J B Greenwood
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Explore the profile of J B Greenwood including associated specialties, affiliations and a list of published articles.
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10
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111
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Recent Articles
1.
Comby A, Bloch E, Bond C, Descamps D, Miles J, Petit S, et al.
Nat Commun
. 2018 Dec;
9(1):5212.
PMID: 30523259
The fast and accurate analysis of chiral chemical mixtures is crucial for many applications but remains challenging. Here we use elliptically-polarized femtosecond laser pulses at high repetition rates to photoionize...
2.
Miles J, Fernandes D, Young A, Bond C, Crane S, Ghafur O, et al.
Anal Chim Acta
. 2017 Aug;
984:134-139.
PMID: 28843556
We present a proof-of-principle approach for discriminating chiral enantiomers based on the phenomenon of multiphoton photoelectron circular dichroism. A novel stereo detection setup was used to measure the number of...
3.
Mansson E, De Camillis S, Castrovilli M, Galli M, Nisoli M, Calegari F, et al.
Phys Chem Chem Phys
. 2017 Jun;
19(30):19815-19821.
PMID: 28657621
Understanding how energetic charged particles damage DNA is crucial for improving radiotherapy techniques such as hadron therapy and for the development of new radiosensitizer drugs. In the present study, the...
4.
Calegari F, Ayuso D, Trabattoni A, Belshaw L, De Camillis S, Anumula S, et al.
Science
. 2014 Oct;
346(6207):336-9.
PMID: 25324385
In the past decade, attosecond technology has opened up the investigation of ultrafast electronic processes in atoms, simple molecules, and solids. Here, we report the application of isolated attosecond pulses...
5.
Bryan W, Calvert C, King R, Greenwood J, Newell W, Williams I
Faraday Discuss
. 2012 Mar;
153:343-60.
PMID: 22452089
The use of strong-field (i.e. intensities in excess of 10(13) Wcm(-2)) few-cycle ultrafast (durations of 10 femtoseconds or less) laser pulses to create, manipulate and image vibrational wavepackets is investigated....
6.
Calvert C, Belshaw L, Duffy M, Kelly O, King R, Smyth A, et al.
Phys Chem Chem Phys
. 2012 Feb;
14(18):6289-97.
PMID: 22322861
Laser induced acoustic desorption (LIAD) has been used for the first time to study the parent ion production and fragmentation mechanisms of a biological molecule in an intense femtosecond (fs)...
7.
Greenwood J, Kelly O, Calvert C, Duffy M, King R, Belshaw L, et al.
Rev Sci Instrum
. 2011 May;
82(4):043103.
PMID: 21528991
In this paper an algorithm for extracting spectral information from signals containing a series of narrow periodic impulses is presented. Such signals can typically be acquired by pickup detectors from...
8.
Orr P, Williams I, Greenwood J, Turcu I, Bryan W, Pedregosa-Gutierrez J, et al.
Phys Rev Lett
. 2007 May;
98(16):163001.
PMID: 17501417
The experimental study of molecular dissociation of H2+ by intense laser pulses is complicated by the fact that the ions are initially produced in a wide range of vibrational states,...
9.
Pedregosa-Gutierrez J, Orr P, Greenwood J, Murphy A, Costello J, Zrost K, et al.
Phys Rev Lett
. 2004 Dec;
93(22):223001.
PMID: 15601085
It is now well established that energetic electron emission, nonsequential ionization, and high harmonic generation, produced during the interaction of intense, femtosecond laser pulses with atoms (and atomic positive ions),...
10.
Greenwood J, Johnston I, McKenna P, Williams I, Goodworth T, Sanderson J, et al.
Phys Rev Lett
. 2002 Jun;
88(23):233001.
PMID: 12059360
The interaction of an intense laser field with a beam of atomic ions has been investigated experimentally for the first time. The ionization dynamics of Ar+ ions and Ar neutrals...