J R Simpson
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Explore the profile of J R Simpson including associated specialties, affiliations and a list of published articles.
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Articles
163
Citations
1420
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Recent Articles
1.
Campo J, Piao Y, Lam S, Stafford C, Streit J, Simpson J, et al.
Nanoscale Horiz
. 2020 Apr;
1(4):317-324.
PMID: 32260652
Chemical control of the endohedral volume of single-wall carbon nanotubes (SWCNTs) via liquid-phase filling is established to be a facile strategy to controllably modify properties of SWCNTs in manners significant...
2.
Simpson J, Mcpherson E
Environ Pollut
. 2011 Mar;
159(8-9):2088-93.
PMID: 21435760
Urban trees can produce a number of benefits, among them improved air quality. Biogenic volatile organic compounds (BVOCs) emitted by some species are ozone precursors. Modifying future tree planting to...
3.
Simpson J
J La State Univ Agric Mech Coll
. 2010 Oct;
7(6):22-4.
PMID: 21008691
No abstract available.
4.
Myslinski P, Chrostowski J, Koningstein J, Simpson J
Appl Opt
. 2010 Aug;
32(3):286-90.
PMID: 20802686
Stable and efficient self-mode locking in a Q-switched highly doped erbium fiber laser has been demonstrated. The proposed mechanism of the pulse formation based on self-phase modulation agrees well with...
5.
Tasker G, French W, Simpson J, Kaiser P, Presby H
Appl Opt
. 2010 Mar;
17(11):1836-42.
PMID: 20198077
Design considerations, fabrication, and transmission characteristics of single-mode optical fibers made with different borosilicate compositions are discussed. Fibers with core sizes as large as 15 microm and refractive-index differences below...
6.
French W, Tasker G, Simpson J
Appl Opt
. 2010 Feb;
15(7):1803-7.
PMID: 20165268
Fabrication techniques for graded refractive index fibers with SiO(2)-B(2)O(3) composition are shown to be well controlled. The resulting fibers demonstrate both low loss (less than 3 dB/km) at 900 nm...
7.
Wonsiewicz B, French W, Lazay P, Simpson J
Appl Opt
. 2010 Feb;
15(4):1048-52.
PMID: 20165119
Compensation of mode velocities in optical waveguides can be achieved by fabricating fibers having graded refractive index cores. One technique for measuring these index profiles is interference microscopy. We have...
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Krol D, Simpson J
Opt Lett
. 2009 Sep;
16(21):1650-2.
PMID: 19784097
The presence of defect states in the band gap is an essential ingredient of recent models of photoinduced second-harmonic generation (SHG) in fibers. We have created such states by doping...