Dr. Selfridge is currently a professor in the Electrical and Computer Engineering Department at Brigham Young University. From 1983 through 1987 Dr. Selfridge was a member of the faculty in the Department of Electrical and Computer Engineering at California State University in Sacramento.  He has taught a wide variety of courses including classes in ircuits, electronics, electromagnetics, optics, and solid state devices. He has focused his research on the creation of optical devices within an optical fiber. He along with students and collaborators has developed a novel technique for removing a portion of the core of a D-type optical fiber and replacing it with an optically active material. In addition, Dr. Selfridge’s group has developed techniques to create surface relief gratings on the flat surface of D-fibers to form fiber input/output couplers and Bragg gratings within the fiber environment.Dr. Richard Selfridge received the following degrees B.S. of Physics, 1978, from California State University, Sacramento,  MS in Electrical Engineering, 1980, from University of California, Davis, and Ph.D in Electrical Engineering, 1984, from University of California, Davis. He is senior member of the IEEE and a member of SPIE. He currently serves as the chapter adviser for the Society of Professional Hispanic Engineers. 

Dr. Richard Selfridge joined the ECEn Department in 1987. His research has focused on in-fiber optical devices including fiber Bragg gratings (FBG’s), modulators, and sensors. In addition, he has begun a program to develop new techniques for demodulating optical signals from FBG’s that retain not only peak data, but display the entire substructure of the FBG response.

Journal Publications

1. Richard Selfridge and Andrew Dienes, "Synchronously pumped double mode-locking of a Rhodamine 6G - cresyl violet mixture."  Applied Physics B, vol. 37, pp. 7-9, 1985.

2. Richard Selfridge and Andrew Dienes, "Variable repetition rate short pulses from a passively mode-locked laser." Applied Optics, vol. 24, p. 1724, 1985.

3. S.T. Kowel, R.H. Selfridge, C. Eldering, N. Matloff, P. Stroeve, B. Higgins, M.P. Srinivasan, and L.B. Coleman.  "Future applications of ordered polymeric thin films." Thin Solid Films, vol. 152, p. 377, 1987.

 4. R.H. Selfridge, S.T. Kowel, P. Stroeve, J.Y.S. Lam, B.G. Higgins. "Optical fibers coated with nonlinear Langmuir/Blodgett thin films."  Thin Solid Films, vol. 160, p. 471, 1988.

5.  M.A. Jensen, and R.H. Selfridge, "Analysis of etching induced birefringence changes in elliptic core fibers."  Applied Optics, vol. 31, no. 12, pp. 211-216, 1992.

6.  M.A. Jensen and R.H. Selfridge, "Analysis of diffraction gratings based on D-shape fibers."  J. Opt. Soc. Amer. A, vol. 9, no. 7, pp. 1086-1090, 1992.

7. J.D. Freeze and R.H. Selfridge, "D-fiber holographic diffraction gratings,” Optical Engineering, Vol. 32, No. 12, pp. 3267-3271, 1993.

8.  T.A. Pitts, R.H. Selfridge, and D.M. Chabries, "Solution of the Euler field equations for plane-wave scattering by an end-capped cylinder via the uniform geometrical theory of diffraction,” Journal of the Acoustical Society of America, vol. 94., N=no. 6, pp. 3437-3447, 1993.

9.       K. Warnick, R. Selfridge, and D. Arnold, " Electromagnetic boundary conditions and differential forms, IEE Proceedings of Microwave, Antennas, and Propagation, vol.142, No.4, pp. 326-332, August 1995.

10. K. Warnick, R. Selfridge, and D. Arnold, "Teaching engineering electromagnetics using differential   forms,” IEEE Transactions on Education, vol. 40, no. 1, pp. 53-68, 3 June 1997.

11.  J.D. Freeze, M.A. Jensen, and R.H. Selfridge, “A unified Green’s function analysis of complicated DFB lasers,” IEE J. Quantum Electron., vol. 33, pp. 1253-1259, Aug. 1997.

12. M.A. Jensen, R. H. Selfridge, and K.F. Warnick, “System level microwave design projects,” IEEE Antennas Propagation Magazine, vol. 43, pp. 138-142, Oct. 2001.

