Dr. Stephen H. Ashworth

Profil

Derzeitige StellungProfessor W-3 und Äquivalente
FachgebietPhysikalische Chemie von Molekülen, Flüssigkeiten und Grenzflächen, Biophysikalische Chemie,Atmosphärenchemie
KeywordsScience communication, Public Understanding of Science, Spectroscopy

Aktuelle Kontaktadresse

LandVereinigtes Königreich
OrtNorwich
Universität/InstitutionUniversity of East Anglia
Institut/AbteilungSchool of Chemical Sciences
Websitehttps://research-portal.uea.ac.uk/en/persons/stephen-ashworth

Gastgeber*innen während der Förderung

Prof. Dr. Eberhard RiedleMax-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie (MBI), Berlin
Beginn der ersten Förderung01.09.1994

Programm(e)

1993Humboldt-Forschungsstipendien-Programm

Publikationen (Auswahl)

2018Matthews, Susan E. and Cecioni, Samy and O'Brien, John E. and MacDonald, Colin J. and Hughes, David L. and Jones, Garth A. and Ashworth, Stephen H. and Vidal, Sebastien: Fixing the Conformation of Calix{[}4]arenes: When Are Three Carbons Not Enough?. In: CHEMISTRY-A EUROPEAN JOURNAL, 24, 2018, 4436-4444
2014van Leeuwen, Magda and Beeby, Andrew and Fernandes, Isabelle and Ashworth, Stephen H.: The photochemistry and photophysics of a series of alpha octa(alkyl-substituted) silicon, zinc and palladium phthalocyanines. In: PHOTOCHEMICAL \& PHOTOBIOLOGICAL SCIENCES, 13, 2014, 62-69
2014Magda van Leeuwen, Andrew Beeby, Isabelle Fernandes and Stephen H. Ashworth*: The photochemistry and photophysics of a series of alpha octa(alkyl-substituted) silicon, zinc and palladium phthalocyanines. In: Photochemical and Photobiological Sciences , 2014, 62-69
2013Stephen H. Ashworth: Generating Large Question Banks of Graded Questions with Tailored Feedback and its Effect on Student Performance.. In: New Directions, 2013, 55-59
2012Ross, Amanda J. and Crozet, Patrick and Richard, Cyril and Harker, Heather and Ashworth, Stephen H. and Tokaryk, Dennis W.: Resolved fluorescence spectra of NiH. Electronic structure, electronic energy transfer, and the Zeeman effect in low-lying states. In: MOLECULAR PHYSICS, 110, 2012, 2019-2033
2012Amanda J. Ross, Patrick Crozet, Cyril Richard, Heather Harker, Stephen H. Ashworth and Dennis W. Tokaryk: Resolved fluorescence spectra of NiH. Electronic structure, electronic energy transfer, and the Zeeman effect in low-lying states. In: Molecular Phyiscs, 2012, 2019-2033
2010van Leeuwen, Magda and Beeby, Andrew and Ashworth, Stephen H.: The photochemistry and photophysics of a series of non-peripherally substituted zinc phthalocyanines. In: PHOTOCHEMICAL \& PHOTOBIOLOGICAL SCIENCES, 9, 2010, 370-375
2009Martin, Juan C. Gomez and Ashworth, Stephen H. and Mahajan, Anoop S. and Plane, John M. C.: Photochemistry of OIO: Laboratory study and atmospheric implications. In: GEOPHYSICAL RESEARCH LETTERS, 36, 2009,
2009Vallon, Raphael and Ashworth, Stephen H. and Crozet, Patrick and Field, Robert W. and Forthomme, Damien and Harker, Heather and Richard, Cyril and Ross, Amanda J.: Room-Temperature Metal-Hydride Discharge Source, with Observations on NiH and FeH. In: JOURNAL OF PHYSICAL CHEMISTRY A, 113, 2009, 13159-13166
