Items where Author is Walker, David

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Bracken, C., O'Sulllvan, C., Donohoe, A., Murphy, A., Savini, G., Juanola-Parramon, R., Baccichet, N., Guisseau, A., Ade, P., Pascale, E., Spencer, L., Walker, I., Dohlen, K., Lightfoot, J., Holland, W., Jones, M., Walker, D.D. and McMillan, A. (2015) Optical and Quasi-Optical Analysis of System Components for a Far-Infrared Space Interferometer. In: UNSPECIFIED.

Beaucamp, Anthony, Namba, Yoshiharu, Messelink, Wilhelmus, Walker, David D., Charlton, Phillip and Freeman, Richard (2014) Surface integrity of fluid jet polished tungsten carbide. Procedia CIRP, 13. pp. 377-381. ISSN 2212-8271

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Callender, M.J., Efstathiou, A., King, C.W., Walker, D.D., Gee, A.E., Lewis, A.J., Oldfield, S. and Steel, R.M. (2006) A swing arm profilometer for large telescope mirror element metrology. SPIE - International Society for Optical Engineering. Proceedings. ISSN 0277-786X

Cropper, M., Barlow, M., Perryman, M.A.C., Horne, K., Bingham, R., Page, M., Gutteridge, P. and Walker, D.D. (2003) A concept for a superconducting tunneling junction based spectrograph. Monthly Notices of the Royal Astronomical Society, 344. pp. 33-44. ISSN 0035-8711

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Dunn, C.R. and Walker, D.D. (2008) Pseudo-random tool paths for CNC sub-aperture polishing and other applications. Optics Express, 16 (23). pp. 18942-18949. ISSN 1094-4087

Doel, A.L., Lee, J.H. and Walker, D.D. (2000) Adaptive secondary mirror developments at UCL. Proceedings of SPIE - The International Society for Optical Engineering, 4007. ISSN 0277-786X

Diego, F., Brooks, D., Charalambous, A., Crawford, I.A., D'Arrigo, P., Dryburgh, M., Jamshidi, H., Radley, A.S., Savidge, T. and Walker, D.D. (1997) Conceptual design of the high-resolution optical spectrograph for the Gemini South Telescope. Proceedings of SPIE, 2871. pp. 1126-1134. ISSN 0277-786X

D'Arrigo, P., Diego, F. and Walker, D.D. (1996) Active Compensation of Flexure on the WHT ISIS Spectrograph. Monthly Notices of the Royal Astronomical Society, 281. pp. 679-686. ISSN 0035-8711

Diego, F., Fish, A., Barlow, M., Crawford, I., Spyromolio, J., Dryburgh, M., Brooks, D., Howarth, I. and Walker, D.D. (1995) The Ultra-High-Resolution Facility at the Anglo-Australian Telescope. Monthly Notices of the Royal Astronomical Society, 272 (2). pp. 323-332. ISSN 0035-8711

Diego, F. and Walker, D.D. (1985) On the possibility of increasing the throughput of astronomical spectrographs by overfilling the dispersing element. Monthly Notices of the Royal Astronomical Society, 217. pp. 347-354. ISSN 0035-8711

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Faehnle, Oliver, Reynolds, Christina, Yu, Guoyu and Walker, D.D. (2017) Machine acceleration effects on computer controlled polishing. Optical Fabrication and Testing Conference Proceedings 2017.

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Gray, C., Baker, I., Davies, G., Evans, R., Field, N., Fox-Leonard, T., Messelink, W., Mitchell, J., Rees, P., Waine, S., Walker, D.D. and Yu, G. (2013) Fast manufacturing of E-ELT mirror segments using CNC polishing. Proceedings of SPIE - The International Society for Optical Engineering, 8838. ISSN 0277-786X

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Hongwei, J., King, C. and Walker, D.D. (2010) Simulation and validation of a prototype swing arm profilometer for measuring extremely large telescope mirror-segments. Optics Express. ISSN 1094-4087