13. Harb, J.N., LaFollette, R.M., Selfridge, R.H., and Howell, L.L., “Microbatteries for Self-Sustained Hybrid Micropower Supplies,” Journal of Power Sources, vol 104, no. 1, pp. 46-51, 2002.

14. T. Gomm, L.L. Howell, and R.H. Selfridge, “In-plane Linear-Displacement Bistable Microrelay,” Journal of Micromechanics and Microengineering, vol. 12, no. 3, pp. 257-264, 2002.

15. Douglas J. Markos, Benjamin L. Ipson, Kevin H. Smith, Stephen M. Schultz, Richard H. Selfridge, Thomas D. Monte, Richard B. Dyott, and Gregory Miller, “Controlled core removal from a D-shaped optical fiber,” Appl. Opt., vol. 42, pp. 7121-7125, Dec. 2003.

16. K.H. Smith, D.J. Markos, B.L. Ipson, S.M. Schultz, R.H. Selfridge, J.P.  Barber, K.J. Campbell, T.D. Monte, and R.B. Dyott, “ Fabricationand analysis of a low-loss in-fiber active polymer waveguide,” Applied Optics, vol. 43, no. 4, pp. 933-939, Feb 2004.

17. Daniel M. Bennett, Richard H. Selfridge, John N. Harb, and Donald T. Comer, "A Control Circuit for a Microsensor Hybrid Power Supply, IEEE Transactions on Industrial Electronics, vol. 51, no1, pp. 74-80, February 2004.

18. Kevin H. Smith, Richard H. Selfridge, Stephen M. Schultz, Douglas J. Markos, and Benjamin L. Ipson, “Analysis of replacing an optical fiber core with polymer,” Optics Express, vol. 12, pp. 354-360, Feb. 2004.

19. Kevin H. Smith, Benjamin L. Ipson, Richard H. Selfridge, and Stephen M. Schultz, “Versatile in-fiber sensing using core-replaced D-fiber,” Applied Optics, Vol. 44, no. 1, pp. 22-26, January 2005.

20.  T.L. Lowder, K.H. Smith, B.L. Ipson, A. R. Hawkins, R. H. Selfridge, and S. M. Schultz, “High-Temperature sensing using surface relief  fiber Bragg gratings, IEEE Photonics Technology Letters, Vol. 17, no. 9, pp. 1926-1931, September, 2005.

21.  K.H. Smith,  B.L. Ipson, T.L. Lowder, A. R. Hawkins, R. H. Selfridge, and S. M. Schultz, “Surface relief fiber Bragg gratings for sensor applications”, Applied Optics, Vol. 45, No. 8, pp1669-1775, March 2006.

22.  R. Gibson, J. Kvavle, R. Selfridge, and S. Schultz, "Improved sensing performance of D-fiber/planar waveguide couplers," Opt. Express 15, 2139-2144 (2007)
http://www.opticsinfobase.org/abstract.cfm?URI=oe-15-5-2139

23.  Tyson L. Lowder, Brian R. Tebbs, Richard H. Selfridge, Stephen M. Schultz, “Polarization analysis of surface relief D-fiber Bragg gratings,” Appl. Opt., vol. 46, pp. 2387-2393, May 2007.

24.  Seth W. Lloyd, Jason A. Newman, Daniel R. Wilding, Richard H. Selfridge, and Stephen M. Schultz, “A fiber sensor integrated monitor for embedded instrumentation systems,” Rev.     of Sci Instrum., vol. 78, pp. 351-358, Apr. 2007.

25.  R. H. Selfridge, S. M. Schultz, and A. R. Hawkins, “Free-space optical link as a model undergraduate design project,” IEEE Trans. Educ., vol. 50, p. 208-215, Aug. 2007.

26.   T. L. Lowder, J. D. Gordon, S. M. Schultz, and R. H. Selfridge, "Volatile organic compound sensing using a surface-relief D-shaped fiber Bragg grating and a polydimethylsiloxane layer," Opt. Lett., vol. 32, p. 2523-2525, Sep. 2007.

27.  T. L. Lowder, R. H. Selfridge, and S. M. Schultz, “Surface relief D-fiber Bragg gratings for high-temperature and multidimensional bend sensing,” Materials Evaluation, vol. 65, pp.       1042-1047, Oct. 2007.

