Alan D Bristow
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Explore the profile of Alan D Bristow including associated specialties, affiliations and a list of published articles.
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22
Citations
239
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Recent Articles
1.
Gyawali S, Tirumala R, Loh H, Andiappan M, Bristow A
J Phys Chem C Nanomater Interfaces
. 2024 Feb;
128(5):2003-2011.
PMID: 38352855
Inversion analysis of transient absorption data to capture the photoexcited charge carrier population rate dynamics is a powerful technique for extracting realistic lifetimes and identifying recombination pathways. However, for highly...
2.
Xiang Y, Yan C, Stanescu T, Ma Y, Sooriyagoda R, Shi F, et al.
Nano Lett
. 2021 Oct;
21(20):8872-8879.
PMID: 34632782
The downscaling of nonlinear optical devices is significantly hindered by the inherently weak nonlinearity in regular materials. Here, we report a giant third-harmonic generation discovered in epitaxial thin films of...
3.
Piyathilaka H, Sooriyagoda R, Esmaielpour H, Whiteside V, Mishima T, Santos M, et al.
Sci Rep
. 2021 May;
11(1):10483.
PMID: 34006905
A type-II InAs/AlAs[Formula: see text]Sb[Formula: see text] 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...
4.
Munoz M, Medina A, Autry T, Moody G, Siemens M, Bristow A, et al.
Opt Lett
. 2020 Oct;
45(20):5852-5855.
PMID: 33057301
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...
5.
Dai Y, Bu Q, Sooriyagoda R, Tavadze P, Pavlic O, Lim T, et al.
J Phys Chem Lett
. 2019 Aug;
10(18):5381-5386.
PMID: 31448921
Solar-driven production of renewable energy (e.g., H) has been investigated for decades. To date, the applications are limited by low efficiency due to rapid charge recombination (both radiative and nonradiative...
6.
Piyathilaka H, Sooriyagoda R, Dewasurendra V, Johnson M, Zawilski K, Schunemann P, et al.
Opt Express
. 2019 Jun;
27(12):16958-16965.
PMID: 31252913
Optical rectification of near-infrared laser pulses generates broadband terahertz radiation in chalcopyrite crystals CdGeP, ZnGeP and CdSiP. The emission is characterized using linear-polarized excitation from 0.8 eV to 1.55 eV...
7.
Yousefi Sarraf S, Singh S, Garcia-Castro A, Trappen R, Mottaghi N, Cabrera G, et al.
ACS Nano
. 2019 Feb;
13(3):3457-3465.
PMID: 30807694
Aspects of the optoelectronic performance of thin-film ferromagnetic materials are evaluated for application in ultrafast devices. Dynamics of photocarriers and their associated spin polarization are measured using transient reflectivity (TR)...
8.
Esmaielpour H, Whiteside V, Piyathilaka H, Vijeyaragunathan S, Wang B, Adcock-Smith E, et al.
Sci Rep
. 2018 Aug;
8(1):12473.
PMID: 30127507
Hot electrons established by the absorption of high-energy photons typically thermalize on a picosecond time scale in a semiconductor, dissipating energy via various phonon-mediated relaxation pathways. Here it is shown...
9.
Bas D, Muniz R, Babakiray S, Lederman D, Sipe J, Bristow A
Opt Express
. 2016 Nov;
24(20):23583-23595.
PMID: 27828420
Optical injection and detection of charge currents is an alternative to conventional transport and photoemission measurements, avoiding the necessity of invasive contact that may disturb the system being examined. This...
10.
Yost B, Cushing S, Meng F, Bright J, Bas D, Wu N, et al.
Phys Chem Chem Phys
. 2015 Nov;
17(46):31039-43.
PMID: 26531849
Doping a semiconductor can extend the light absorption range, however, it usually introduces mid-gap states, reducing the charge carrier lifetime. This report shows that doping lanthanum dititinate (La2Ti2O7) with nitrogen...