Professor Michael N R Ashfold

B.Sc., Ph.D.(Birm.), C.Chem., F.R.S.C., F.Inst.P., FRS

  • BS8 1TS

1977 …2020

Research output per year

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Research Output

1988

Rydberg States of Ketene Revealed by Multiphoton Ionization Spectroscopy

Ashfold, M. N. R., COUCH, AD., DIXON, RN. & TUTCHER, B., 22 Sep 1988, In : Journal of Physical Chemistry. 92, 19, p. 5327-5332 6 p.

Research output: Contribution to journalArticle (Academic Journal)

24 Citations (Scopus)

STATE SELECTIVE PHOTODISSOCIATION DYNAMICS OF A STATE AMMONIA .1.

BIESNER, J., SCHNIEDER, L., SCHMEER, J., AHLERS, G., XIE, XX., WELGE, KH., Ashfold, M. N. R. & DIXON, RN., 15 Mar 1988, In : Journal of Chemical Physics. 88, 6, p. 3607-3616 10 p.

Research output: Contribution to journalArticle (Academic Journal)

122 Citations (Scopus)

SUB-DOPPLER INVESTIGATIONS OF RYDBERG STATES IN AMMONIA USING MULTIPHOTON EXCITATION

Ashfold, M. N. R., DIXON, RN., LITTLE, N., STICKLAND, RJ. & WESTERN, CM., Jun 1988, In : Kvantovaya elektronika. 15, 6, p. 1131-1136 6 p.

Research output: Contribution to journalArticle (Academic Journal)

THE B1E'' STATE OF AMMONIA - SUB-DOPPLER SPECTROSCOPY AT VACUUM ULTRAVIOLET ENERGIES

Ashfold, M. N. R., DIXON, RN., LITTLE, N., STICKLAND, RJ. & WESTERN, CM., 15 Aug 1988, In : Journal of Chemical Physics. 89, 4, p. 1754-1761 8 p.

Research output: Contribution to journalArticle (Academic Journal)

1989

RYDBERG STATES OF THE SH(SD) RADICAL REVEALED BY MULTIPHOTON IONIZATION SPECTROSCOPY

Ashfold, M. N. R., TUTCHER, B. & WESTERN, CM., 10 Apr 1989, In : Molecular Physics. 66, 5, p. 981-991 11 p.

Research output: Contribution to journalArticle (Academic Journal)

15 Citations (Scopus)

STATE SELECTIVE PHOTODISSOCIATION DYNAMICS OF A STATE AMMONIA .2.

BIESNER, J., SCHNIEDER, L., AHLERS, G., XIE, XX., WELGE, KH., Ashfold, M. N. R. & DIXON, RN., 1 Sep 1989, In : Journal of Chemical Physics. 91, 5, p. 2901-2911 11 p.

Research output: Contribution to journalArticle (Academic Journal)

139 Citations (Scopus)
1990

A REINVESTIGATION OF THE RYDBERG STATES OF H2S AND D2S BY 2-PHOTON RESONANT MULTIPHOTON IONIZATION SPECTROSCOPY

Ashfold, M. N. R., HARTREE, WS., SALVATO, AV., TUTCHER, B. & WALKER, A., 7 Jun 1990, In : Journal of the Chemical Society, Faraday Transactions. 86, 11, p. 2027-2034 8 p.

Research output: Contribution to journalArticle (Academic Journal)

CHARACTERIZATION OF THE E1B1 (3da1←1b1) RYDBERG STATE OF WATER BY RESONANCE-ENHANCED MULTIPHOTON IONIZATION (MPI) SPECTROSCOPY

Ashfold, M. N. R. & BAYLEY, JM., 7 Jan 1990, In : Journal of the Chemical Society, Faraday Transactions. 86, 1, p. 213-214 2 p.

Research output: Contribution to journalComment/debate (Academic Journal)

PHOTODISSOCIATION DYNAMICS OF H2S(D2S) FOLLOWING EXCITATION WITHIN ITS FIRST ABSORPTION CONTINUUM

XIE, X., SCHNIEDER, L., WALLMEIER, H., BOETTNER, R., WELGE, KH. & Ashfold, M. N. R., 1 Feb 1990, In : Journal of Chemical Physics. 92, 3, p. 1608-1616 9 p.

Research output: Contribution to journalArticle (Academic Journal)

77 Citations (Scopus)

PHOTODISSOCIATION DYNAMICS OF H2S AT 121.6 NM AND A DETERMINATION OF THE POTENTIAL-ENERGY FUNCTION OF SH(A2Σ+)

SCHNIEDER, L., MEIER, W., WELGE, KH., Ashfold, M. N. R. & WESTERN, CM., 15 Jun 1990, In : Journal of Chemical Physics. 92, 12, p. 7027-7037 11 p.

