Publications

Journal Papers:

  1. Graves, H. Quach, R. Koshel, C. Oh, and D. Kim, “High contrast thermal deflectometry using long-wave infrared time modulated integrating cavity source,” Opt. Exp. 27, 28660-28678 (2019).
  2. Ross D. Uthoff, Rachel N. Ulanch, Kaitlyn E. Williams, Liliana Ruiz Diaz, Page King, R. John Koshel, “Designing a freeform optic for oblique illumination“, in International Optical Design Conference 2017, Richard N. Pfisterer; John R. Rogers; Julius A. Muschaweck; Peter P. Clark, Editors, Proceedings of SPIE Vol. 10590 (SPIE, Bellingham, WA 2017), 105900X.
  3. Janos C. Keresztes, R. John Koshel, Karlien D’huys, Bart De Ketelaere, Jan Audenaert, Peter Goos, and Wouter Saeys, “Augmented design and analysis of computer experiments: a novel tolerance embedded global optimization approach applied to SWIR hyperspectral illumination design,” Opt. Exp. 24, 29380-29405 (2016).
  4. Yi Chin Fang, Chao-Wen Liang, John Koshel, Jose Sasian, Toyohiko Yatagai, Yongtian Wang, and James M. Zavislan, “Optical design and testing: introduction,” Appl. Opt. 54, ODT1-ODT2 (2015).
  5. Chao-Wen Liang, John Koshel, Jose Sasian, Robert Breault, Yongtian Wang, and Yi Chin Fang, “Optical design and testing: introduction,” Appl. Opt. 53, ODT1-ODT4 (2014).
  6. J. Koshel, C. Seassal, O. Deparis, and R. S. Santosh Kumar, “Focus issue introduction: renewable energy and the environment,” Opt. Exp. 22, A561-A563 (2014).
  7. Seassal and R. J. Koshel, “Focus issue introduction: renewable energy and the environment,” Opt. Exp.21, S3, A430-A432 (2013).
  8. J. Kim and R. J. Koshel, “Modeling transflective LCD illumination systems,” Proceedings of SPIE Vol. 7652, 76521G (2010).
  9. Yang, Y Yang, Y. Liu, J. Sasian, and R. J. Koshel, “Efficient ray-tracing for free-form reflectors,” Optik 120, 40 (2007).
  10. J. Koshel, “Optimization of parameterized lightpipes,” published in SPIE Proc. of the Intl. Opt. Des. Conf. 2006 6342, 63420P (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2006).
  11. J. Smith, E. Betensky, D. Williamson, J. C. Miñano, and R. J. Koshel, “The past, present, and future of optical design,” published in SPIE Proc. of the Intl. Opt. Des. Conf. 2006 6342, 63422Y (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2006).
  12. J. Koshel, “Simplex optimization method for illumination system design,” Opt. Lett. 30, 649 (2005).
  13. J. Koshel and I. A. Walmsley, “Non-edge ray design: improved optical pumping of lasers,” Opt. Eng. 43, 1511 (2004).
  14. J. Koshel, “Illumination engineering,” Opt. Eng. 43, 1478 (2004).
  15. J. Koshel, “Enhancement of the downhill Simplex method of optimization,” SPIE Proc. of the Intl. Opt. Des. Conf. 2002 4832, 270 (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2002).
  16. Gupta, J. Lee, and R. J. Koshel, “Design of efficient lightpipes for illumination using an analytical approach,” Appl. Opt. 40, 3640 (2001).
  17. J. Koshel and I. A. Walmsley, “Optimal Design of Optically Side-Pumped Lasers,” IEEE Jnl. of Quantum Electron. 33, 94 (1997).
  18. J. Koshel, I. A. Walmsley, R. Utano, and D. Caffey, “Diode side pumping of a Nd:YAG laser rod with nonimaging optics,” OSA Proceedings of the International Optical Design Conference (Optical Society of America, Washington, D. C., 1994) p. 304.
  19. J. Koshel and I. A. Walmsley, “Modeling of the gain distribution for diode pumping of a solid-state laser rod with nonimaging optics,” Appl. Opt. 32, 1517 (1993).
  20. M. Hayhoe, M. E. Levin, and R. J. Koshel, “Subtractive processes in light adaptation,” Vis. Res. 32, 323 (1992).
  21. G. Blough, et. al., “Effects of axial and radial gradients on Cooke Triplets,” Appl. Opt. 29, 4008 (1990).

