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

2001

Field emission studies of low-temperature thermal annealing of nitrogen-doped hydrogenated amorphous carbon (a-C:H:N) films

Kuo, M., May, PW. & Ashfold, MNR., 2001, In : Diamond Rel. Mat. 10, p. 889 - 894

Research output: Contribution to journalArticle (Academic Journal)

Investigations of the optical emission accompanying pulsed ultraviolet laser ablation of graphite in vacuum

Claeyssens, F., Lade, RJ., Rosser, KN. & Ashfold, MNR., Jan 2001, In : Journal of Applied Physics. 89, p. 697 - 709 12 p.

Research output: Contribution to journalArticle (Academic Journal)

47 Citations (Scopus)

Low temperature diamond growth using CO2/CH4 plasmas: molecular beam mass spectrometry and computer simulation investigations

Petherbridge, JR., May, PW., Rosser, KN. & Ashfold, MNR., 2001, In : Journal of Applied Physics. 89, p. 1484 - 1492

Research output: Contribution to journalArticle (Academic Journal)

Modelling of the gas-phase chemistry in C-H-O gas mixtures for diamond chemical vapour deposition

Petherbridge, JR., May, PW. & Ashfold, MNR., 2001, In : Journal of Applied Physics. 89, p. 5219 - 5223

Research output: Contribution to journalArticle (Academic Journal)

Molecular beam mass spectrometry investigations of low temperature diamond growth using CO2/CH4 plasmas

Petherbridge, JR., May, PW., Pearce, S., Rosser, KN. & Ashfold, MNR., 2001, In : Diamond Rel. Mat. 10, p. 393 - 398

Research output: Contribution to journalArticle (Academic Journal)

18 Citations (Scopus)

On the mechanism of CH3 radical formation in hot filament activated CH4/H2 and C2H2/H2 gas mixtures

Smith, JA., Cameron, E., Ashfold, MNR., Mankelevich, YA. & Suetin, NV., 2001, In : Diamond Rel. Mater. 10, p. 358 - 363

Research output: Contribution to journalArticle (Academic Journal)

35 Citations (Scopus)

Unravelling aspects of the gas phase chemistry involved in diamond chemical vapour deposition

Ashfold, MNR., May, PW., Petherbridge, JR., Rosser, KN., Smith, JA., Mankelevich, YA. & Suetin, NV., 2001, In : Physical Chemistry Chemical Physics. 3, p. 3471 - 3485

Research output: Contribution to journalArticle (Academic Journal)

81 Citations (Scopus)

Vacuum ultraviolet photochemistry of methane, silane and germane

Cook, PA., Ashfold, MNR., Jee, Y-J., Jung, K-H., Harich, S. & Yang, X., 2001, In : Physical Chemistry Chemical Physics. 3, p. 1848 - 1860

Research output: Contribution to journalArticle (Academic Journal)

37 Citations (Scopus)
2000

Angular resolved studies of the Lyman-α photodissociation of HCN and DCN: new dynamical insights

Cook, PA., Langford, SR., Ashfold, MNR. & Dixon, RN., 2000, In : Journal of Chemical Physics. 113, p. 994 - 1004

Research output: Contribution to journalArticle (Academic Journal)

43 Citations (Scopus)

Field Emission Studies of Nitrogen-doped Diamond-like Carbon Films deposited using CH4/N2/Ne and CH4/NH3/Ne RF Plasmas

Kuo, MT., May, PW., Gunn, A., Marshall, JC., Ashfold, MNR. & Rosser, KN., 2000, In : International Journal of Modern Physics B. 14, p. 295 - 300

Research output: Contribution to journalArticle (Academic Journal)

Imaging Studies of the Multiphoton Excitation, Dissociation and Ionisation of Br2

Samartzis, PC., Kitsopoulos, TN. & Ashfold, MNR., 2000, In : Physical Chemistry Chemical Physics. 2, p. 453 - 459

Research output: Contribution to journalArticle (Academic Journal)

Optical emission spectroscopic studies of microwave enhanced diamond CVD using CH4/CO2 plasmas

Elliott, MA., May, PW., Petherbridge, J., Leeds, SM., Ashfold, MNR. & Wang, WN., 2000, In : Diamond Relat. Mater. 9, p. 311 - 316

Research output: Contribution to journalArticle (Academic Journal)