Hongwei, J., King, C. and Walker, D.D. (2010) Measurement of influence function using swing arm profilometer and laser tracker. Optics Express. ISSN 1094-4087

Han, W.Y., Clayton, M.J. and Walker, D.D. (1996) Steps toward efficient mosaic CCD system design. Publications of the Astronomical Society of the Pacific, 108 (729). pp. 1028-1032. ISSN 0004-6280

Han, W-Y., Clayton, M. and Walker, D.D. (1996) Steps Towards Efficient Mosaic CCD System. Publications of the Astronomical Society of the Pacific, 108. pp. 1028-1032. ISSN 0004-6280

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Kovacicinova, Jana, Zhang, Peng, Li, Jie, Yu, Guoyu and Walker, David D. (2016) Development of swinging part profilometer for optics. Proceedings of SPIE, 10151. 101510B. ISSN 0277-786X

King, C.W., Davies, G., Mitchell, J., Mitchell, P., Rees, P. and Walker, D.D. (2014) Fusing data from multiple interferometers for the measurement of off-axis aspheres. Proceedings - ASPE/ASPEN Summer Topical Meeting: Manufacture and Metrology of Freeform and Off-Axis Aspheric Surfaces. pp. 28-33. ISSN 9781887706650

Kim, S.W., Walker, D.D. and Brooks, D. (2003) Active profiling and polishing for efficient control of material removal from large precision surfaces with moderate asphericity. Mechatronics, 13. pp. 295-312. ISSN 0957-4158

Kim, S-W. and Walker, D.D. (2001) Measurement of Two-dimesional Distribution of Pure Axial Force in Active Polishing. Measurement Science and Technology, 12. pp. 1976-1982. ISSN 0957-0233

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Li, H., Zhang, W., Walker, D.D. and Yu, G. (2014) Active edge control in the precessions polishing process for manufacturing large mirror segments. Proceedings of SPIE: Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 9280. ISSN 1996-756X

Li, H., Walker, D.D., Yu, G. and Zhang, W. (2013) Modeling and validation of polishing tool influence functions for manufacturing segments for an extremely large telescope. Applied Optics, 52 (23). pp. 5781-5787. ISSN 1559-128X

Li, Hongyu, Walker, David D., Yu, Guoyu, Sayle, Andrew, Messelink, Wilhelmus, Evans, Rob and Beaucamp, Anthony (2013) Edge control in CNC polishing, paper 2: simulation and validation of tool influence functions on edges. Optics Express, 21 (1). pp. 370-381. ISSN 1094-4087

Li, H., Yu, G., Walker, D.D. and Evans, R. (2011) Modelling and measurement of polishing tool influence functions for edge control. Journal of the European Optical Society: Rapid Publications, 6 (ARTN 1). ISSN 1990-2573

Lu, Y., Doel, A.P., Walker, D.D. and Zhao, X. (2003) Dynamic measurement of displacement with a phase-shifting technique. Optical Engineering, 42. pp. 2006-2009. ISSN 0091-3286

Lu, Y., Doel, A.P. and Walker, D.D. (2003) The Measurement of Small Displacements with a New Phase Shifting Method. SPIE - International Society for Optical Engineering. Proceedings, 42 (7). ISSN 0277-786X

Lavrynenko, S.N., Nixon, G., Puttick, K.E. and Walker, D.D. (2002) Accidental and methodical defects of generation of precision and ultraprecision surfaces of polymer optics. Proceedings of SPIE - The International Society for Optical Engineering, 4411. pp. 102-105. ISSN 0277-786X

Lee, J.H., Doel, A.P. and Walker, D.D. (2000) Adaptive secondary mirror demonstrator: construction and preliminary evaluation. Optical Engineering, 39 (4). ISSN 0091-3286

Lee, J.H., Bigelow, B.C., Walker, D.D., Doel, A.P. and Bingham, R.G. (2000) Why adaptive secondaries? Publications of the Astronomical Society of the Pacific, 112 (767). pp. 97-107. ISSN 0004-6280