28. E. K. Johnson, J. M. Kvavle, R. H. Selfridge, S. M. Schultz, R. Forber, W. Wang, and D. Y. Zang, “Electric field sensing with a hybrid polymer/glass fiber,” Appl. Opt., vol. 46, p. 6953-6958, Oct. 2007.

29.  J. D. Gordon, T. L. Lowder, R. H. Selfridge, and S. M. Schultz, “Optical D-Fiber based volatile organic compound sensor,” Appl. Opt., vol. 46, p. 7805-7810, Nov. 2007.

30.      R. Gibson, R. Selfridge, S. Schultz, W. Wang, and R. Forber, “Electro-optic sensor from high Q resonance between optical D-fiber and slab waveguide,” Appl. Opt., vol. 47, No. 13, p. 2234-2240, May 2008.

31.      T. L. Lowder, J. A. Newman, W. M. Kunzler, J. D. Young, R. H. Selfridge, and S. M. Schultz, “Temporal response of surface-relief fiber Bragg gratings to high temperature CO2 laser heating,” Appl. Opt., vol. 47, No. 20, 3568-3573, Jul. 2008.

32.      J. Kvavle, S. S. Schultz, and R. H. Selfridge, “Low loss elliptical core D-fiber to PANDA fiber fusion splicing,” Opt. Expr., Vol. 16, No. 18, pp. 13552-13559, Aug. 2008.

Conference presentations and proceedings

1.  S. T. Kowel, L. M. Hayden, and R. H. Selfridge.  "Second order optical effects in multilayer polymeric thin films."  Proceedings of SPIE, vol. 682, p. 103, 1986.

2.  R.H. Selfridge, T.K. Moon, P. Stroeve, J.Y.S. Lam, S.T. Kowel, and A. Knoesen,  "SHG in Langmuir/Blodgett nonlinear film coated fibers."  Proceedings of SPIE, Vol. 971, p. 197, 1988.

3.  R.H. Selfridge,  G. T. Pugmire, and M. Curtis, "In-situ monitoring of D-type fiber etching."  Proceedings of SPIE, vol. 1168, p. 314, 1989.

4.  R.H. Selfridge, J. D. Freeze, and J. Curtis, "A new method for producing diffraction gratings in optical fibers."  Proceedings of SPIE, Vol. 1168, p. 323, 1989.

5.  C.Y. Chen, S. Divita, A. Wey, and R.H. Selfridge,  "Diffraction gratings on D-shaped fibers for coupling." DOD Fiber Optics Conference, Washington D.C., 1990.

6.  G.T. Pugmire, J.D. Freeze, M.A. Jensen, and R.H. Selfridge,  "Controlled etching to produce D-fiber diffraction grating devices."  in Technical Digest, CLEO (Optical Society of America, Anaheim California) paper CFB4, 1990.

7. G.T. Pugmire, M.A. Jensen, and R.H. Selfridge,  "Controllable cladding removal for in-fiber integrated optics applications."  Proceedings of SPIE, vol. 1338, pp. 2-10, 1990.

8.  J.D. Freeze, M.A. Jensen, and R.H. Selfridge, "High efficiency diffraction gratings in D-type fibers."Optical Fiber Communication Conference Technical Digest, vol. 4, p. 46, 1991.

9.  J.D. Freeze and R.H. Selfridge, "Distributed feedback D fiber dye laser." Proceedings of SPIE, vol. 1751, pp. 331-342, 1992.

10. J. D. Freeze and R.H. Selfridge, "Gain modeling for in-fiber distributed feedback lasers using recursive Green’s functions,” Proceedings of SPIE, vol. 2289, pp. 2-9, San Diego, July 1994.

11.  S.M. Schultz, L. Harris, and R.H. Selfridge, "Two step input coupler,” Proceedings of SPIE, vol. 2290, pp. 98-104, San Diego, July 1994.

12.  D.V. Arnold, R.H. Selfridge, and K.F. Warnick, “Teaching electrodynamics using differential forms,” Progress in Electromagnetics Research Symposium, p. 939, Seattle, Washington, July 1995.

13.  R.H. Selfridge, K.F. Warnick, and D.V. Arnold, Teaching electrostatics and magnetostatics using differential forms, Progress in Electromagnetics Research Symposium, p.940, Seattle, Washington, July 1995.