Research output: Contribution to journalArticle (Academic Journal)

219 Citations (Scopus)

Resonance-enhanced multiphoton ionisation of vibrational state selected NH3 molecules: A reinvestigation

Ashfold, M. N. R., Stickland, R. J. & Western, C. M., 1 Dec 1990, In : Journal of the Chemical Society, Faraday Transactions. 86, 17, p. 2921-2925 5 p.

Research output: Contribution to journalArticle (Academic Journal)

7 Citations (Scopus)

RESONANCE-ENHANCED MULTIPHOTON IONIZATION OF VIBRATIONAL-STATE SELECTED NH3 MOLECULES - A REINVESTIGATION

ALLEN, JM., Ashfold, M. N. R., STICKLAND, RJ. & WESTERN, CM., 7 Sep 1990, In : Journal of the Chemical Society, Faraday Transactions. 86, 17, p. 2921-2925 5 p.

Research output: Contribution to journalArticle (Academic Journal)

STEREOCHEMICAL AND ANGULAR-MOMENTUM CONSTRAINTS IN THE PHOTODISSOCIATION OF AMMONIA

Ashfold, M. N. R., DIXON, RN., IRVING, SJ., KOEPPE, HM., MEIER, W., NIGHTINGALE, JR., SCHNIEDER, L. & WELGE, KH., 15 Aug 1990, In : Philosophical Transactions of the Royal Society A: Physical and Engineering Sciences. 332, 1625, p. 375-386 12 p.

Research output: Contribution to journalArticle (Academic Journal)

1991

Characterisation of triplet states in doubly-charged positive ions: assignment of the 3Πg-3Σu+ electronic transition of N22+

Szaflarski, DM., Mullin, AS., Yokoyama, K., Ashfold, MNR. & Lineberger, WC., 1991, In : Journal of Physical Chemistry. 95, p. 2122 - 2124 2 p.

Research output: Contribution to journalArticle (Academic Journal)

Multiphoton absorption spectroscopy

Ashfold, MNR., 1991, In : Analytical Proceedings. 28, p. 416 - 418 2 p.

Research output: Contribution to journalArticle (Academic Journal)

Photodissociation of ammonia at 193.3 nm - rovibrational state distribution of the NH2(A) fragment

Woodbridge, EL., Ashfold, MNR. & Leone, SR., 1991, In : Journal of Chemical Physics. 94, p. 4195 - 4204 9 p.

Research output: Contribution to journalArticle (Academic Journal)

PREDISSOCIATION OF AMMONIA-A STATE STUDIED BY MICROWAVE OPTICAL DOUBLE-RESONANCE SPECTROSCOPY - COMMENT

Ashfold, M. N. R. & DIXON, RN., 8 Mar 1991, In : Chemical Physics Letters. 177, 6, p. 597-598 2 p.

Research output: Contribution to journalEditorial (Academic Journal)

Resonance enhanced multiphoton ionisation spectroscopy of the NH(ND) radical I: the d1Σ+ state

Ashfold, MNR., Clement, SG., Howe, JD. & Western, CM., 1991, In : Journal of the Chemical Society, Faraday Transactions. 87, p. 2515-23 8 p.

Research output: Contribution to journalArticle (Academic Journal)

The B1E" state of NH3: the Jahn-Teller effect revealed by infrared-optical double resonance

Allen, JM., Ashfold, MNR., Stickland, RJ. & Western, CM., 1991, In : Molecular Physics. 74, p. 49 - 60 11 p.

Research output: Contribution to journalArticle (Academic Journal)

Third harmonic generation in molecular gases

Ashfold, MNR. & Prince, JD., 1991, In : Molecular Physics. 73, p. 297 - 315 18 p.

Research output: Contribution to journalArticle (Academic Journal)

8 Citations (Scopus)

Vibrationally mediated photodissociation of nitrous acid

Holland, SM., Newnham, DA., Stickland, RJ., Ashfold, MNR. & Mills, IM., 1991, In : Journal of the Chemical Society, Faraday Transactions. 87, p. 3461 - 3472 11 p.

Research output: Contribution to journalArticle (Academic Journal)

33 Citations (Scopus)
1992

Dissociation dynamics of HCN(DCN) following photo-excitation at 121.6 nm

Morley, GP., Lambert, IR., Ashfold, MNR., Rosser, KN. & Western, CM., 1992, In : Journal of Chemical Physics. 97, p. 3157 - 3165 8 p.

Research output: Contribution to journalArticle (Academic Journal)

New singlet Rydberg states of the NH(ND) radical in the energy range 92000-100000 cm-1 characterized by resonance enhanced multiphoton ionization photoelectron spectroscopy

Clement, SG., Ashfold, MNR., Western, CM., De Beer, E., De Lange, CA. & Westwood, NPC., 1992, In : Journal of Chemical Physics. 96, p. 4963 - 4973 10 p.

