James Downes

Associate Professor

  • 784 Citations
  • 17 h-Index
19962020

Research output per year

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Research Outputs

  • 784 Citations
  • 17 h-Index
  • 51 Article
  • 5 Conference proceeding contribution
  • 1 Patent
2019

Magneto-mechanical trapping of micro-diamonds at low pressures

O'Brien, M. C., Dunn, S., Downes, J. E. & Twamley, J., 4 Feb 2019, In : Applied Physics Letters. 114, 5, p. 1-5 5 p., 053103.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Photochemical etching of carbonyl groups from a carbon matrix: The (001) diamond surface

Weston, L., Downes, J. E., Baldwin, C. G., Granados, E., Abdulkader Tawfik, S., Cui, X. Y., Stampfl, C. & Mildren, R. P., 8 Jan 2019, In : Physical Review Letters. 122, 1, p. 016802-1-16802-5 5 p., 016802.

Research output: Contribution to journalArticle

Open Access
File
23 Downloads (Pure)
2018

Plasmonic second-harmonic generation in gold: Lithium niobate thin films

Ng, V., Warrier, A. M., Lin, J., Spence, D. J., Downes, J. E., Coutts, D. W. & Dawes, J. M., 1 Feb 2018, In : Journal of the Optical Society of America B: Optical Physics. 35, 2, p. 302-307 6 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)
2017

Design and fabrication of reconfigurable laser-written waveguide circuits

Chaboyer, Z., Stokes, A., Downes, J., Steel, M. J. & Withford, M. J., 25 Dec 2017, In : Optics Express. 25, 26, p. 33056-33065 10 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Graphene photo-detector enhanced by plasmonic coupling

Maleki, A., Coutts, D. W., Downes, J. E., Cumming, B. P., Gu, M. & Dawes, J. M., 22 Nov 2017, 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017. Piscataway: Institute of Electrical and Electronics Engineers (IEEE), p. 1-3 3 p.

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Magnetic structure of DyN: a 161Dy Mössbauer study

Evans, J. P., Stewart, G. A., Cadogan, J. M., Hutchison, W. D., Mitchell, E. E. & Downes, J. E., 2017, In : Physical Review B: Condensed Matter and Materials Physics. 95, 5, p. 1-9 9 p., 054431.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Photocurrent enhancement of graphene photodetectors by photon tunneling of light into surface plasmons

Maleki, A., Cumming, B. P., Gu, M., Downes, J. E., Coutts, D. W. & Dawes, J. M., 18 Sep 2017, In : Journal of Optics (United Kingdom). 19, 10, p. 1-8 8 p., 105001.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Wavelength-selective patterning of multi-layered electronic devices

Downes, J. & McMahon, C., 15 Jun 2017, IPC No. H01L 21/00, G03F 7/095, Patent No. WO2017096429, 9 Dec 2016, Priority date 11 Dec 2015, Priority No. 20150905141

Research output: Patent

2016

Configurable heralded two-photon states on a chip

Vergyris, P., Meany, T., Lunghi, T., Downes, J., Steel, M. J., Withford, M. J., Alibart, O. & Tanzilli, S., 2016, Frontiers in Optics 2016: proceedings. Washington, D.C.: OSA - The Optical Society, p. 1-2 2 p. FTu3G.3

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Curved Gratings as Plasmonic Lenses for Linearly Polarised Light

Maleki, A., Vo, T. P., Hautin, A., Downes, J. E., Coutts, D. W. & Dawes, J. M., 1 Apr 2016, In : Plasmonics. 11, 2, p. 365-372 8 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

On-chip generation of heralded photon-number states

Vergyris, P., Meany, T., Lunghi, T., Sauder, G., Downes, J., Steel, M. J., Withford, M. J., Alibart, O. & Tanzilli, S., 24 Oct 2016, In : Scientific Reports. 6, p. 1-6 6 p., 35975.

