Dr. Patrick Reardon

Director, CAO


301 Sparkman Drive
Optics Building
Room 400P
Huntsville, AL 35899
Campus Map



Dr. Patrick J. Reardon received his B.S. in Physics from DePaul University (1986), then his M.S. and Ph.D. in Physics from UAH (1990 and 1993, respectively) performing research in optical design techniques for analogue optical computing. He was the Chief Optical Systems Designer at Teledyne Brown Engineering for three years. While there, he worked on analogue optical computing, diffractive and micro-optics technology, IR seekers, IR zoom systems, and an optical system for a space borne protein crystal growth experiment. As a consultant, he designed novel intraocular lenses and developed metrology systems for testing them. He briefly joined Johnson & Johnson in Roanoke, VA, as the Manager of Optical Design in their Progressive Addition Spectacle Lens team. Then he joined the Center for Applied Optics where his work spans the fields of polarimeter calibration, space based optics, large optics metrology, eye oximetry, HEL systems, turbulence measurement, ophthalmic optics and optical systems design and analysis.

Dr. Reardon teaches the graduate course “Lens Design,” has taught the graduate and undergraduate “Fiber Optics Communications” class, taught the graduate-level class "Fourier Optics," and created and taught a graduate-level Advanced Lens Design class. He has also taught the Senior Design 2-semester series for the OPE students. He has advised 6 PhD and 6 MS students through their defense, has served on multiple PhD and MS committees and has mentored 7 Senior Design projects.

His interests include optical design and optical systems design, metrology, and advanced wavefront sensor design for adaptive optics, polarization, orbital angular momentum and performance of annular segmented optical systems. He is proficient in the Code V and Zemax optical design and analysis codes, and the ASAP optical analysis code.

He has eight patents and over 70 publications.


  • Ph.D., Physics, The University of Alabama in Huntsville (UAH), 1993
  • M.S., Physics, UAH, 1990
  • B.S., Physics, DePaul University, 1986
  • Optomechanical Design, OSE 670, UAHuntsville, Spring 2009
  • Introduction to ASAP, Tucson, AZ, Mar. 22-26, 2004 and Feb. 22-26, 1999
  • Applying AutoCAD, A.I.D.T., Madison, AL., March 5 to April 4, 1996
  • Fundamental Concepts of Nonlinear Optics, SPIE Short Course, Huntsville, AL., May 14, 1990
  • Laser Radar, SPIE Short Course, Huntsville, AL., May 14, 1990
  • Advanced Topics in Code V, Optical Research Associates, Pasadena, CA., March 5-8, 1990


  • US10359603B1, 07/23/19, “Lightweight Adaptive Metal Cooled Mirrors,” Reardon, P.J.
  • US9804251B1, 10/31/17, “Fiber optic directional sensor with wide-field optical field expanding element and method,” Reardon, P.J.
  • US9628682B2, 4/18/17, “High-resolution hyper-spectral orthographic imaging spectrometer,” Pollock, D.B., Reardon, P.J.,
  • US9182228B2, 11/10/15, “Multi-Lens Array System and Method,”, Pollock, D.B., Reardon, P.J., Rogers, T.E., Underwood, C.N., Egnal, G., Pitalo, S.K.,
  • US8950102, 2/10/15, “Scope Correction Apparatuses and Methods,” Reardon, P.J., Rogers, T.E., Underwood, C.N., Ferris, B.
  • US06392813, 5/21/2002, “Integrated Molded Plastic Optical System for a Laser Diode Collimating and Aberration Correction Configuration,” Reardon, P.J., Fileger, P.E., Peters, B.R., Patterson, T.A.
  • US06183084, 2/6/2001, “Progressive Addition Lenses,” Chipman, R.A., Reardon, P.J.
  • US06000798, 12/14/1999, “Ophthalmic Optic Devices,” Chipman, R.A, Reardon, P.J, Gupta, A.
  • 2015 NASA/MSFC Summer Faculty Fellowship, June 6 – August 14, 2015.
  • 1995 Harry J. Watson Engineer/Scientist of the Year at Teledyne Brown Engineering


  • Optical Design
  • Optical Systems Design
  • Metrology
  • Advanced Wavefront Sensor Design for Adaptive Optics, Polarization, Orbital Angular Momentum and Performance of Annular Segmented Optical Systems

Recent Publications

  • “Carrier frequency stabilization of a SiN ring resonator with a spatial interferometer” Mefford, D.K., Reardon, P.J., Submitted to Continuum, 12/2020.

  • “Towards a stabilized Kerr optical frequency comb with spatial interference,” Mefford, D.K., Reardon, P.J., Appl Opt, Vol. 59, Issue 26, p.7930, (2020)

  • “The POEMMA (Probe of Extreme Multi-Messenger Astrophysics) Observatory,” A. V. Olinto, J. Krizmanic, J. H. Adams, R. Aloisio, L. A. Anchordoqui, M. Bagheri, D. Barghini, M. Battisti, D. R. Bergman, M. E. Bertaina, P. F. Bertone, F. Bisconti, M. Bustamante,12 M.Casolino, K. Cerný, M. J. Christl,A. L. Cummings, I. De Mitri, R. Diesing, R. Engel, J. Eser, K. Fang, G. Filippatos, F. Fenu, E. Gazda, C. Guepin, A. Haungs, E. A. Hays, E. G. Judd, P. Klimov, V. Kungel, E. Kuznetsov, Š. Mackovjak, D. Mandát L. Marcelli, J. McEnery, G. Medina-Tanco, K.-D. Merenda, S. S. Meyer, J. W. Mitchell, H. Miyamoto, J. M. Nachtman, A. Neronov, F. Oikonomou, Y. Onel, A. N. Otte, E. Parizot, T. Paul, J. S. Perkins, M. Pech, P. Picozza, L.W. Piotrowski, Z. Plebaniak, G. Prévôt, P. Reardon, M. H. Reno, M. Ricci, O. Romero Matamala, F. Sarazin, K. Shinozaki, J. F. Soriano, F. Stecker, P. Schovánek Y. Takizawa, R. Ulrich M. Unger, T. M. Venters, L. Wiencke, D. Winn, R. M. Young, M. Zotov, Submitted to Journal of Cosmology and Astroparticle Physics (JCAP), 12/2020.

  • “Modeling interferometric measurement error of small radius parts with a phase-shifting Fizeau using the yybar diagram,” R. Alsalamah, P.J. Reardon, Opt. Eng., (In Review), (2020)

  • “Entrance pupil masks for enhancing moiré-based distance/motion sensing,” Bergstue, G., Reardon, P.J., Appl. Opt. 59, 4332-4338 (2020) .

  • “Simplified Physical Model of Interferometric Radius of Curvature Test using the yybar diagram,” R. Alsalamah, P.J. Reardon, Opt. Eng., 58(9), 095104 (2019).

  • “Passive range finder based on moiré images of Ronchi-like gratings with bilateral asymmetry,” Bergstue, G., Reardon, P.J., Appl. Opt. 58, 4431-4437 (2019).

  • “Characterization and preliminary results of a differential image motion monitor for atmospheric turbulence measurements,” Whitley, D., Reardon, P.J., Patty, K., Hazen, J., Edwards, K., Directed Energy Professional Society, Journal of Directed Energy. (2016).

  • “Fiber reference misalignment induced error in cylindrical wave interferometry,” Alatawi, A., Reardon. P.J., Liu, F., Optics Express, 23(12), pp. 15406-15417, (6/3/2015)