Lee, J.H., Walker, D.D. and Doel, A.P. (2000) An Adaptive Secondary Mirror demonstrator: Construction and Preliminary Evaluation. Optical Engineering, 39. pp. 1057-1062. ISSN 0091-3286

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MacEwen, Howard A., Fazio, Giovanni G., Lystrup, Makenzie, Batalha, Natalie, Siegler, Nicholas, Tong, Edward C., Veenendaal, Ian, Naylor, David, Gom, Brad, Gunuganti, Sudhakar, Winter, Calvin, Jones, Martyn and Walker, David D. (2016) Performance of a cryogenic test facility for 4 K interferometer delay line investigations. In: Space Telescopes and Instrumentation 2016, June 26 2016, Edinburgh.

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Navarro, Ramón, Burge, James H., Yu, Guoyu, Wu, Hsing-Yu, Walker, David D., Zheng, Xiao, Li, Hongyu, Dunn, Christina and Gray, Caroline (2016) Optimisation of grolishing freeform surfaces with rigid and semi-rigid tools. In: Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II Ramón Navarro; James H. Burge, June 26 2016, Edinburgh.

Navarro, Ramón, Walker, D.D., Cunningham, Colin R., Beaucamp, A., Evans, R., Prieto, Eric, Fox-Leonard, T., Fairhurst, N., Gray, C., Hamidi, S., Li, H., Messelink, W., Mitchell, J., Rees, P. and Yu, G. (2012) Edge-control and surface-smoothness in sub-aperture polishing of mirror segments. In: Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II.

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O'Dell, Stephen L., Citterio, O., Pareschi, Giovanni, Civitani, M. M., Arnold, J., Campana, S., Combrinck, H., Conconi, P., Cotroneo, V., Freeman, R., Mattaini, E., Morton, R., Motta, G., Pareschi, G., Parodi, G., Proserpio, L., Schuler, S., Simpson, P., Tagliaferri, G. and Walker, D.D. (2011) Progress on precise grinding and polishing of thin glass monolithic shell (towards WFXT). Proceedings of SPIE, 8147. p. 814714. ISSN 0277-786X

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Peggs, G., May-Miller, R., Walker, D.D., Atad-Ettedgui, E., Shore, P.R. and Smith, D.J. (2004) Dimensional metrology of mirror segments for extremely large telescopes. SPIE - International Society for Optical Engineering. Proceedings, 5382. pp. 224-228. ISSN 0277-786X

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Rascher, Rolf, Fähnle, Oliver, Wünsche, Christine, Schopf, Christian, Faehnle, Oliver, Yu, Guoyu and Walker, David D. (2016) Analysis of tool-mass-acceleration effects onto sub-aperture computer controlled polishing (CCP). In: Third European Seminar on Precision Optics Manufacturing.

Rozelot, J.P., Bingham, R. and Walker, D.D. (1994) Lightweight Telescopes for Lunar Observatories. Advances in Space Research, 14 (6). pp. 129-135. ISSN 0273-1177

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Swinyard, B., Auriacombe, O., Bradshaw, T., Brooks, D., Charlton, J., Crook, M., Davies, G., Ellison, B., Emes, M., Friend, J., Gerber, D., Gray, C., Henry, M., Hunt, T., Linfield, E., Navarathinam, N., Parks, S., Rawlings, T., Rea, S., Saunders, C., Savini, G., Tun, S.M., Walker, D.D., Wang, H. and Winter, B. (2016) The LOw Cost Upper atmosphere Sounder: the "Elegant Breadboard" programme. In: Millimeter Waves and THz Technology Workshop.

