Hubert M Martin
- Project Scientist, Mirror Polishing Program
- Associate Research Professor, Optical Sciences
- Member of the Graduate Faculty
Contact
- (520) 621-9582
- Steward Observatory Mirror Lab, Rm. 000108
- Tucson, AZ 85721
- Hmartin@arizona.edu
Biography
Buddy Martin is the Project Scientist for Mirror Polishing at the Richard F. Caris Mirror Lab. He leads the development of fabrication and testing for large optics, including the 8.4 m segments of the Giant Magellan Telescope. Previous manufacturing achievements include the two 8.4 m primary mirrors of the Large Binocular Telescope, the 8.4 m combined primary and tertiary mirror for the Large Synoptic Survey Telescope, and thin deformable secondary mirrors for the LBT. Buddy has a Ph. D. in physics from Cambridge University and has been at Steward Observatory since 1986. He worked in radio astronomy before moving up to manufacturing optics.
Degrees
- Ph.D. Physics
- Cambridge University, Cambridge, United Kingdom
- Observations and Models of Molecular Clouds
Awards
- A. E. Conrady Award
- SPIE, Fall 2019
Interests
Research
Optical fabricationOptical testingActive optics
Courses
No activities entered.
Scholarly Contributions
Chapters
- Hill, J., Martin, H., & Angel, R. (2013). Honeycomb Mirrors for Large Telescopes. In Planets, Stars and Stellar Systems.~Volume 1: Telescopes and Instrumentation(p. 137).
Proceedings Publications
- Martin, H. M., Ceragioli, R., Jannuzi, B. T., Kim, D. W., Kingsley, J. S., Law, K., Loeff, A., Lutz, R., McMahon, T. J., Meyen, S., Oh, C. J., Tuell, M. T., Weinberger, S. N., West, S. C., & Wortley, R. (2020, December). Manufacture of 8.4 m segments for the GMT primary mirror. In SPIE 11451, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV.
- Xin, B., Neill, D. R., Thomas, S., Claver, C. F., Contaxis, C., Hileman, E., Hubler, W. W., Loeff, A. R., Kenagy, K. L., Martin, H. M., Meyen, S., Tuell, M. T., & West, S. C. (2020, December). Rubin Observatory primary tertiary mirror cell assembly: optical testing of the fully assembled mirror support. In Proc. SPIE 11445, Ground-based and Airborne Telescopes VIII.
- Martin, H. M. (2019, September). Making mirrors for giant telescopes. In SPIE 11116, Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems II, 11116, 111160J-1 - 111160J-16.More infoInvited plenary talk
- Kingsley, J. S., Angel, R., Davison, W., Neff, D., Teran, J., Assenmacher, B., Peyton, K., Martin, H. M., Oh, C., Kim, D., & others, . (2018). An inexpensive turnkey 6.5 m observatory with customizing options. In Ground-based and Airborne Telescopes VII, 10700.
- Martin, H. M., Allen, R., Gasho, V., Jannuzi, B. T., Kim, D. W., Kingsley, J. S., Law, K., Loeff, A., Lutz, R. D., McMahon, T. J., & others, . (2018). Manufacture of primary mirror segments for the Giant Magellan Telescope. In Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III, 10706.
- Oh, C. J., Lowman, A. E., Martin, H. M., & Smith, G. A. (2018). Process optimization for efficient convergence in large optics fabrication. In Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III, 10706.
- Kim, D. W., Burge, J. H., Davis, J. M., Martin, H. M., Tuell, M. T., Graves, L., & West, S. C. (2016, July). New and improved technology for manufacture of GMT primary mirror segments. In Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, Proc. SPIE 9912.
- Martin, H. M., Angel, J. R., Angeli, G., Burge, J. H., Gressler, W., Kim, D. W., Kingsley, J. S., Law, K., Liang, M., Neill, D., Sebag, J., Strittmatter, P. A., Tuell, M. T., West, S. C., Woolf, N. J., & Xin, B. (2016, July). Manufacture and final tests of the LSST monolithic primary/tertiary mirror. In Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, Proc. SPIE 9912.
- Martin, H. M., Burge, J. H., Davis, J. M., Kim, D. W., Kingsley, J. S., Law, K., Loeff, A., Lutz, R. D., Merrill, C., Strittmatter, P. A., Tuell, M. T., Weinberger, S. N., & West, S. C. (2016, July). Status of mirror segment production for the Giant Magellan Telescope. In Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, Proc. SPIE 9912.
- Sebag, J., Gressler, W., Liang, M., Neill, D., Araujo-Hauck, C., Andrew, J., Angeli, G., Cho, M., Claver, C., Daruich, F., Gessner, C., Hileman, E., Krabbendam, V., Muller, G., Poczulp, G., Repp, R., Wiecha, O., Xin, B., Kenagy, K., , Martin, H. M., et al. (2016, August). LSST primary/tertiary monolithic mirror. In Ground-based and Airborne Telescopes VI, Proc. SPIE 9906.
- Davis, J. M., Martin, H. M., Kim, D. W., Loeff, A. R., Kenagy, K. L., Sisk, R. W., & Hagen, J. R. (2015, October). Advances in diamond generating for 8.4 meter telescope mirrors. In Optifab 2015, Proc. SPIE 9633, Proc. of SPIE Vol. 9633, 96330Y.