2007Joseph, D. M. and Ashworth, S. H. and Plane, J. M. C.: On the photochemistry of IONO$_2$: absorption cross section (240-370~nm) and photolysis product yields at 248~nm. In: PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 9, 2007, 5599-5607
2007Ashworth, S. H. and Fink, E. H.: The high resolution Fourier-transform chemiluminescence spectrum of the HS$_2$ radical. In: MOLECULAR PHYSICS, 105, 2007, 715-725
2007Plane, J. M. C. and Saiz-Lopez, A. and Allan, B. J. and Ashworth, S. H. and Jenniskens, P.: Variability of the mesospheric nightglow during the 2002 Leonid storms. In: ADVANCES IN SPACE RESEARCH, 39, 2007, 562-566
2006Plane, JMC and Joseph, DM and Allan, BJ and Ashworth, SH and Francisco, JS: An experimental and theoretical study of the reactions OIO plus NO and OH plus OH. In: JOURNAL OF PHYSICAL CHEMISTRY A, 110, 2006, 93-100
2006Hodges, PJ and Ashworth, SH and Beattie, IR and Brown, JM: Dispersed fluorescence spectroscopy of jet-cooled FeCl$_2$: A determination of ground-state vibrational parameters. In: CHEMICAL PHYSICS LETTERS, 422, 2006, 160-164
2006Hodges, Philip J. and Brown, John M. and Ashworth, Stephen H.: Rotational and vibrational structure in the 288~nm band system of the FeCl$_2$ radical. In: JOURNAL OF MOLECULAR SPECTROSCOPY, 237, 2006, 205-217
2006Hodges, Philip J. and Brown, John M. and Ashworth, Stephen H.: The observation of hot bands in the 288~nm system of the FeCl$_2$ radical. In: JOURNAL OF MOLECULAR SPECTROSCOPY, 240, 2006, 265-268
2005Joseph, DM and Ashworth, SH and Plane, JMC: The absorption cross-section and photochemistry of OIO. In: JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 176, 2005, 68-77
2004Saiz-Lopez, A and Saunders, RW and Joseph, DM and Ashworth, SH and Plane, JMC: Absolute absorption cross-section and photolysis rate of I$_2$. In: ATMOSPHERIC CHEMISTRY AND PHYSICS, 4, 2004, 1443-1450
2003Fitzpatrick, JAJ and Chekhlov, OV and Western, CM and Ashworth, SH: Sub-Doppler spectroscopy of the PH radical: Hyperfine structure in the A$^3\Pi$ state. In: JOURNAL OF CHEMICAL PHYSICS, 118, 2003, 4539-4545
2002Chekhlov, OV and Fitzpatrick, JAJ and Rosser, KN and Western, CM and Ashworth, SH: An all solid-state narrow bandwidth optical parametric oscillator and its applications to the high resolution spectroscopy of free radicals. In: JOURNAL OF MODERN OPTICS, 49, 2002, 865-876
2002Ashworth, SH and Allan, BJ and Plane, JMC: High resolution spectroscopy of the OIO radical: Implications for the ozone-depleting potential of iodine. In: GEOPHYSICAL RESEARCH LETTERS, 29, 2002,
2002Ashworth, SH and Hodges, PJ and Brown, JM: The detection of the electronic spectrum of FeCl$_2$ in the gas phase. In: PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 4, 2002, 5923-5924
2001Fitzpatrick, JAJ and Chekhlov, OV and Elks, JMF and Western, CM and Ashworth, SH: An injection seeded narrow bandwidth pulsed optical parametric oscillator and its application to the investigation of hyperfine structure in the PF radical. In: JOURNAL OF CHEMICAL PHYSICS, 115, 2001, 6920-6930
2000Jandt, KD and Mills, RW and Blackwell, GB and Ashworth, SH: Depth of cure and compressive strength of dental composites cured with blue light emitting diodes (LEDs). In: DENTAL MATERIALS, 16, 2000, 41-47