Savini, G., Ade, P.A.R., Baccichet, N., Bracken, C., Dohlenh, K., Donohoe, A., Gom, B., Griffin, M.J., Holland, W., Iafolla, V., Ivison, R.J., Jones, M., Juanola-Parramon, R., Lightfoot, J., Liu, S., McMillan, A., Murphy, J.A., Naylor, D., O'Sullivan, C., Pascale, E., Pezzutto, S., Rakotonimbahy, E., Schito, D., Spencer, L., Spinoglio, L., Swinyard, B., Venendaal, I., Vives, S., Walker, D.D., Leisawitz, D., Shi, S. and Matsuo, H. (2015) Progress in the critical assessment for a far-infrared space interferometer with double fourier modulation (FP7-FISICA). In: UNSPECIFIED.

Song, C., Walker, D.D. and Yu, G. (2011) Misfit of rigid tools and interferometer subapertures on off-axis aspheric mirror segments. Optical Engineering, 50 (7). ISSN 0091-3286

Szumski, R. and Walker, D.D. (1999) The Immersed Echelle - I Basic Properties. Monthly Notices of the Royal Astronomical Society, 302. pp. 139-144. ISSN 0035-8711

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Takahashi, Tadayuki, Civitani, M. M., Citterio, O., Campana, S., Conconi, P., Mattaini, E., Pareschi, G., Tagliaferri, G., Parodi, G., Burwitz, V., Hartner, G. D., Arnold, J., Schuler, S., Combrinck, H., Freeman, R., Morton, R., Simpson, P., Walker, D.D., Murray, Stephen S. and den Herder, Jan-Willem A. (2012) Thin glass shell oriented to wide field x-ray telescope. Proceedings of SPIE, 8443. 84430Q. ISSN 0277-786X

Tonnellier, X., Morantz, P., Shore, P., Baldwin, A., Evans, R. and Walker, D.D. (2007) Subsurface damage in precision ground ULE (R) and Zerodur (R) surfaces. Optics Express, 15 (19). pp. 12197-12205. ISSN 1094-4087

Tonnellier, X., Shore, P., Morantz, P., Baldwin, A., Evans, R. and Walker, D.D. (2007) Comparison of the subsurface damage induced when precision grinding ULE® and Zerodur® surfaces. In: UNSPECIFIED.

Tonnellier, X., Shore, P., Luo, X., Morantz, P., Baldwin, A., Evans, R. and Walker, D.D. (2006) Wheel Wear and Surface/Subsurface Qualities when Precision Grinding Optical Materials. SPIE - International Society for Optical Engineering. Proceedings, 6273. pp. 8-16. ISSN 0277-786X

Tonnellier, X., Shore, P., Morantz, P., Baldwin, A., Walker, D.D. and Evans, R. (2006) Subsurface damage caused during rapid grinding of Zerodurâ. In: UNSPECIFIED.

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Walker, D.D., Hsing-Yu, Wu, Yu, G., Li, H., Zhang, Wang and Lu, Chunlian (2017) Insight into aspheric misfit with hard tools: mapping the island of low mid-spatial frequencies. Applied Optics, 56 (36). pp. 9925-9931. ISSN 1559-128X

Walker, David D., Yu, Guoyu, Li, Hongyu, Reynolds, Christina and Bibby, Matt (2016) Closing the Metrology – Process Loop in CNC Polishing. SPIE - International Society for Optical Engineering. Proceedings, 10009. ISSN 0277-786X

Walker, David D. (2016) CNC Polishing and Metrology – from E-ELT Segments to Commercial Optics. In: Academic seminar by Prof David Walker: The Institute of Optics And Electronics, The chinese Academy of Sciences:, 6-8 June 2016, Chengdu, China. (Unpublished)

Walker, David D., Yu, G., Bibby, M., Dunn, C., Li, H., Wu, H. Y., Zheng, X. and Zhang, P. (2016) Robotic automation in computer controlled polishing. Journal of the European Optical Society: Rapid Publications, 11. p. 16005. ISSN 1990-2573

Walker, David D., Yu, Guo Yu, Gray, Caroline, Rees, Paul, Bibby, Matthew, Wu, Hsing Yu and Zheng, Xiao (2016) Process automation in computer controlled polishing. Advanced Materials Research, 1136. pp. 684-689. ISSN 1662-8985

Walker, D.D., Dunn, C., Yu, G., Bibby, M., Zheng, X., Wu, H.Y., Li, H. and Lu, C. (2015) The role of robotics in computer controlled polishing of large and small optics. In: Optical Manufacturing and Testing XI, August, 2015, San Diego, CA.