14.  K.F. Warnick, D.V. Arnold, and R.H. Selfridge, “Electromagnetic Green functions using differential forms,” Progress in Electromagnetics Research Symposium, p. 943, Seattle, Washington, July 1995.

15.  K.F. Warnick, D.V. Arnold, and R.H. Selfridge, “Electromagnetic Boundary Conditions Using Differential Forms,” Progress in Electromagnetics Research Symposium, p. 1106, Seattle, Washington, July 1995.

16.  R.H. Selfridge, D.V. Arnold and K.F. Warnick, “Enhancing the teaching of Electromagnetics using differential forms,” Annual Conference Proceedings of the ASEE, Washington, D.C., June, 1996.

17.  K.F. Warnick, D.V. Arnold, and R.H. Selfridge, “Differential forms in electromagnetic field theory,” Proceedings of IEEE Antenna Propagation Symposium, pp. 1474-1477, Baltimore, Maryland, July, 1996.

18.  K.F. Warnick, D.V. Arnold, and R.H. Selfridge, “Electromagnetics made easy: differential forms as a teaching tool,” Proceedings of Frontiers in Education, Salt Lake City, UT, Nov. 1996.

19.  D.V. Arnold, K.F. Warnick, and R.H. Selfridge, “Differential forms as a tool for electromagnetic field theory,” Procedings of the progress in Electromagnetics Research symposium, pg. 446, Boston, Massachusetts, July 1997.

20.  M.A. Jensen and R.H. Selfridge, “A Green’s Function Approach for Modeling Semiconductor Lasers and Optical Waveguides.” USNC/URSI Radio Science Meeting Digest, pg. 153, Atlanta, GA. 1998.

21.  R.H. Selfridge, M.A. Jensen, C.A. Fox, G.C. Harston, R.E. Wilson, Integrated Optics Based on an Optical Fiber Embedded in a Silicon Wafer, IEEE Lasers and Electro-Optics Society Annual Meeting, WM2, 1999.

22.  R.H. Selfridge, D.V. Arnold, Teaching Electromagnetic Theory Using Simple Differential Forms, PIERS 2000, p 434, July, 2000. 

23. D.M. Bennett, J.N. Harb, R.H. Selfridge, P.H. Humble, “Hybrid Power Systems for Autonomous MEMS,” Proceedings of SPIE, vol. 4334, p. 354, 2001.

24. M.S. Smith, R.H. Selfridge, G.M. Kraus, R.B. Dyott, T. Monte, G. Miller, The D-shaped optical fiber as a platform for integrated photonic devices,” Proceedings of the International Wire and Cable Symposium, pp. 470-476, 2001.

25. J.N. Harb, P.H. Humble, R.H. Selfridge, L.L. Howell, Presentation at AIChE on micropower, Summer 2001.

26. K.J. Campbell, K.H. Smith, D.J. Markos, B.L. Ipson, S.M. Schultz, and R.H. Selfridge, “Fabrication of Structures onto the Flat Surface of a D-Shaped Optical Fiber,” OSA Annual Meeting, Oct. 2003.

27. K.H. Smith, B.L. Ipson, D.J. Markos, K.J. Campbell, S.M. Schultz, and R.H. Selfridge, "Fabrication and Analysis of an In-fiber Polymer Waveguide," OSA Annual Meeting, Oct. 2003.

28.  R.H. Selfridge, K.H. Smith, B.L. Ipson,  and S.M. Schultz, Enhanced temperature sensing using in-fiber polymer waveguides, SPIE Proceedings, vol. 5391, pp. 286-292, San Diego, Mar. 2004.

29. K.H. Smith, R.H. Selfridge, B.L. Ipson, and S.M. Schultz, Core-replaced D-fiber sensors for structural health monitoring, AeroMat Conference, Seattle, June 2004.

30. K. Price, Stephen Schultz, Richard Selfridge, “D-fiber Bragg gratings for sensors,” JCIS Conference, Jul. 2005.

31. K. H. Smith, B. L. Ipson, T. L. Lowder, A. R. Hawkins, R. H. Selfridge, S. M. Schultz, “Etched in-fiber gratings for temperature sensing at high temperatures,” Proc. SPIE, vol. 5758, pp. 28-37, Mar. 2005.