Books:

  1. J. Koshel, editor, Illumination Engineering: Design with Nonimaging Optics, author of three chapters (IEEE-Wiley, New York, NY, 2013).
  2. V. Arecchi, T. Messadi, and R. J. Koshel, Field Guide to Illumination (SPIE Press, Bellingham, WA, 2007). Second edition scheduled to be published in 2014.

Book Chapters:

  1. Gupta and R. J. Koshel, “Lighting and Applications,” Handbook of Optics Volume II (McGraw-Hill, New York, NY, 2009).

Other Papers:

  1. Jacob Boyer, Janos C. Keresztes, Wouter Saeys, R. John Koshel, “An automated imaging BRDF polarimeter for fruit quality inspection“, in Novel Optical Systems Design and Optimization XIX, Arthur J. Davis; Cornelius F. Hahlweg; Joseph R. Mulley, Editors, Proceedings of SPIE Vol. 9948 (SPIE, Bellingham, WA 2016), 99481G.
  2. Janos C. Keresztes, R. John Koshel, Russell A. Chipman, John C. Stover, Wouter Saeys, “A cross-polarized freeform illumination design for glare reduction in fruit quality inspection“, in Optical Systems Design 2015: Illumination Optics IV, Tina E. Kidger; Stuart David, Editors, Proceedings of SPIE Vol. 9629 (SPIE, Bellingham, WA 2015), 962904.
  3. Janos C. Keresztes, Bart De Ketelaere, Jan Audenaert, R. John Koshel, Wouter Saeys, “Illumination system development using design and analysis of computer experiments“, in Novel Optical Systems Design and Optimization XVIII, G. Groot Gregory; Arthur J. Davis; Cornelius F. Hahlweg, Editors, Proceedings of SPIE Vol. 9579 (SPIE, Bellingham, WA 2015), 95790I.
  4. Janos C. Keresztes, Ben Aernouts, R. John Koshel, Wouter Saeys, “Dynamic noise corrected hyperspectral radiometric calibration in the SWIR range using a supercontinuum laser“, in Novel Optical Systems Design and Optimization XVIII, G. Groot Gregory; Arthur J. Davis; Cornelius F. Hahlweg, Editors, Proceedings of SPIE Vol. 9579 (SPIE, Bellingham, WA 2015), 95790A.
  5. J. Koshel and S. Mulder, “Toleranced freeform optical design with extended sources using ray targeting,” Proceedings of SPIE Vol. 8842, 88420L (2013).
  6. G. Gregory, I. E. Ashdown, W. Brandenburg, et al., “Data format standard for sharing light source measurements,” Proceedings of SPIE Vol. 8835, 88350D (2013).
  7. J. Koshel, V. Abraham, J. Kim, et al., “Illumination system design in a project-based course,” Proceedings of SPIE Vol. 7423, 742305 (2009).
  8. Wang, J. M. Sasián, P. Su, et al., “Generation of uniform illumination using faceted reflectors,” Proceedings of SPIE Vol. 7423, 74230Y (2009).
  9. J. Koshel, “SSL design with LED binning tolerances,” SPIE Proc. of Illumination Optics 7103, 710303 (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2008).
  10. J. Koshel, “Fractional optimization of illumination optics,” SPIE Proc. of Novel Optical Systems Design and Optimization XI 7061, 70610F (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2008).
  11. J. Koshel, “Software conquers design and analysis of backlit LCDs,” Las. Foc. World (October 2007).
  12. J. Koshel, “Illumination system tolerancing,” SPIE Proc. of Optical System Alignment and Tolerancing I 6676, 667604 (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2007).
  13. J. Koshel, “Why illumination engineering?” SPIE Proc. of Nonimaging Optics and Efficient Illumination Systems IV 6670, 667002 (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2007).