Research output: Contribution to journalArticle (Academic Journal)

Photofragment translational spectroscopy

Ashfold, MNR., Lambert, IR., Mordaunt, DH., Morley, GP. & Western, CM., 1992, In : Journal of Physical Chemistry. 96, p. 2938 - 2949 11 p.

Research output: Contribution to journalArticle (Academic Journal)

Resonance enhanced multiphoton ionization spectroscopy of the imidogen radical

Ashfold, MNR., Clement, SG., Howe, JD. & Western, CM., 1992, In : Bulletin of the American Physical Society. 37, p. 1228 - 1228 1 p.

Research output: Contribution to journalArticle (Academic Journal)

Translational spectroscopy of H atom photofragments

Ashfold, MNR., Lambert, IR., Mordaunt, DH., Morley, GP. & Western, CM., 1992, 'Optical Methods for Time- and State- Resolved Chemistry' (ed. C-Y Ng), Proc SPIE. Vol. 1638. p. 144 - 155 11 p.

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

1 Citation (Scopus)

Triplet excited states of the NH(ND) radical revealed via two photon resonant multiphoton spectroscopy

Clement, SG., Ashfold, MNR., Western, CM., Johnson Iii, RD. & Hudgens, JW., 1992, In : Journal of Chemical Physics. 96, p. 5538 - 5540 2 p.

Research output: Contribution to journalArticle (Academic Journal)

Triplet Rydberg states of the imidogen radical characterized via two-photon resonance enhanced multiphoton ionization spectroscopy

Clement, SG., Ashfold, MNR., Western, CM., Johnson Iii, RD. & Hudgens, JW., 1992, In : Journal of Chemical Physics. 97, p. 7064 - 7072 8 p.

Research output: Contribution to journalArticle (Academic Journal)

18 Citations (Scopus)
1993

CVD diamond films produced in a parallel-plate RF reactor

May, PW., Ashfold, MNR., Rosser, KN. & Everitt, NM., 1993, Proc. 3rd Int. Symp. Diamond Mater. (eds. J.P. Dismukes and K.V. Ravi) . Electrochemical Society, Vol. 93-17. p. 448 - 454 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Diamond deposition in a hot filament reactor using different hydrocarbon precursor gases

May, PW., Everitt, NM., Trevor, CG., Ashfold, MNR. & Rosser, KN., 1993, In : Applied Surface Science. 68, p. 299 - 305 6 p.

Research output: Contribution to journalArticle (Academic Journal)

15 Citations (Scopus)

Hardness testing of Diamond and Diamond-like Carbon Films in "Diamond Materials"

Everitt, NM., Cock, AM., May, PW., Rosser, KN. & Ashfold, MNR., 1993, Proc. 3rd Int. Symp. Diamond Mater. (eds. J.P. Dismukes and K.V. Ravi) . Electrochemical Society, Vol. 93-17. p. 955 - 961 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Multiphoton ionisation spectroscopy of free radical species

Ashfold, MNR., Clement, SG., Howe, JD. & Western, CM., 1993, In : Journal of the Chemical Society, Faraday Transactions. 89, p. 1153 - 1172 19 p.

Research output: Contribution to journalArticle (Academic Journal)

59 Citations (Scopus)

Observation of the P2 radical by resonance enhanced multiphoton ionisation spectroscopy

Howe, JD., Puyuelo, P., Ashfold, MNR. & Western, CM., 1993, In : Journal of the Chemical Society, Faraday Transactions. 89, p. 2337 - 2343 6 p.

Research output: Contribution to journalArticle (Academic Journal)

Preparation of CVD diamond wires, fibres and tubes

May, PW., Rego, CA., Thomas, RG., Ashfold, MNR., Rosser, KN., Partridge, PG. & Everitt, NM., 1993, Proc. 3rd Int. Symp. Diamond Mater. (eds. J.P. Dismukes and K.V. Ravi) . Electrochemical Society

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Primary product channels in the photodissociation of methane at 121.6 nm

Mordaunt, DH., Lambert, IR., Morley, GP., Ashfold, MNR., Dixon, RN., Western, CM., Schnieder, L. & Welge, KH., 1993, In : Journal of Chemical Physics. 98, p. 2054 - 2065 11 p.

Research output: Contribution to journalArticle (Academic Journal)

132 Citations (Scopus)

Translational spectroscopy of H(D) atom fragments arising from the photodissociation of H2S(D2S): A redetermination of Doo(S-H)

Morley, GP., Lambert, IR., Mordaunt, DH., Wilson, SHS., Ashfold, MNR., Dixon, RN. & Western, CM., 1993, In : Journal of the Chemical Society, Faraday Transactions. 89, p. 3865 - 3876 11 p.