Walker, David D., Davies, Gary, Fox-Leonard, Tony, Gray, Caroline, Mitchell, John, Rees, Paul, Wu, Hsing Yu, Volkov, Andy and Yu, Guo Yu (2014) Advanced abrasive processes for manufacturing prototype mirror segments for the world’s largest telescope. Advanced Materials Research, 1017. pp. 532-538. ISSN 1662-8985

Wang, Wei, Yu, Guoyu, Xu, Min and Walker, David D. (2014) Coordinate transformation of an industrial robot and its application in deterministic optical polishing. Optical Engineering, 53 (5). 055102. ISSN 0091-3286

Walker, D.D., Beaucamp, A., Bibby, M., Fox-Leonard, T., Gray, C., King, C., Rees, P. and Yu, G. (2014) Interactions between manufacture and measurement of off-axis aspheres. Proceedings - ASPE/ASPEN Summer Topical Meeting: Manufacture and Metrology of Freeform and Off-Axis Aspheric Surfaces. pp. 72-77. ISSN 9781887706650

Walker, D.D., Yu, G., Li, H., Messelink, W., Evans, R. and Beaucamp, A. (2012) Edges in CNC polishing: from mirror-segments towards semiconductors, paper 1: edges on processing the global surface. Optics Express, 20 (18). pp. 19787-19798. ISSN 1094-4087

Walker, D.D., Beaucamp, A., Evans, R., Fox-Leonard, T., Fairhurst, N., Gray, C., Hamidi, S., Li, H., Messalink, W., Mitchell, J., Rees, P. and Yu, G. (2012) Edge-control and surface-smoothness in sub-aperture polishing of mirror segments. Proceedings of SPIE - The International Society for Optical Engineering, 8450. ISSN 0277-786X

Walker, David D., Yu, G. and Li, H. (2011) Research in new polishing techniques for off-axis mirror segments. In: Proceedings of: The Twenty-sixth Annual Meeting of The American Society for Precision Engineering. ASPE, 52 (2011). American Society for Precision Engineering, Denver Marriott City Center Hotel Denver, Colorado, pp. 31-34. ISBN 9781887706582

Walker, D.D., Atkins, C., Baker, I., Evans, R., Hamidi, S., Harris, P., Li, H., Messelink, W., Mitchell, J., Parry-Jones, M., Rees, P. and Yu, G. (2011) Technologies for producing segments for Extremely Large Telescopes. Proceedings of SPIE, 8126. ISSN 0277-786X

Walker, D.D., Citterio, O., Civitani, M.M., Arnold, J., Campana, S., Combrinck, H., Conconi, P., Cotroneo, V., Freeman, R., Mattaini, E., Morton, R., Motta, G., Pareschi, G., Parodi, G., Proserpio, L., Schuler, S., Simpson, C. and Tagliaferri, G. (2011) Progress on precise grinding and polishing of thin glass monolithic shell (towards WFXT). Proceedings of Optical Manufacturing and Testing IX conference.

Walker, D.D., Beaucamp, A., Yu, G. and Li, H. (2010) Edge-control on mirror segments. Optics InfoBase Conference Papers. ISSN 2162-2701

Walker, D.D., Jing, H. and King, C. (2010) Alignment and arm length measurement of the Swing Arm Profilometer using a laser tracker. SPIE - International Society for Optical Engineering. Proceedings. ISSN 0277-786X

Walker, D.D. (2010) The large optics opportunity in the UK - an update. Public Service Review: Devolved Government (20). pp. 12-13. ISSN 1470-5257

Walker, D.D., Beaucamp, A., Dunn, C., Evans, R., Freeman, R., Morton, R., Wei, X. and Yu, G. (2008) Active Control of Edges and Global Microstructure on Segmented Mirrors. SPIE - International Society for Optical Engineering. Proceedings. ISSN 0277-786X

Walker, D.D. (2008) Announcement of 5M Euro contract to produce seven prototype mirror segments for the European Extremely Large Telescope. Welsh Optoelectronics Newsletter.