  14. J. Koshel, “A course in illumination engineering,” SPIE Proc. of Novel Optical Systems Design and Optimization X 6668, 66680F (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2007).
  15. Kano, R. J. Koshel, and A. F. Gmitro, “Broadband endoscopic imaging through a single fiberoptic channel,” SPIE Proc. of Novel Optical Systems Design and Optimization X 6668, 666806 (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2007).
  16. C. Kintner, W. K. Wong, E. S. Jacobs, P. J. Cucchiaro, and R. J. Koshel, “Efficient and versatile internal reference sources for remote sensing space telescopes,” SPIE Proc. of Infrared Spaceborne Remote Sensing XIV 6297, 62970FG (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2006).
  17. Groot Gregory and R. J. Koshel, “Modeling the operating conditions of solar concentrator systems,” SPIE Proc. of Photonics Europe 6197, 61970J (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2006).
  18. J. Koshel, C. Walker, and J, Briggs, “Education events at Frontiers in Optics 2005,” Opt. Phot. News 17, 16 (January 2006).
  19. Groot Gregory and R. J. Koshel, “Using software interoperability to achieve a virtual design environment,” SPIE Proc. of Optical Design and Engineering II 5962, 59620A (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2005).
  20. J. Koshel, “Lit-appearance modeling uses ray tracing and visualization,” Las. Foc. World, 71 (May 2005).
  21. J. Koshel and A. Gupta, “Characterization of lightpipes for efficient transfer of light,” SPIE Proc. of Nonimaging Optics and Efficient Illumination Systems II 5942, 594205 (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2005).
  22. J. Koshel, “Aspects of illumination system optimization,” SPIE Proc. of Nonimaging Optics and Efficient Illumination Systems I 5529, 206 (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2004).
  23. J. Koshel, “Optimal simplex optimization for optical design,” SPIE Proc. of Novel Optical Systems Design and Optimization VII 5524, 205 (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2004).
  24. S. Kaminski and R. J. Koshel, “Methods of tolerancing injection-molded parts for illumination systems,” SPIE Proc. of Efficient Illumination System Design 5186, 61 (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2003).
  25. J. Koshel, “Lit appearance modeling of illumination systems,” SPIE Proc. of Novel Optical Systems Design and Optimization V 4768, 65 (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2002).
  26. S. Kaminski, K. J. Garcia, M. A. Stevenson, M. Frate, and R. J. Koshel, “Advanced topics in source modeling,” SPIE Proc. of Source Modeling I 4775, 46 (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2002).
  27. A. Stevenson, M. S. Kaminski, M. Frate, and R. J. Koshel, “Modeling filament-based sources for system tolerancing,” SPIE Proc. of Source Modeling I 4775, 67 (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2002).
  28. Gupta, J. Lee, and R. J. Koshel, “Lightpipe Design,” Optics in 2001, Opt. and Phot. News 12, No. 12, 53 (2001).
  29. J. Koshel and E. R. Freniere, “Illumination: lighting our lives,” Introduction to Illumination Special Issue, Opt. and Phot. News 12, No. 8, (August 2001).
  30. Cassarly, D. Jenkins, A. Gupta, and R. J. Koshel, “Hidden devices that light our world: lightpipes,” Opt. and Phot. News 12, No. 8, 34 (August 2001).