2000Stahl, F and Ashworth, SH and Jandt, KD and Mills, RW: Light-emitting diode (LED) polymerisation of dental composites: flexural properties and polymerisation potential. In: BIOMATERIALS, 21, 2000, 1379-1385
2000Ashworth, SH and Elks, JMF and Western, CM: Sub-Doppler spectroscopy with a narrow linewidth pulsed optical parametric oscillator: hyperfine structure in the PF radical. In: CHEMICAL PHYSICS LETTERS, 328, 2000, 197-202
1999Jandt, KD and Mills, RW and Blackwell, GB and Ashworth, SH: Composite compressive strength and light spectrum obtained with blue LEDs.. In: JOURNAL OF DENTAL RESEARCH, 78, 1999, 1053
1999Mills, RW and Jandt, KD and Ashworth, SH: Dental composite depth of cure with halogen and blue light emitting diode technology. In: BRITISH DENTAL JOURNAL, 186, 1999, 388-391
1999Mills, RW and Jandt, KD and Blackwell, GB and Ashworth, SH: Light emitting diode (LED) and halogen curing - Composite depth of cure.. In: JOURNAL OF DENTAL RESEARCH, 78, 1999, 1053
1999Kummrow, A and Ashworth, SH and Lenz, K: Resonance Raman and optical dephasing study of HITCI. In: LASER CHEMISTRY, 19, 1999, 41-44
1998Ashworth, SH and Brown, JM: Dispersed fluorescence from the 460~nm band system of NiCl$_2$: Observation of a new, low-lying electronic state. In: JOURNAL OF MOLECULAR SPECTROSCOPY, 191, 1998, 276-285
1998May, P. W. and Ashworth, S. H. and Pickard, C. D. O. and Ashfold, M. N. R. and Peakman, T. and Steeds, J. W.: Interactive Raman spectra of adamantane, diamantane and diamond, and their relevance to diamond film deposition. In: PHYSCHEMCOMM, 1, 1998,
1997Ashworth, SH and Kummrow, A and Lenz, K: Resonance Raman and optical dephasing study of tricarbocyanine dyes. In: JOURNAL OF RAMAN SPECTROSCOPY, 28, 1997, 537-546
1996Ross, AJ and Crozet, P and Bacis, R and Churassy, S and Erba, B and Ashworth, SH and Lakin, NM and Wickham, MR and Beattie, IR and Brown, JM: Laser-induced fluorescence from CuCl$_2$ in a free-jet expansion: High-resolution Fourier transform spectra. In: JOURNAL OF MOLECULAR SPECTROSCOPY, 177, 1996, 134-142
1996Ashworth, SH and Grieman, FJ and Brown, JM: Rotational analysis of bands in the 460~nm system of nickel dichloride produced in a free-jet expansion: Determination of the structure and electronic ground state of nickel dichloride. In: JOURNAL OF CHEMICAL PHYSICS, 104, 1996, 48-63
1996Jentzsch, T and Jupner, HJ and Ashworth, SH and Elsaesser, T: Second-order nonlinearities of polycrystalline molecular films studied on a 20~fs time scale. In: OPTICS LETTERS, 21, 1996, 492-494
1996Riedle, E and Ashworth, SH and Joschko, M and Woerner, M and Elsaesser, T: Tunable two-color spectrometer with sub-20~fs pump and probe pulses. In: Chergui, M, FEMTOCHEMISTRY: ULTRAFAST CHEMICAL AND PHYSICAL PROCESSES IN MOLECULAR SYSTEMS. 1996. 680-683
1996Riedle, E and Ashworth, SH and Hasche, T and Woerner, M and Elsaesser, T: Two color spectroscopy of the vibrational and vibronic dynamics of large molecules in solution, with 20~fs optical pulses. In: Chergui, M, FEMTOCHEMISTRY: ULTRAFAST CHEMICAL AND PHYSICAL PROCESSES IN MOLECULAR SYSTEMS. 1996. 521-526