Research output: Contribution to journalArticle

Open Access
File
17 Citations (Scopus)
13 Downloads (Pure)
2015

Second harmonic generation in plasmonic lithium niobate waveguides

Ng, V., Boes, A., Warrier, A. M., Lin, J., Spence, D., Mitchell, A., Downes, J. E., Coutts, D. W. & Dawes, J. M., 2015, European Quantum Electronics Conference, EQEC 2015. OSA - The Optical Society, 1 p. EH_P_12

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

2014

Focusing surface plasmons by a plasmonic lens

Vo, T. P., Maleki, A., Downes, J. E., Coutts, D. W. & Dawes, J. M., 2014, Plasmonics: Metallic Nanostructures and Their Optical Properties XII. Boardman, A. D. (ed.). Washington, DC: SPIE, Vol. 9163. p. 1726–1729 4 p. 91633L

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Intrinsic reduction of the ordered 4 f magnetic moments in semiconducting rare-earth nitride thin films: DyN, ErN, and HoN

Cortie, D. L., Brown, J. D., Brück, S., Saerbeck, T., Evans, J. P., Fritzsche, H., Wang, X. L., Downes, J. E. & Klose, F., 26 Feb 2014, In : Physical Review B: Condensed Matter and Materials Physics. 89, 6, p. 1-7 7 p., 064424.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Nanostructuring and oxidation of diamond by two-photon ultraviolet surface excitation: An XPS and NEXAFS study

Baldwin, C. G., Downes, J. E., McMahon, C. J., Bradac, C. & Mildren, R. P., 15 May 2014, In : Physical Review B: Condensed Matter and Materials Physics. 89, 19, p. 195422-1-195422-9 9 p., 195422.

Research output: Contribution to journalArticle

10 Citations (Scopus)
2013

Investigation of surface plasmon amplification in finite-width gold stripline based on "Nd:YVO4" crystal

Vo, T. P., Maleki, A., Downes, J. E., Coutts, D. W. & Dawes, J. M., 2013, 2013 Conference on Lasers and Electro-Optics (CLEO 2013): OSA Technical Digest. Washington, D.C.: Optical Society of America (OSA), p. 1-2 2 p. QTh4B.8

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

2012

Low activation energy for the removal of excess nitrogen in nitrogen rich indium nitride

Butcher, K. S. A., Chen, P. P. T. & Downes, J. E., 2 Jan 2012, In : Applied Physics Letters. 100, 1, p. 1-3 3 p., 011913.

Research output: Contribution to journalArticle

Open Access
File
7 Citations (Scopus)
4 Downloads (Pure)

P-f hybridization in the ferromagnetic semiconductor HoN

Brown, J. D., Downes, J. E., McMahon, C. J., Cowie, B. C. C., Tadich, A., Thomsen, L., Guo, J. H. & Glans, P. A., 13 Feb 2012, In : Applied Physics Letters. 100, 7, p. 1-4 4 p., 072108.

Research output: Contribution to journalArticle

5 Citations (Scopus)
2011

Characteristics of 2-photon ultraviolet laser etching of diamond

Mildren, R. P., Downes, J. E., Brown, J. D., Johnston, B. F., Granados, E., Spence, D. J., Lehmann, A., Weston, L. & Bramble, A., 1 Aug 2011, In : Optical Materials Express. 1, 4, p. 576-585 10 p.

Research output: Contribution to journalArticle

Open Access
File
21 Citations (Scopus)
7 Downloads (Pure)

Effects of crystallinity and chemical variation on apparent band-gap shift in polycrystalline indium nitride

Chen, P. P. T., Downes, J. E., Fernandes, A. J., Butcher, K. S. A., Wintrebert-Fouquet, M., Wuhrer, R. & Phillips, M. R., 3 Jan 2011, In : Thin Solid Films. 519, 6, p. 1831-1836 6 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)
2010

Electronic band structure information of GdN extracted from x-ray absorption and emission spectroscopy

Preston, A. R. H., Ruck, B. J., Lambrecht, W. R. L., Piper, L. F. J., Downes, J. E., Smith, K. E. & Trodahl, H. J., 2010, In : Applied Physics Letters. 96, 3, p. 032101-1-032101-3 3 p., 032101.

Research output: Contribution to journalArticle

Open Access
File
19 Citations (Scopus)
4 Downloads (Pure)

Tunable electrical and optical properties of hafnium nitride thin films

Farrell, I. L., Reeves, R. J., Preston, A. R. H., Ludbrook, B. M., Downes, J. E., Ruck, B. J. & Durbin, S. M., 2010, In : Applied Physics Letters. 96, 7, p. 071914-1-071914-3 3 p., 071914.