32.      T. L. Lowder, K. H. Smith, B. L. Ipson, A. R. Hawkins, R. H. Selfridge, and S. M. Schultz, “Surface Relief Fiber Bragg Gratings with Application to High Temperature Sensing,” OSA Annual Meeting, Tucson, AZ, Oct. 2005.

33. S. W. Lloyd, J. Newman, E. Parsons, R. H. Selfridge, S. M. Schultz, “A fiber sensor integrated monitor for embedded instrumentation systems,” Proc. SPIE 6167, Feb. 2006.

34. T. L. Lowder, R. S. Gibson, K. H. Smith, R. H. Selfridge, S. M. Schultz, “Unique characteristics of surface relief fiber Bragg gratings and their application to multiaxis sensing,” Proc. SPIE, vol. 6167, Feb. 2006.

35. R. H. Selfridge, S. M. Schultz, T. L. Lowder, A. Mendez, V. P. Wnuk, S. Ferguson, T. W. Graver, “Packaging of surface relief fiber Bragg gratings for use as strain sensors at high-temperature,” Proc. SPIE, vol. 6167, Feb. 2006.

36. W. C. Wang, H. Lotem, D. Zang, R. Forber, S. M. Schultz, R. H. Selfridge, “Dielectric ultra-wideband optical E-field sensors,” Proc. SPIE, vol. 6219, Apr. 2006.

37. S. Schultz and R. Selfridge, “An optical fiber sensor integrated monitor (FSIM),” Proc. ITEA Annual Technology Review, Cambridge, MA, Aug. 2006.

38. R. Forber, W. Wang, D.-Y. Zang, S. Schultz, and R. Selfridge, “Dielectric EM field probes for HPM test & evaluation,” Proc. ITEA Annual Technology Review, Cambridge, MA, Aug. 2006.

39. J. Newman, S. Schultz, R. Selfridge, “A fiber sensor integrated monitor for embedded instrumentation systems,” Proc. Intern. Telem. Conf., San Diego, Oct. 2006.

40. T. Lowder, B. Tebbs, S. Schultz, and R. Selfridge, “Multi-axis bend sensing using a single surface relief fiber Bragg grating,” Optical Fiber Sensors Conference, Cancun, Mexico, Oct. 2006.

41. E. Johnson, R. Selfridge, and S. Schultz, “Electric field sensor based on core-replaced optical D-fiber,” Proc. SPIE, vol. 6525, Mar. 2007.

42.      J. Gordon, S. Schultz, and R. Selfridge, “In-situ monitoring of volatile organic compounds using a single-mode D-fiber and polydimethylsiloxane-evanescent field interaction,” Proc. SPIE, vol. 6525, Mar. 2007.

43. W. Kunzler, J. Newman, D. Wilding, R.H. Selfridge, S.M. Schultz, M. Wirthlin, and A.  Rodriguez, Miniature UAV Telemetry using a portable integrated FOS system," Proc. SPIE, vol. 6530, pp. O5:1-10, Mar. 2007.

44. W. Kunzler, J. Newman, D. Wilding, Z. Zixu, T. Lowder, R. Selfridge, and S. Schultz, “Advanced FBG sensing through rapid spectral interrogation,” Proc. SPIE, vol. 6933, 69330D, Mar. 2008.

45.      J. D. Young, T. L. Lowder, R. H. Selfridge, and S. M. Schultz, “Packaging of surface relief fiber Bragg gratings for harsh high temperature environments,” Proc. SPIE, vol. 6933, p. 693308, Mar. 2008.

46.      W. Kunzler, Z. Zhu, R. Selfridge, S. Schultz, M. Wirthlin, “Integrating fiber Bragg grating sensors with sensor networks,” Proc. IEEE AUTOTESTCON, p. 354 – 359, Sep. 2008.

47.     R. Gibson, R. Selfridge, S. Schultz, “Electro-optic sensor from high-Q resonance between optical D-fiber and slab waveguide,” Proc. CLEO, p. 1-2, May 2008.

During his career Dr. Selfridge has advised more that 20 MS degree students and two Ph.Ds students. He currently serves as a co-advisor for two Ph.D. students and one MS student.