons, high-harmonic-generation lasers and X-ray free-electron lasers,…”
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Coherent Vibronic Coupling in Light-Harvesting Complexes from Photosynthetic Marine Algae by Richards, G. H, Wilk, K. E, Curmi, P. M. G, Quiney, H. M, Davis, J. A

“…Observations of long-lived coherences in photosynthetic light-harvesting complexes utilize short pulses with broad spectral bandwidths to coherently excite…”
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Precise and Accurate Measurements of Strong-Field Photoionization and a Transferable Laser Intensity Calibration Standard by Wallace, W C, Ghafur, O, Khurmi, C, Sainadh U, Satya, Calvert, J E, Laban, D E, Pullen, M G, Bartschat, K, Grum-Grzhimailo, A N, Wells, D, Quiney, H M, Tong, X M, Litvinyuk, I V, Sang, R T, Kielpinski, D

“…Ionization of atoms and molecules in strong laser fields is a fundamental process in many fields of research, especially in the emerging field of attosecond…”
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Diffractive imaging using partially coherent x rays by Whitehead, L W, Williams, G J, Quiney, H M, Vine, D J, Dilanian, R A, Flewett, S, Nugent, K A, Peele, A G, Balaur, E, McNulty, I

“…The measured spatial coherence characteristics of the illumination used in a diffractive imaging experiment are incorporated in an algorithm that reconstructs…”
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Three-dimensional electronic spectroscopy of excitons in asymmetric double quantum wells by Hall, C R, Tollerud, J O, Quiney, H M, Davis, J A

“…We utilize a three-dimensional (3D) visible spectroscopy to reveal and explore coherent coupling between excitons localized to GaAs quantum wells separated by…”
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Iterative image reconstruction algorithms using wave-front intensity and phase variation by Quiney, H M, Nugent, K A, Peele, A G

“…Iterative algorithms that reconstruct images from far-field x-ray diffraction data are plagued with convergence difficulties. An iterative image reconstruction…”
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Carrier-envelope phase effects in above-threshold ionization of atomic hydrogen by Wallace, W C, Pullen, M G, Laban, D E, Ghafur, O, Xu, Han, Palmer, A J, Hanne, G F, Bartschat, K, Grum-Grzhimailo, A N, Quiney, H M, Litvinyuk, I V, Sang, R T, Kielpinski, D

“…Recent experiments in ultrafast physics have established the importance of above-threshold ionization (ATI) experiments in measuring and controlling the…”
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Comparison of Hartree-Fock and Hartree-Fock-Slater approximations for calculation of radiation damage dynamics of light and heavy atoms in the field of an x-ray free-electron laser by Kozlov, A, Quiney, H M

“…Simulations of radiation damage in single-molecule imaging using an x-ray free-electron laser use atomic rates calculated in the lowest order. We investigate…”
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Dark-field signal extraction in propagation-based phase-contrast imaging by Gureyev, T E, Paganin, D M, Arhatari, B, Taba, S T, Lewis, S, Brennan, P C, Quiney, H M

“…A method for extracting the dark-field signal in propagation-based phase-contrast imaging is proposed. In the case of objects consisting predominantly of a…”
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Relative roles of multiple scattering and Fresnel diffraction in the imaging of small molecules using electrons by Gureyev, T.E., Quiney, H.M., Kozlov, A., Allen, L.J.

“…•Multiple scattering has only a moderate effect in electron imaging of small molecules.•In-molecule Fresnel diffraction tends to have a significant…”
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Imaging Breast Microcalcifications Using Dark-Field Signal in Propagation-Based Phase-Contrast Tomography by Aminzadeh, A., Arhatari, B. D., Maksimenko, A., Hall, C. J., Hausermann, D., Peele, A. G., Fox, J., Kumar, B., Prodanovic, Z., Dimmock, M., Lockie, D., Pavlov, K. M., Nesterets, Y. I., Thompson, D., Mayo, S. C., Paganin, D. M., Taba, S. T., Lewis, S., Brennan, P. C., Quiney, H. M., Gureyev, T. E.

“…Breast microcalcifications are an important primary radiological indicator of breast cancer. However, microcalcification classification and diagnosis may be…”
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Diffraction with wavefront curvature: a path to unique phase recovery by Peele, A. G., Quiney, H. M., Chapman, H. N., Nugent, K. A.

“…Modern X‐ray optics is able to produce very tightly focused beams. The size of these focused spots is comparable to the scale of large molecules and therefore…”
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Propagation‐based x‐ray phase‐contrast tomography of mastectomy samples using synchrotron radiation by Gureyev, T. E., Nesterets, Ya. I., Baran, P. M., Taba, S. T., Mayo, S. C., Thompson, D., Arhatari, B., Mihocic, A., Abbey, B., Lockie, D., Fox, J., Kumar, B., Prodanovic, Z., Hausermann, D., Maksimenko, A., Hall, C., Peele, A. G., Dimmock, M., Pavlov, K. M., Cholewa, M., Lewis, S., Tromba, G., Quiney, H. M., Brennan, P. C.

“…Purpose Propagation‐based phase‐contrast computed tomography (PB‐CT) is a method for three‐dimensional x‐ray imaging that utilizes refraction, as well as…”
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Relative roles of multiple scattering and Fresnel diffraction in the imaging of small molecules using electrons, Part II: Differential Holographic Tomography by Gureyev, T.E., Quiney, H.M., Kozlov, A., Paganin, D.M., Schmalz, G., Brown, H.G., Allen, L.J.

“…•The proposed 3D reconstruction method, termed Differential Holographic Tomography, is developed theoretically.•The method is also demonstrated computationally…”
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Fresnel coherent diffractive imaging by Williams, G J, Quiney, H M, Dhal, B B, Tran, C Q, Nugent, K A, Peele, A G, Paterson, D, de Jonge, M D

“…We present an x-ray coherent diffractive imaging experiment utilizing a nonplanar incident wave and demonstrate success by reconstructing a nonperiodic gold…”
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Wigner function analysis of high harmonic generation in atoms by Wells, D J, Quiney, H M

“…The Wigner function provides the expression of phase space dynamics in quantum mechanics. In an application to non-linear optics, we describe its construction…”
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Coherent diffractive imaging using short wavelength light sources by Quiney, H.M.

“…Techniques that recover images from diffraction data obtained using coherent short-wavelength light sources are currently under active development for…”
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Determining electronic damage to biomolecular structures in x-ray free-electron-laser imaging experiments by Curwood, E. K., Quiney, H. M., Nugent, K. A.

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Nanoscale Fresnel coherent diffraction imaging tomography using ptychography by Peterson, I, Abbey, B, Putkunz, C T, Vine, D J, van Riessen, G A, Cadenazzi, G A, Balaur, E, Ryan, R, Quiney, H M, McNulty, I, Peele, A G, Nugent, K A

“…We demonstrate Fresnel Coherent Diffractive Imaging (FCDI) tomography in the X-ray regime. The method uses an incident X-ray illumination with known curvature…”
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Fresnel coherent diffractive imaging: treatment and analysis of data by Williams, G J, Quiney, H M, Peele, A G, Nugent, K A

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