- Burge, J. H., Kim, D. W., & Martin, H. M. (2014, June). Process optimization for polishing large aspheric mirrors. In Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, Proc. SPIE 9151.
- Martin, H. M., Allen, R. G., Burge, J. H., Cuerden, B., Gressler, W. J., Hubler, W., Kim, D. W., Kingsley, J. S., Law, K., Strittmatter, P. A., Tuell, M. T., West, S. C., Zhao, C., & Zhou, P. (2014, June). Manufacture of the combined primary and tertiary mirrors of the Large Synoptic Survey Telescope. In Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, Proc. SPIE 9151.
- Martin, H. M., Allen, R. g., Burge, J. H., Davis, J. M., Davison, W. B., Johns, M., Kim, D. W., Kingsley, J. S., Law, K., Lutz, R., Strittmatter, P. A., Su, P., Tuell, M. T., West, S. C., & Zhou, P. (2014, June). Production of primary mirror segments for the Giant Magellan Telescope. In Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, Proc. SPIE 9151.
- Tuell, M. T., Burge, J. H., Cuerden, B., Gressler, W. J., Martin, H. M., West, S. C., & Zhao, C. (2014, June). Final acceptance testing of the LSST monolithic primary/tertiary mirror. In Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, Proc. SPIE 9151.
- Tuell, M. T., Hubler, W., Martin, H. M., West, S. C., & Zhou, P. (2014, June). Data processing for fabrication of GMT primary segments: raw data to final surface maps. In Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, Proc. SPIE 9151.
- Kim, D. W., Martin, H. M., & Burge, J. H. (2013, sep). Optical surfacing process optimization using parametric smoothing model for mid-to-high spatial frequency error control. In Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, 8884.
- Fan, B., Burge, J. H., Martin, H., Zeng, Z., Li, X., & Zhou, J. (2012). Dwell time calculation for computer controlled large tool. In Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, 8515.
- Martin, H. M., Allen, R. G., Burge, J. H., Kim, D. W., Kingsley, J. S., Law, K., Lutz, R. D., Strittmatter, P. A., Su, P., Tuell, M. T., West, S. C., & Zhou, P. (2012, sep). Production of 8.4m segments for the Giant Magellan Telescope. In Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, 8450.
- Su, P., Wang, S., Khreishi, M., Wang, Y., Su, T., Zhou, P., Parks, R. E., Law, K., Rascon, M., Zobrist, T., Martin, H., & Burge, J. H. (2012, sep). SCOTS: a reverse Hartmann test with high dynamic range for Giant Magellan Telescope primary mirror segments. In Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, 8450.
- Tuell, M. T., Martin, H. M., Burge, J. H., Ketelsen, D. A., Law, K., Gressler, W. J., & Zhao, C. (2012, sep). Fabrication of the LSST monolithic primary-tertiary mirror. In Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, 8450.
Presentations
- Whitsitt, R., Martin, H. M., & Loeff, A. (2021, June). Using motor current to monitor large mirror polishing in real time. OSA Optical Design and Fabrication 2021. virtual: Optical Society of America.More infoMeasurement of the motor current used to drive orbital lap motion allows monitoring of the interfacial drag force during polishing of the 8.4 m off-axis segments of the Giant Magellan Telescope’s primary mirror.
Others
- Martin, H. M. (2019, September). Final Report on GMT Primary Mirror Segment 2. Steward Observatory document, submitted to GMTO.
- Martin, H. M. (2017, February). Lap shape sensitivity.More infoReport gives sensitivity of shape errors in stressed lap to most sources of error, including measurement of all coordinates on the LPM, displacement of GMT segment from nominal position, and displacements of sensors used to measure lap shape changes. PowerPoint format for best illustration of the effects as well as their magnitudes.
- Martin, H. M. (2017, January). Determination of LPM, stressed lap and mirror coordinates.More infoProcedure for using laser tracker to define coordinate systems for the LPM, stressed lap (on east side of LPM), and GMT segment. Following this procedure leads to accurate alignment of the three objects in all necessary degrees of freedom. A companion procedure (also attached) does the same for the orbital polisher mounted on the west side of the LPM.
- Martin, H. M. (2017, January). Revised figure specification for GMT segments.More infoProposed revision to figure specification for GMT primary mirror segments, based on discussions with Steward Observatory and GMTO staff. Report includes demonstration that the proposed specification can be met with acceptable effort and that it guarantees acceptable performance in the telescope.
- Martin, H. M. (2017, July). Lifter calibration and control.More infoReport lays out relations and algorithm for calibration and control of stressed lap actuators that determine polishing force (pressure) and moments (pressure gradients). It serves to guide the engineers who develop the software for these operations.
- Martin, H. M., West, S., Tuell, M., & Allen, R. (2017, September). Reference Tests of GMT Segment 1.More infoReport on validation of test systems for GMT off-axis segments, based on re-measurement of GMT Segment 1 in 2017. Report demonstrates that all measurements meet requirements for agreement with acceptance measurements in 2012, and with one another.