Photodissociation and photoionization of highly excited HI molecules

Regan, PM., Ascenzi, D., Wrede, E., Cook, PA., Ashfold, MNR. & Orr-Ewing, AJ., 2000, In : Physical Chemistry Chemical Physics. 2, p. 5364 - 5374

Research output: Contribution to journalArticle (Academic Journal)

11 Citations (Scopus)

Resonance Enhanced Multiphoton Ionisation Probing of H atoms and CH3 Radicals in a Hot Filament Chemical Vapour Deposition Reactor

Smith, JA., Cook, PA., Langford, SR., Redman, SA. & Ashfold, MNR., 2000, In : Thin Solid Films. 368, p. 169 - 175

Research output: Contribution to journalArticle (Academic Journal)

Velocity map imaging of the near-threshold photodissociation of IBr: accurate determination of De(I-Br)

Wrede, E., Laubach, S., Schulenberg, S., Orr-Ewing, AJ. & Ashfold, MNR., 2000, In : Chemical Physics Letters. 326, p. 22 - 32

Research output: Contribution to journalArticle (Academic Journal)

25 Citations (Scopus)
1999

193 nm laser ablation of CVD diamond and graphite in vacuum: plume analysis and film properties

Lade, RJ., Claeyssens, F., Rosser, KN. & Ashfold, MNR., 1999, In : Applied Physics A: Materials Science and Processing. 69, p. 935 - 939

Research output: Contribution to journalArticle (Academic Journal)

20 Citations (Scopus)

ArF (193 nm) Laser Ablation of Poly(methyl methacrylate)

Lade, RJ., Morley, IW., May, PW., Rosser, KN. & Ashfold, MNR., 1999, In : Diamond Rel. Mater. 8, p. 1654 - 1658

Research output: Contribution to journalArticle (Academic Journal)

18 Citations (Scopus)

Electronic Spectroscopy: Multiphoton Spectroscopy, Applications

Ashfold, MNR. & Western, CM., 1999, Encyclopedia of Spectroscopy and Spectrometry. Lindon, JC., Tranter, GE. & Holmes, JL. (eds.). Academic Press, p. 1424 - 1433

Research output: Chapter in Book/Report/Conference proceedingChapter in a book

Field emission conduction mechanisms in chemical-vapour-deposited diamond and DLC films

May, PW., Kuo, MT. & Ashfold, MNR., 1999, In : Diamond Rel. Mater. 8, p. 1490 - 1495

Research output: Contribution to journalArticle (Academic Journal)

H atom production in a hot filament chemical vapour deposition reactor

Redman, SA., Chung, C. & Ashfold, MNR., 1999, In : Diamond Rel. Mater. 8, p. 1383 - 1387

Research output: Contribution to journalArticle (Academic Journal)

6 Citations (Scopus)

Manufacture and performance of diamond coated thermocouples

Smith, NP., Scott, G., Ashfold, MNR. & Smith, DJ., 1999, In : Diamond Rel. Mater. 8, p. 956 - 960

Research output: Contribution to journalArticle (Academic Journal)

3 Citations (Scopus)

Modelling of the gas phase chemistry during diamond CVD: the role of different hydrocarbon species

Tsang, RS., May, PW. & Ashfold, MNR., 1999, In : Diamond Rel. Mater. 8, p. 242 - 245

Research output: Contribution to journalArticle (Academic Journal)

11 Citations (Scopus)

Molecular beam mass spectrometric studies of gas phase chemistry occurring during microwave plasma assisted chemical vapour deposition of diamond

Leeds, SM., May, PW., Bartlett, E., Ashfold, MNR. & Rosser, KN., 1999, In : Diamond Rel. Mater. 8, p. 1377 - 1382

Research output: Contribution to journalArticle (Academic Journal)

Molecular beam mass spectrometry studies of nitrogen additions to the gas phase during microwave-plasma-assisted chemical vapour deposition of diamond

Leeds, SM., May, PW., Ashfold, MNR. & Rosser, KN., 1999, In : Diamond Relat. Mater. 8, p. 226 - 230

Research output: Contribution to journalArticle (Academic Journal)

28 Citations (Scopus)

Near ultraviolet photolysis of ammonia and methylamine studied by H Rydberg atom photofragment translational spectroscopy

Ashfold, MNR., Dixon, R. N., Kono, M., Mordaunt, DH. & Reed, CL., 1999, MOLECULAR RYDBERG DYNAMICS. Child, MS. (ed.). COVENT GARDEN: Imperial College Press, p. 195-212 18 p.