Research output: Contribution to journalArticle

Open Access
File
17 Citations (Scopus)
2 Downloads (Pure)
2009

Electronic structure of the organic semiconductor copper tetraphenylporphyrin (CuTPP)

Reid, I., Zhang, Y., Demasi, A., Blueser, A., Piper, L., Downes, J. E., Matsuura, A., Hughes, G. & Smith, K. E., 15 Nov 2009, In : Applied Surface Science. 256, 3, p. 720-725 6 p.

Research output: Contribution to journalArticle

14 Citations (Scopus)
2008

Calorimetric evaluation of responses of Sitophilus oryzae and Tribolium confusum to elevated temperatures and controlled atmospheres

Downes, C. J., van Epenhuijsen, C. W., Lill, R. E., Downes, J. E., Carpenter, A. & Brash, D., 2008, In : Journal of Stored Products Research. 44, 3, p. 295-303 9 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Electronic properties of (Ga,Mn)N thin films with high Mn content

Granville, S., Ruck, B. J., Preston, A. R. H., Stewart, T., Budde, F., Trodahl, H. J., Bittar, A., Downes, J. E. & Ridgway, M., 2008, In : Journal of Applied Physics. 104, 10, p. 1-5 5 p., 103710.

Research output: Contribution to journalArticle

Open Access
File
8 Citations (Scopus)

Electronic structure of the organic semiconductor Alq3 (aluminum tris-8-hydroxyquinoline) from soft x-ray spectroscopies and density functional theory calculations

Demasi, A., Piper, L. F. J., Zhang, Y., Reid, I., Wang, S., Smith, K. E., Downes, J. E., Peltekis, N., McGuinness, C. & Matsuura, A., 2008, In : Journal of Chemical Physics. 129, 22, p. 224705-1-224705-7 7 p., 224705.

Research output: Contribution to journalArticle

Open Access
File
20 Citations (Scopus)
80 Downloads (Pure)

Soft X-ray spectroscopy study of electronic structure in the organic semiconductor titanyl phthalocyanine (TiO-Pc)

Smith, K. E., Zhang, Y., Wang, S., Demasi, A., Reid, I., Piper, L. F. J., Matsuura, A. Y. & Downes, J. E., 2008, In : Journal of Materials Chemistry. 18, 15, p. 1792-1798 7 p.

Research output: Contribution to journalArticle

19 Citations (Scopus)

The local electronic structure of tin phthalocyanine studied by resonant soft X-ray emission spectroscopies

Peltekis, N., Holland, B. N., Piper, L. F. J., DeMasi, A., Smith, K. E., Downes, J. E., McGovern, I. T. & McGuinness, C., 30 Nov 2008, In : Applied Surface Science. 255, 3, p. 764-766 3 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)
2007

Comparison between experiment and calculated band structures for DyN and SmN

Preston, A. R. H., Granville, S., Housden, D. H., Ludbrook, B., Ruck, B. J., Trodahl, H. J., Bittar, A., Williams, G. V. M., Downes, J. E., DeMasi, A., Zhang, Y., Smith, K. E. & Lambrecht, W. R. L., 20 Dec 2007, In : Physical Review B: Condensed Matter and Materials Physics. 76, 24, p. 1-5 5 p., 245120.

Research output: Contribution to journalArticle

Open Access
File
38 Citations (Scopus)

Electronic structure of the organic semiconductor vanadyl phthalocyanine (VO-Pc)

Zhang, Y., Learmonth, T., Wang, S., Matsuura, A. Y., Downes, J., Plucinski, L., Bernardis, S., O'Donnell, C. & Smith, K. E., 2007, In : Journal of Materials Chemistry. 17, 13, p. 1276-1283 8 p.