  31. J. Koshel, “Intracavity beam shaping,” SPIE Proceedings of Laser Beam Shaping II 4443, 47 (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, August 2001).
  32. S. Upton and R. J. Koshel, “Modeling coherent propagation aids accurate coupling,” WDM Solutions, 73 (June 2001).
  33. J. Koshel, “Traffic lights must meet strict standards,” Laser Focus World (October 2000).
  34. J. Koshel, “Non-edge ray reflector design (NERD) for illumination systems,” SPIE Proceedings of Novel Optical Systems Designs and Optimization II 4092, 71 (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 2000).
  35. Shiefman and R. J. Koshel, “Modeling predicts WDM source performance,” WDM Solutions, 19 (February 2000).
  36. J. Koshel, “Tailored pump reflectors for lasers: a new conformal optics application,” Laser Focus World(July, 1999).
  37. J. Koshel, “Information Technology for Education,” Opt. and Phot. News 10, No. 4 (April 1999).
  38. Trebino and R. J. Koshel, “Encyclopedia Optica,” Opt. and Phot. News 10, No. 3 (March 1999).
  39. J. Koshel, “My First Year as a Professor,” Opt. and Phot. News 9, No. 10, 43 (Oct. 1998).
  40. J. Koshel, Guest Editor, “Optics Education: The Past Leading to the Future”, Opt. and Phot. News 9, No. 9, 17 (September 1998).
  41. J. Koshel, “Optics for the Fish II,” Opt. and Phot. News 9, No. 5, 63 (May 1998).
  42. J. Koshel, “Book Review: The Art and Science of Optical Design,” Opt. and Phot. News 9, No. 4, 54 (April 1998).
  43. J. Koshel, “Optics for the Fish I,” Opt. and Phot. News 9, No. 4, 50 (April 1998).
  44. J. Koshel, “Reach Out,” Opt. and Phot. News 9, No. 2, 73 (February 1998).
  45. J. Koshel, “Optics for the Fish,” Proceedings of the Forum on Education, OSA Annual Meeting 1997, Long Beach, CA (Optical Society of America, Washington, D. C., 1997).
  46. J. Koshel, “Career planning and education events at the annual meeting,” Opt. and Phot. News 8, No. 9, 53 (September 1997).
  47. J. Koshel, “Wiring the educational experience,” Opt. and Phot. News 8, No. 5, 64 (May 1997).
  48. J. Koshel, “Book Review: Geometrical Optics and Optical Design,” Opt. and Phot. News 8, No. 5, 66 (May 1997).
  49. J. Koshel, “Electronic Job Search,” Opt. and Phot. News 8, No. 4, 47 (April 1997).
  50. J. Koshel, “Book Review: Solid-State Laser Engineering, 4th Ed.,” Opt. and Phot. News 7, No. 7, 53 (1996).
  51. J. Koshel and I. A. Walmsley, “Modulating Light,” Opt. and Phot. News 7, No. 6, 54 (June 1996).
  52. J. Koshel, “Book Review: Laser Experiments for Beginners,” Opt. and Phot. News 6, No. 9 (September 1995).
  53. Koshel, “Future Shock: Controlling Your Career,” Opt. and Phot. News 6, No. 7, 51 (July 1995).
  54. J. Koshel, “Expansion of the Forum on Education,” Opt. and Phot. News 6, No. 4 (April 1995).
  55. A. Walmsley and R. J. Koshel, Manual For SeidelPlot (Optical Society of America; Washington, D. C., 1995).
  56. J. Koshel, “Optics Online in the Classroom,” Opt. and Phot. News 5, No. 4, 39 (April 1994).
  57. Wong, R. J. Koshel, M. Beck, and I. A. Walmsley, “Measurement of the amplitude and phase of pulses from passively mode-locked lasers,” SPIE Proceedings of OE/Lase 93: Ultrafast Pulse Generation and Spectroscopy 1861, 137 (Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, 1993).