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

Resonance enhanced multiphoton ionisation probing of H atoms in a hot filament chemical vapour deposition reactor

Redman, SA., Chung, C., Rosser, KN. & Ashfold, MNR., 1999, In : Physical Chemistry Chemical Physics. 1, p. 1415 - 1424

Research output: Contribution to journalArticle (Academic Journal)

43 Citations (Scopus)

Simulations of the hot-filament diamond CVD gas-phase environment: direct comparison with experimental measurements

Tsang, RS., May, P. W., Cole, J. & Ashfold, MNR., Aug 1999, In : Diamond and Related Materials. 8, 8-9, p. 1388-1392 5 p.

Research output: Contribution to journalArticle (Academic Journal)

13 Citations (Scopus)

Spectroscopy and Photochemistry of Rydberg States of Small Polyatomic Hydride Molecules

Ashfold, MNR. & Langford, SR., 1999, Rydberg States in Spectroscopy and Photochemistry. Sandorfy, C. (ed.). Kluwer Academic Publishers, p. 23 - 56

Research output: Chapter in Book/Report/Conference proceedingChapter in a book

Spin-orbit branching in Cl(2P) atoms produced by ultraviolet photodissociation of HCl

Regan, PM., Langford, SR., Ascenzi, D., Cook, PA., Orr-Ewing, AJ. & Ashfold, MNR., 1999, In : Physical Chemistry Chemical Physics. 1, p. 3247 - 3252

Research output: Contribution to journalArticle (Academic Journal)

Studies of the ablation plume arising in 193 nm laser irradiation of graphite in vacuum

Lade, RJ. & Ashfold, MNR., 1999, In : Surface and Coatings Technology. 120-121, p. 313 - 318

Research output: Contribution to journalArticle (Academic Journal)

13 Citations (Scopus)

The Ultraviolet Photodissociation Dynamics of Hydrogen Bromide

Regan, PM., Langford, SR., Orr-Ewing, AJ. & Ashfold, MNR., 1999, In : Journal of Chemical Physics. 110, p. 281 - 288

Research output: Contribution to journalArticle (Academic Journal)

86 Citations (Scopus)

The Ultraviolet Photodissociation of HN3: The H + N3 Product Channel

Cook, PA., Langford, SR. & Ashfold, MNR., 1999, In : Physical Chemistry Chemical Physics. 1, p. 45 - 56

Research output: Contribution to journalArticle (Academic Journal)

The UV photodissociation of HI revisited: REMPI measurements of the I(2P) atom spin-orbit branching fractions

Regan, PM., Ascenzi, D., Clementi, C., Ashfold, MNR. & Orr-Ewing, AJ., 1999, In : Chemical Physics Letters. 315, p. 187 - 193

Research output: Contribution to journalArticle (Academic Journal)

Ultraviolet Photolysis of Formyl Fluoride: the F + HCO Product Channel

Maul, C., Dietrich, C., Haas, T., Gericke, K-H., Tachikawa, H., Langford, SR., Kono, M., Reed, CL., Dixon, RN. & Ashfold, MNR., 1999, In : Physical Chemistry Chemical Physics. 1, p. 767 - 772

Research output: Contribution to journalArticle (Academic Journal)

12 Citations (Scopus)
1998

Cavity Ring-Down Spectroscopy

Wheeler, MD., Newman, SM., Orr-Ewing, AJ. & Ashfold, MNR., 1998, In : Journal of the Chemical Society, Faraday Transactions. 94, p. 337 - 351

Research output: Contribution to journalArticle (Academic Journal)

Influence of phosphine on the diamond growth mechanism: a molecular beam mass spectrometric investigation

Tsang, RS., May, PW., Ashfold, MNR. & Rosser, KN., 1998, Diamond and Related Materials. Vol. 7. p. 1651 - 1656

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

12 Citations (Scopus)

Investigation of hydrogenated amorphous carbon (a-C:H) films produced by ArF (193 nm) laser ablation of poly(methyl methacrylate)

Lade, RJ., Munns, DJ., Johnson, SE., May, PW., Rosser, KN. & Ashfold, MNR., 1998, Diamond and Related Materials. Vol. 7. p. 699 - 703

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

Investigations of Surface Damage and Conduction Mechanisms During Field Emission from CVD Diamond and DLC Films