Research output: Contribution to journalArticle (Academic Journal)

Two colour laser induced grating spectroscopy of iodine vapour

Wheeler, MD., Lambert, IR. & Ashfold, MNR., 1993, In : Chemical Physics Letters. 211, p. 381 - 384 3 p.

Research output: Contribution to journalArticle (Academic Journal)

16 Citations (Scopus)
1994

Analysis of Hot Filament CVD Diamond Films on Etched and Unetched Wc-Co Surfaces

Everitt, NM., Silva, RF., Viera, J., Rego, CA., Henderson, CR., May, PW. & Ashfold, MNR., 1994, 'Advances in New Diamond Science and Technology' (eds. S. Saito, N. Fujimori, O. Fukunaga, M. Kamo, K. Kobashi and M. Yoshikawa). MYU KK, Tokyo, p. 787 - 790 3 p.

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

A reinvestigation of the near-ultraviolet photodissocation dynamics of the methyl radical

Wilson, SHS., Howe, JD., Rosser, KN., Ashfold, MNR. & Dixon, RN., 1994, In : Chemical Physics Letters. 227, p. 456 - 460 4 p.

Research output: Contribution to journalArticle (Academic Journal)

Chemical vapour deposited diamond fibres: manufacture and potential properties

Partridge, PG., May, PW. & Ashfold, MNR., 1994, In : Materials Science and Technology. 10, p. 177 - 189 12 p.

Research output: Contribution to journalArticle (Academic Journal)

Comparison of two models of Thin Diamond Film Microhardness data to predict the hardness of CVD Diamond

Cock, AM., Everitt, NM., May, PW., Rego, CA., Ashfold, MNR. & Rosser, KN., 1994, In : Diamond and Related Materials. 3, p. 783 - 786 3 p.

Research output: Contribution to journalArticle (Academic Journal)

1 Citation (Scopus)

CVD diamond growth on germanium for infra-red window applications

Rego, CA., May, PW., Williamson, EC., Ashfold, MNR., Chia, QS., Rosser, KN. & Everitt, NM., 1994, In : Diamond and Related Materials. 3, p. 939 - 941 2 p.

Research output: Contribution to journalArticle (Academic Journal)

CVD Diamond wires and tubes

May, PW., Rego, CA., Ashfold, MNR., Rosser, KN. & Everitt, NM., 1994, In : Diamond and Related Materials. 3, p. 810 - 813 3 p.

Research output: Contribution to journalArticle (Academic Journal)

51 Citations (Scopus)

Deposition of diamond films on sapphire: studies of interfacial properties and patterning techniques

May, PW., Rego, CA., Trevor, CG., Williamson, EC., Ashfold, MNR., Rosser, KN. & Everitt, NM., 1994, In : Diamond Rel.Mater. 3, p. 1375 - 1380 5 p.

Research output: Contribution to journalArticle (Academic Journal)

9 Citations (Scopus)

Dissociation dynamics of H2O (D2O) following photoexcitation at the Lyman-α wavelength (121.6 nm)

Mordaunt, DH., Ashfold, MNR. & Dixon, RN., 1994, In : Journal of Chemical Physics. 100, p. 7360 - 7375 15 p.

Research output: Contribution to journalArticle (Academic Journal)

Microhardness Testing as a Quality Control in the Production of Diamond Films

Cock, AM., Everitt, NM., May, PW., Rego, CA., Ashfold, MNR. & Rosser, KN., 1994, 'Advances in New Diamond Science and Technology' (eds. S. Saito, N. Fujimori, O. Fukunaga, M. Kamo, K. Kobashi and M. Yoshikawa). MYU KK, Tokyo, p. 783 - 786 3 p.

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Multiphoton spectroscopy of molecular species

Ashfold, MNR. & Howe, JD., 1994, In : Annual Review of Physical Chemistry. 45, p. 57 - 82 25 p.

Research output: Contribution to journalArticle (Academic Journal)

91 Citations (Scopus)

Near ultraviolet photolysis of acetylene: a precise determination of D0(HCC-H)

Mordaunt, DH. & Ashfold, MNR., 1994, In : Journal of Chemical Physics. 101, p. 2630 - 2631 1 p.

Research output: Contribution to journalArticle (Academic Journal)

Near ultraviolet photolysis of methanethiol studied by H atom photofragment translational spectroscopy

Wilson, SHS., Ashfold, MNR. & Dixon, RN., 1994, In : Journal of Chemical Physics. 101, p. 7538 - 7547 9 p.

Research output: Contribution to journalArticle (Academic Journal)

44 Citations (Scopus)