Research output: Contribution to journalArticle

31 Citations (Scopus)

Electronic structures of wurtzite gan with ga and n vacancies

Pang, C., Shi, J. J., Zhang, Y., Butcher, K. S. A., Tansley, T. L., Downes, J. E. & Shang, J. X., 1 Jul 2007, In : Chinese Physics Letters. 24, 7, p. 2048-2051 4 p., 072.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Observation of multiple Zhang-Rice excitations in a correlated solid: Resonant inelastic X-ray scattering study of Li2CuO2

Learmonth, T., McGuinness, C., Glans, P. A., Downes, J. E., Schmitt, T., Duda, L. C., Guo, J. H., Chou, F. C. & Smith, K. E., 1 Aug 2007, In : EPL. 79, 4, p. 47012-p1-47012-p5 5 p., 47012.

Research output: Contribution to journalArticle

Open Access
File
20 Citations (Scopus)
6 Downloads (Pure)
2006

Electronic structure in thin film organic semiconductors studied using soft X-ray emission and resonant inelastic X-ray scattering

Zhang, Y., Downes, J. E., Wang, S., Learmonth, T., Plucinski, L., Matsuura, A. Y., McGuinness, C., Glans, P. A., Bernardis, S., O'Donnell, C. & Smith, K. E., 25 Oct 2006, In : Thin Solid Films. 515, 2 SPEC. ISS., p. 394-400 7 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)
2005

Electronic excitations in vanadium oxide phthalocyanine studied via resonant soft X-ray emission and resonant inelastic X-ray scattering

Zhang, Y., Wang, S., Learmonth, T., Plucinski, L., Matsuura, A. Y., Bernardis, S., O'Donnell, C., Downes, J. E. & Smith, K. E., 15 Sep 2005, In : Chemical Physics Letters. 413, 1-3, p. 95-99 5 p.

Research output: Contribution to journalArticle

16 Citations (Scopus)

Optical conductivity and x-ray absorption and emission study of the band structure of MnN films

Granville, S., Ruck, B. J., Budde, F., Koo, A., Downes, J. E., Trodahl, H. J., Bittar, A., Strickland, N., Williams, G. V. M., Lambrecht, W. R. L., Learmonth, T., Smith, K. E., Kennedy, V. J., Markwitz, A. & Schmitt, T., 15 Nov 2005, In : Physical Review B: Condensed Matter and Materials Physics. 72, 20, p. 1-8 8 p., 205127.

Research output: Contribution to journalArticle

8 Citations (Scopus)

X-ray spectroscopic study of the electronic structure of the high-dielectric-constant material Ca Cu3 Ti4 O12

McGuinness, C., Downes, J. E., Sheridan, P., Glans, P. A., Smith, K. E., Si, W. & Johnson, P. D., 2005, In : Physical Review B: Condensed Matter and Materials Physics. 71, 19, p. 1-9 9 p., 195111.

Research output: Contribution to journalArticle

28 Citations (Scopus)
2004

Electronic structure near the Fermi level of the organic semiconductor copper phthalocyanine

Downes, J. E., McGuinness, C., Glans, P. A., Learmonth, T., Fu, D., Sheridan, P. & Smith, K. E., 21 May 2004, In : Chemical Physics Letters. 390, 1-3, p. 203-207 5 p.

Research output: Contribution to journalArticle

42 Citations (Scopus)

Surface electronic structure of the organic superconductor κ-(ET)2Cu(NCS)2 studied via photoemission microscopy

Downes, J. E., Smith, K. E., Matsuura, A. Y., Lindau, I. & Schlueter, J. A., 1 Mar 2004, In : Surface Science. 551, 3, p. 219-227 9 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)
2003

Electronic structure of thin film silicon oxynitrides measured using soft x-ray emission and absorption

McGuinness, C., Fu, D., Downes, J. E., Smith, K. E., Hughes, G. & Roche, J., 15 Sep 2003, In : Journal of Applied Physics. 94, 6, p. 3919-3922 4 p.

Research output: Contribution to journalArticle

21 Citations (Scopus)

Influence of shallow core-level hybridization on the electronic structure of post-transition-metal oxides studied using soft X-ray emission and absorption

McGuinness, C., Stagarescu, C. B., Ryan, P. J., Downes, J. E., Fu, D., Smith, K. E. & Egdell, R. G., Oct 2003, In : Physical Review B: Condensed Matter and Materials Physics. 68, 16, p. 1651041-16510410 14859370 p., 165104.