1996Riedle, E and Hasche, T and Ashworth, SH and Woerner, M and Elsaesser, T: Vibrational and vibronic dynamics of large molecules in solution studied on a 20 femtosecond time scale. In: Svelto, O and DeSilvestri, S and Denardo, G, ULTRAFAST PROCESSES IN SPECTROSCOPY. 1996. 109-113
1996Ashworth, SH and Hasche, T and Woerner, M and Riedle, E and Elsaesser, T: Vibronic excitations of large molecules in solution studied by two-color pump-probe experiments on the 20~fs time scale. In: JOURNAL OF CHEMICAL PHYSICS, 104, 1996, 5761-5769
1995ASHWORTH, SH and JOSCHKO, M and WOERNER, M and RIEDLE, E and ELSAESSER, T: Generation of 16~fs pulses at 425~nm by extracavity frequency-doubling of a mode-locked Ti-sapphire laser. In: OPTICS LETTERS, 20, 1995, 2120-2122
1995ASHWORTH, SH and EVENSON, KM and BROWN, JM: Identification and analysis of the far-infrared laser magnetic-resonance spectrum of the HS$_2$ radical. In: JOURNAL OF MOLECULAR SPECTROSCOPY, 172, 1995, 282-295
1995HASCHE, T and ASHWORTH, SH and RIEDLE, E and WOERNER, M and ELSAESSER, T: Vibrational and vibronic dynamics of large molecules in solution studied on a 20~fs timescale. In: CHEMICAL PHYSICS LETTERS, 244, 1995, 164-170
1994RIEDLE, E and ASHWORTH, SH and FARRELL, JT and NESBITT, DJ: Stabilization and precise calibration of a continuous-wave difference-frequency spectrometer by use of a simple transfer cavity. In: REVIEW OF SCIENTIFIC INSTRUMENTS, 65, 1994, 42-48
1993SUHM, MA and FARRELL, JT and ASHWORTH, SH and NESBITT, DJ: High-resolution infrared-spectroscopy of DF trimer - a cyclic ground-state structure and df stretch induced intramolecular vibrational coupling. In: JOURNAL OF CHEMICAL PHYSICS, 98, 1993, 5985-5989
1993ASHWORTH, SH and GRIEMAN, FJ and BROWN, JM and JONES, PJ and BEATTIE, IR: Structure of nickel dichloride. In: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 115, 1993, 2978-2979
1992ASHWORTH, SH and BROWN, JM: The far-infrared laser magnetic-resonance spectrum of the SH radical. In: JOURNAL OF MOLECULAR SPECTROSCOPY, 153, 1992, 41-58
1991ASHWORTH, SH and BROWN, JM: The electric-dipole moments of SeH and GeH in their ground $^2\Pi$ states. In: CHEMICAL PHYSICS LETTERS, 182, 1991, 73-80
1990ASHWORTH, SH and GRIEMAN, FJ and BROWN, JM: Further observations of the 460~nm band system of nickel dichloride, cooled to lower temperatures in a free jet expansion. In: CHEMICAL PHYSICS LETTERS, 175, 1990, 660-666
1990GRIEMAN, FJ and ASHWORTH, SH and BROWN, JM and BEATTIE, IR: Laser excitation spectroscopy of NiCl$_2$ produced in a free-jet expansion. In: ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 200, 1990, 148-PHYS
1990ASHWORTH, SH and BROWN, JM: Structural-properties of the SeH radical, determined by laser magnetic-resonance at midinfrared and far-infrared wavelengths. In: JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 86, 1990, 1995-2004
1990GRIEMAN, FJ and ASHWORTH, SH and BROWN, JM and BEATTIE, IR: Vibrational analysis of the 460~nm band system of nickel dichloride produced in a free jet expansion. In: JOURNAL OF CHEMICAL PHYSICS, 92, 1990, 6365-6375
1988PAHNKE, R and ASHWORTH, SH and BROWN, JM: Detection of the N$_3$ free-radical by laser magnetic-resonance at 6.08~$\mu$m. In: CHEMICAL PHYSICS LETTERS, 147, 1988, 179-182