PRESENTATIONS                                                                                                                                        

  1. J. Koshel and S. Mulder, “Toleranced freeform optical design with extended sources using ray targeting,” invited paper presented at SPIE Optics and Photonics, August 2013.
  2. G. Gregory, I. E. Ashdown, W. Brandenburg, et al., “Data format standard for sharing light source measurements,” presented at SPIE Optics and Photonics, August 2013.
  3. J. Kim and R. J. Koshel, “Modeling transflective LCD illumination systems,” presented at Int. Opt. Des. Conf., Jackson Hole, WY, June 2010.
  4. J. Koshel, “Perturbation design of illumination optics,” invited paper presented at Int. Opt. Des. Conf., Jackson Hole, WY, June 2010.
  5. J. Koshel, V. Abraham, J. Kim, et al., “Illumination system design in a project-based course,” presented at SPIE Optics and Photonics, August 2009.
  6. Wang, J. M. Sasián, P. Su, et al., “Generation of uniform illumination using faceted reflectors,” presented at SPIE Optics and Photonics, August 2009.
  7. J. Koshel, “What’s hot in the Fabrication, Design and Instrumentation: Design Events – Solar Technology: Design, Fabrication, and Testing,” invited paper, What’s Hot session at Frontier in Optics, San Jose, CA 2009.
  8. J. Koshel, “Accurate Lit-Appearance Modeling of Illumination Systems,” invited paper presented at OSA Frontiers in Optics, Rochester, New York, October 2008.
  9. J. Koshel, “SSL design with LED binning tolerances,” presented at SPIE European Optical System Design, Glasgow, United Kingdom, September 2008.
  10. J. Koshel, “Fractional optimization of illumination optics,” presented at SPIE Optics and Photonics, August 2008.
  11. J. Koshel, “Illumination system tolerancing,” presented at SPIE Optics and Photonics, San Diego, CA, August 2007.
  12. J. Koshel, “Why illumination engineering?” presented at SPIE Optics and Photonics, San Diego, CA, August 2007.
  13. J. Koshel, “A course in illumination engineering,” presented at SPIE Optics and Photonics, San Diego, CA, August 2007.
  14. Kano, R. J. Koshel, and A. F. Gmitro, “Broadband endoscopic imaging through a single fiberoptic channel,” presented at SPIE Optics and Photonics, San Diego, CA, August 2007.
  15. J. Koshel, “Optimization of parameterized lightpipes,” presented at Intl. Opt. Des. Conf. 2006, Vancouver, BC Canada, June 2006.
  16. Groot Gregory and R. J. Koshel, “Modeling the operating conditions of solar concentrator systems,” presented at Photonics Europe, Strasbourg, France, April 2006.
  17. J. Koshel, “The Nuances and Complexity of Illumination System Optimization,” invited paper presented at Frontiers in Optics/OSA Annual Meeting 2005, Tucson, AZ, October 2005.
  18. Groot Gregory and R. J. Koshel, “Using software interoperability to achieve a virtual design environment,” presented at Optical Systems Design, Jena, Germany, September 2005.
  19. J. Koshel and A. Gupta, “Characterization of Lightpipes for Efficient Transfer of Light,” presented at SPIE Annual Meeting 2005, San Diego, CA, July 2005.
  20. J. Koshel, “Aspects of illumination system optimization,” presented at SPIE Annual Meeting 2004, Denver, CO, August 2004.
  21. J. Koshel, “Optimal simplex optimization for optical design,” presented at SPIE Annual Meeting 2004, Denver, CO, August 2004.
  22. J. Koshel, “Optimization of Illumination Design,” invited talk presented at Frontiers in Optics/OSA Annual Meeting 2003, Tucson, AZ, October 2003.
  23. J. Koshel, “Methods of tolerancing injection-molded parts for illumination systems,” presented at SPIE Annual Meeting 2003, San Diego, CA, August 2003.
  24. J. Koshel, “Lit-appearance modeling of illumination systems,” presented at SPIE Annual Meeting, Seattle, WA, July 2002.
  25. J. Koshel, “Gain effects on laser beam shaping,” presented at SPIE Annual Meeting, Seattle, WA, July 2002.
  26. Stevenson, M. Kaminski, M. Frate, and R. J. Koshel, “Modeling filament-based sources for system tolerancing,” Invited talk presented at SPIE Annual Meeting, Seattle, WA, July 2002.
  27. Kaminski, K. Garcia, M. Stevenson, M. Frate, and R. J. Koshel, “Advanced topics in source modeling,” presented at SPIE Annual Meeting, Seattle, WA, July 2002.