Research output: Contribution to journalArticle

101 Citations (Scopus)

Measurements of anisotropic thermopower of magnetically aligned YBa2Cu3O7-δ ceramics: Evidence of successful texturing techniques

Liu, C. J., Wu, T. W., Downes, J. & Staines, M. P., 15 Jul 2003, In : Physica C: Superconductivity and its Applications. 390, 4, p. 374-378 5 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Soft X-Ray Emission and Resonant Inelastic X-Ray Scattering Studies of Transition Metal Oxides

Smith, K. E., McGuinness, C., Downes, J., Ryan, P., Fu, D., Hulbert, S. L., Honig, J. M. & Egdell, R., 2003, In : Materials Research Society Symposium - Proceedings. 755, p. 3-12 10 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Surface degradation of InxGa1-xN thin films by sputter-anneal processing: A scanning photoemission microscope study

Downes, J. E., Smith, K. E., Matsuura, A. Y., Lindau, I., Iliopoulos, E. & Moustakas, T. D., 1 Nov 2003, In : Journal of Applied Physics. 94, 9, p. 5820-5825 6 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)
2002

Band-gap evolution, hybridization, and thermal stability of InxGa1-xN alloys measured by soft X-ray emission and absorption

Ryan, P., McGuinness, C., Downes, J. E., Smith, K. E., Doppalapudi, D. & Moustakas, T. D., 24 Apr 2002, In : Physical Review B: Condensed Matter and Materials Physics. 65, 20, 7 p., 205201.

Research output: Contribution to journalArticle

16 Citations (Scopus)

Resonant soft x-ray emission spectroscopy of V2O3, VO2 and NaV2O5

Schmitt, T., Duda, L. C., Augustsson, A., Guo, J. H., Nordgren, J., Downes, J. E., Mcguinness, C., Smith, K. E., Dhalenne, G., Revcolevschi, A., Klemm, M. & Horn, S., Apr 2002, In : Surface Review and Letters. 9, 2, p. 1369-1374 6 p.

Research output: Contribution to journalArticle

29 Citations (Scopus)

X-ray spectroscopic studies of the bulk electronic structure of InGaN alloys

McGuinness, C., Downes, J. E., Ryan, P., Smith, K. E., Doppalapudi, D. & Moustakas, T. D., 2002, In : Materials Research Society Symposium - Proceedings. 743, p. 621-626 6 p.

Research output: Contribution to journalArticle

2000

Bandlike and excitonic states of oxygen in CuGeO3: Observation using polarized resonant soft-x-ray emission spectroscopy

Duda, L. C., Downes, J., McGuinness, C., Schmitt, T., Augustsson, A., Smith, K. E., Dhalenne, G. & Revcolevschi, A., 1 Feb 2000, In : Physical Review B: Condensed Matter and Materials Physics. 61, 6, p. 4186-4189 4 p.

Research output: Contribution to journalArticle

52 Citations (Scopus)

Surface electronic structure of p-type GaN(0001̄)

Ryan, P., Chao, Y. C., Downes, J., McGuinness, C., Smith, K. E., Sampath, A. V. & Moustakas, T. D., 10 Nov 2000, In : Surface Science. 467, 1-3, p. L827-L833 7 p.

Research output: Contribution to journalArticle

24 Citations (Scopus)
1999

Observation of highly dispersive surface states on GaN(0001)1x1

Chao, Y. C., Stagarescu, C. B., Downes, J. E., Ryan, P., Smith, K. E., Hanser, D., Bremser, M. D. & Davis, R. F., 1999, In : Physical Review B: Condensed Matter and Materials Physics. 59, 24

Research output: Contribution to journalArticle

40 Citations (Scopus)
1998

Density of states, hybridization, and band-gap evolution in AlxGa1-xN alloys

Duda, L. C., Stagarescu, C. B., Downes, J., Smith, K. E., Korakakis, D., Moustakas, T. D., Guo, J. & Nordgren, J., 15 Jul 1998, In : Physical Review B: Condensed Matter and Materials Physics. 58, 4, p. 1928-1933 6 p.

Research output: Contribution to journalArticle

63 Citations (Scopus)