Walker, D.D., Freeman, R., Morton, R., McCavana, G. and Beaucamp, A. (2006) Use of the 'Precessions'(TM) process for prepolishing and correcting 2D & 2 1/2 D form. Optics Express, 14 (24). pp. 11787-11795. ISSN 1094-4087

Walker, D.D., Freeman, R., Morton, R., McCavana, G. and Beaucamp, A. (2006) Use of the ‘Precessions’™ process for prepolishing and correcting 2D & 2½D form. Optics Express, 14 (24). pp. 11787-11795. ISSN 1094-4087

Walker, D.D. (2006) £1m Zeeko Machine will Help OpTIC Polish up the Opto-electronics Sector. Welsh Optoelectronics Forum Newsletter.

Walker, D.D., Beaucamp, A.T.H., Doubrovski, V., Dunn, C., Freeman, R., Hobbs, G., McCavana, G., Morton, R., Riley, D., Simms, J. and Wei, X. (2006) New developments in the Precessions process for manufacturing free-form, large-optical, and precision-mechanical surfaces. SPIE - International Society for Optical Engineering. Proceedings. ISSN 0277-786X

Walker, D.D., Beaucamp, A.T.H., Doubrovski, V., Dunn, C., Freeman, R., Hobbs, G., McCavana, G., Morton, R., Riley, D., Simms, J. and Wei, X. (2005) Recent advances in the control of form and texture on free-form surfaces (invited paper). SPIE - International Society for Optical Engineering. Proceedings, 5965. ISSN 0277-786X

Walker, D.D., Beaucamp, A.T.H., Doubrovski, V., Dunn, C., Freeman, R., McCavana, G., Morton, R., Riley, D., Simms, J. and Wei, X. (2005) New results extending the Precessions process to smoothing ground aspheres and producing freeform parts. SPIE - International Society for Optical Engineering. Proceedings, 5869. pp. 79-87. ISSN 0277-786X

Walker, D.D., Beaucamp, A.T.H., Doubrovski, V., Dunn, C., Freeman, R., Hobbs, G., McCavana, G., Morton, R., Riley, D., Simms, J. and Wei, X. (2005) New Developments in the Precessions process for Manufacturing Freeform, Large-optical, and Precision-mechanical Surfaces. SPIE - International Society for Optical Engineering. Proceedings, 6148. p. 614805. ISSN 0277-786X

Walker, D.D. (2005) OpTIC Hosts New National Centre for Ultra Precision Surfaces. Welsh Optoelectronics Forum Newsletter.

Walker, D.D., Freeman, R., Hobbs, G., King, A., McCavana, G., Morton, R., Riley, D. and Simms, J. (2005) Zeeko 1 metre polishing system. In: UNSPECIFIED.

Walker, D.D. and Hutchinson, M. (2005) Matching Manufacturing and Measurements-solutions for Free-Form Surfaces. In: UNSPECIFIED.

Walker, D.D., Beaucamp, A., Brooks, D., Doubrovski, V., Cassie, M.D., King, A., Libert, M., McCavana, G., Morton, R., Riley, D. and Simms, J. (2004) Recent developments of precessions polishing for larger components and free-form surfaces. SPIE - International Society for Optical Engineering. Proceedings, 5523. pp. 281-289. ISSN 0277-786X

Walker, D.D., Beaucamp, A.T., Brooks, D., Doubrovski, V., Cassie, M.D., Dunn, C., Freeman, R.R., King, A., Libert, M., McCavana, G., Morton, R., Riley, D. and Simms, J. (2004) New results from the Precessions polishing process scaled to larger sizes. SPIE - International Society for Optical Engineering. Proceedings, 5494. pp. 71-80. ISSN 0277-786X