May, PW., Höhn, S., Ashfold, MNR., Wang, WN., Fox, NA., Davis, TJ. & Steeds, JW., 1998, In : Diamond Films and Technol. 8, p. 237 - 247

Research output: Contribution to journalArticle (Academic Journal)

Ion imaging studies of the Cl(2PJ) and Br(2PJ) atomic products resulting from BrCl photodissociation in the wavelength range 235 - 540 nm

Cooper, MJ., Jackson, PJ., Rogers, LJ., Orr-Ewing, AJ., Ashfold, MNR. & Whitaker, BJ., 1998, In : Journal of Chemical Physics. 109, p. 4367 - 4377

Research output: Contribution to journalArticle (Academic Journal)

Microstructure and tensile properties of continuous diamond fibre reinforced titanium alloy

Griffith, PW., Wisbey, A., Wood, MJ., Partridge, PG., Preece, C., Nicholson, ED. & Ashfold, MNR., 1998, Diamond and Related Materials. Vol. 7. p. 957 - 961

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

1 Citation (Scopus)

Near threshold photodissociation of acetylene

Mordaunt, DH., Ashfold, MNR., Dixon, RN., Loeffler, P., Schnieder, L. & Welge, KH., 1998, In : Journal of Chemical Physics. 108, p. 519 - 526

Research output: Contribution to journalArticle (Academic Journal)

47 Citations (Scopus)

Near ultraviolet photodissociation dynamics of HBr and HI revealed by H (Rydberg) atom photofragment translational spectroscopy

Ashfold, MNR., Cook, PA., Langford, SR., Orr-Ewing, AJ. & Regan, PM., 1998, In : Proceedings of SPIE. 3271, p. 84 - 94

Research output: Contribution to journalArticle (Academic Journal)

1 Citation (Scopus)

On the use of resonance enhanced multiphoton ionisation (REMPI) for probing hydrogen atoms in diamond chemical vapour deposition using a hot filament reactor

Redman, SA., Langford, SR., Rosser, KN. & Ashfold, MNR., 1998, Proc. SPIE. Vol. 3484. p. 34 - 42

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

1 Citation (Scopus)

On the UV photodissociation dynamics of hydrogen iodide

Langford, SR., Regan, PM., Orr-Ewing, AJ. & Ashfold, MNR., 1998, In : Chemical Physics. 231, p. 245 - 260

Research output: Contribution to journalArticle (Academic Journal)

56 Citations (Scopus)

Resonance enhanced multiphoton ionisation (REMPI) and REMPI-photoelectron spectroscopy of ammonia

Ashfold, MNR., Langford, SR., Morgan, RA., Orr-Ewing, AJ., Western, CM., Scheper, CR. & De Lange, CA., 1998, In : European Physical Journal D. 4, p. 189 - 197

Research output: Contribution to journalArticle (Academic Journal)

State to state recoil anisotropies in the photodissociation of deuterated ammonia

Mordaunt, DH., Ashfold, MNR. & Dixon, RN., 1998, In : Journal of Chemical Physics. 109, p. 7659 - 7662

Research output: Contribution to journalArticle (Academic Journal)

27 Citations (Scopus)

The Effect of Diamond Surface Termination Species upon Field Emission Properties

May, PW., Stone, JC., Ashfold, MNR., Hallam, KR., Wang, WN. & Fox, NA., 1998, In : Diamond Rel.Mater. 7, p. 671 - 676

Research output: Contribution to journalArticle (Academic Journal)

39 Citations (Scopus)

The spectroscopy of high Rydberg states of ammonia

Langford, SR., Orr-Ewing, AJ., Morgan, RA., Western, CM., Ashfold, MNR., Rijkenberg, A., Scheper, CR., Buma, WJ. & De Lange, CA., 1998, In : Journal of Chemical Physics. 108, p. 6667 - 6680

Research output: Contribution to journalArticle (Academic Journal)

31 Citations (Scopus)

The ultraviolet photodissociation of Cl2O at 235 nm and HOCl at 235 nm and 266 nm

Tanaka, Y., Kawasaki, M., Matsumi, Y., Fujiwara, H., Ishiwata, T., Rogers, LJ., Dixon, RN. & Ashfold, MNR., 1998, In : Journal of Chemical Physics. 109, p. 1315 - 1323

Research output: Contribution to journalArticle (Academic Journal)

43 Citations (Scopus)