  28. J. Koshel, “Enhancement of the downhill Simplex method of optimization,” presented at Intl. Opt. Des. Conf. 2002, Tucson, AZ, June 2002.
  29. J. Koshel, “Intracavity laser beam shaping,” Invited talk presented at the LIA ICALEO 2001, Orlando, FL (October 2001).
  30. J. Koshel, “Connection between technical and non-technical aspects of illumination,” Invited talk presented at the OSA Annual Meeting, Long Beach, CA (October 2001).
  31. J. Koshel, “Intracavity beam shaping,” presented at the SPIE Annual Meeting, San Diego, CA (August 2001).
  32. J. Koshel, “Non-edge ray reflector design (NERD) for illumination systems,” presented at the SPIE Annual Meeting, San Diego, CA, paper 4092-17 (2000).
  33. Gupta and R. J. Koshel, “Optimal design of a light pipe,” presented at the OSA Annual Meeting, Santa Clara, CA, paper TuTT5 (1999).
  34. J. Koshel, ” Improved control of the gain profile in an optically pumped laser via conformal optics,” presented at the Annual Meeting of the OSA, Baltimore, MD, paper MK3 (1998).
  35. J. Koshel, “Tailored emission from a diode-pumped, solid-state laser for lithography,” presented at the Annual Meeting of the OSA, Baltimore, MD, paper ThRR2 (1998).
  36. J. Koshel, “So you want to become a professor,” Invited talk at the Annual Meeting of the Optical Society of America, Long Beach, CA, paper ThRR2 (1997).
  37. J. Koshel and R. D. Jones, “Performance of a spatial-mode tunable Nd:YVO4laser,” Annual Meeting of the Optical Society of America, Long Beach, CA, paper WHH3 (1997).
  38. J. Koshel, B. Adolf, and R. D. Jones, “Laser beam characterization round robin,” Annual Meeting of the Optical Society of America, Long Beach, CA, paper WC4 (1997).
  39. J. Koshel, “Optics for the Fish,” Annual Meeting of the OSA, Long Beach, CA, paper ThO3 (1997).
  40. J. Koshel and I. A. Walmsley, “Toward optimal pump cavity design,” Annual Meeting of the Optical Society of America, Rochester, NY, paper MMM7 (1996).
  41. J. Koshel and I. A. Walmsley, “Optimal design of optically pumped lasers,” Annual Meeting of the Optical Society of America, Rochester, NY, paper WD9 (1996).
  42. J. Koshel and I. A. Walmsley, “Gain distribution effects on laser output power,” Annual Meeting of the Optical Society of America, Dallas, TX, paper FV5 (1994).
  43. J. Koshel. I. A. Walmsley, R. Utano, and D. Caffey, “Diode side pumping of a Nd:YAG laser rod with nonimaging optics,” International Optical Design Conference, Rochester, NY, paper IWC3 (1994).
  44. J. Koshel, “Diode side pumping of a Nd:YAG laser rod with nonimaging optics,” Spring Industrial Associates, The Institute of Optics, University of Rochester, Rochester, NY (1994).
  45. Wong, R. J. Koshel, M. Beck, and I. A. Walmsley, “Measurement of the amplitude and phase of pulses from passively mode-locked lasers,” presented at OE/Lase 93: Ultrafast Pulse Generation and Spectroscopy (1993).
  46. J. Koshel, M. Beck, and I. A. Walmsley, “Role of coherent interactions in pulse shaping in passively mode-locked lasers,” Annual Meeting of the OSA, Albuquerque, NM, paper FM5 (1992).
  47. J. Koshel and I. A. Walmsley, “Nonimaging optics for diode pumping of solid-state lasers,” Workshop on Diode Pumping Techniques, sponsored by Night Vision Laboratories, Ft. Belvoir, VA (1990).
  48. J. Koshel and I. A. Walmsley, “Diode pumping of solid-state lasers with nonimaging optics: a theoretical study,” Annual Meeting of the OSA, Boston, MA, paper TuVV6 (1990).

PATENTS                                                                                                                                                       

  1. High Performance UV Disinfection in a HVAC System with Integrated Concentrator Optics, S. Pau, L. Jiang, and R. J. Koshel, preliminary patent (2020).
  2. On-Chip CMOS Threshold Processing, E. Landsiedel and R. J. Koshel, preliminary patent (2019).
  3. White Light Interferometry Imager, E. Landsiedel and R. J. Koshel, preliminary patent (2019).
  4. Calibration technique for Smartphone Spectroradiometer, R. Ulanch and R. J. Koshel (2018).
  5. Micro-Scale Concentrated Photovoltaic Module, S. Pau, L. Jiang, and R. J. Koshel (2015).