Walker, D.D., Soon, Y. and Sug-Whan, K. (2003) Novel hybrid stylus for nanometric profilometry for large optical surfaces. Optics Express, 11 (15). pp. 1793-1798. ISSN 1094-4087

Walker, D.D., Brooks, D., King, A., Freeman, R., Morton, R., McCavana, G. and Sug-Whan, K. (2003) The precessions tooling for polishing and figuring flat,spherical and aspheric surfaces. Optics Express, 11 (8). pp. 958-964. ISSN 1094-4087

Walker, D.D., Doel, A.P., Bingham, R.G., Brooks, D., King, A.M, Peggs, G. and Hughes, B. (2002) Design Study Report-The Primary and Secondary Mirrors for the Proposed Euro50 Telescope. Project Report. Instituto de Astrofisica de Canarias. (Submitted)

Walker, D.D. and D'Arrigo, P. (1996) On the Stability of Cassegrain Spectrographs'. Monthly Notices of the Royal Astronomical Society, 281. pp. 673-678. ISSN 0035-8711

Walker, D.D. (1993) Optical Instruments - Where We Go From Here. In: Optics in Astronomy. Cambridge University Press.

Walker, David D. (1988) Overall Philosophy of the Echelle Spectrographs for the Anglo-Australian Telescope and William Herschel Telescope. In: Instrumentation for Ground-Based Optical Astronomy. Present and Future The Ninth Santa Cruz Summer Workshop in Astronomy and Astrophysics, July 13–July 24, 1987, Lick Observatory . Springer, New York, USA, pp. 21-32. ISBN 978-1-4612-8387-4

Walker, D.D., Sandford, P., Lyons, A., Fordham, J., Bone, D., Walker, A. and Boksenberg, A. (1985) The UCL Charge-Coupled Device Camera at the South African Astronomical Observatory. Advances in Electronics and Electron Physics, 64 A. pp. 185-192. ISSN 0065-2539

Walker, D.D. and Diego, F. (1985) Design Philosophy of the forthcoming echelle spectrographs for the AAT and LPO. Monthly Notices of the Royal Astronomical Society, 217. pp. 355-365. ISSN 0035-8711

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Yu, Guoyu, Walker, David D., Li, Hongyu, Zheng, Xiao and Beaucamp, Anthony (2017) Research on edge-control methods in CNC polishing. Journal of the European Optical Society-Rapid Publications, 13 (24). ISSN 1990-2573

Yu, G., Walker, D.D. and Li, H. (2012) Research on fabrication of mirror segments for E-ELT. Proceedings of SPIE, 8416. ISSN 0277-786X

Yu, G., Walker, D.D. and Li, H. (2012) Implementing a grolishing process in Zeeko IRP machines. Applied Optics, 51 (27). pp. 6637-6640. ISSN 1559-128X

Yu, G., Li, H. and Walker, D.D. (2011) Removal of Mid Spatial-Frequency Features in Mirror Segments. Journal of the European Optical Society: Rapid Publications, 6 (ARTN 1). ISSN 1990-2573

Yang, H., Kim, S. and Walker, D.D. (2004) A novel profilometer for nanometric form assessment for large machined surfaces. Key Engineering Materials, Advances in Abrasive Technology VI, 257. pp. 225-230. ISSN 1013-9826

Yang, H.S., Kim, S.W. and Walker, D.D. (2003) A novel laser datum series for nanometric profilometry for large optical surfaces. Optics Express, 11 (6). pp. 624-631. ISSN 1094-4087

Yang, H.S. and Walker, D.D. (2002) Progress on development of prototype laser reference system for stylus profilometry of large optics. Proceedings of SPIE, 4411. pp. 161-170. ISSN 0277-786X

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Zhang, Peng, Li, Jie, Yu, Guoyu and Walker, David D. (2016) Development of Swinging Part Profilometer. In: Optics and Measurement 2016, 11th-14th October 2016, Liberec, Czech Republic. (Unpublished)