Thin Film Design & Applications  


Jennifer D. Traylor Kruschwitz


Rochester Insitute of Technology, Rochester, New York,
Color Science, Ph.D. 2015.
Dissertation: Specialized Color Targets for Spectral Reconstruction of Magnified Images

University of Rochester, Rochester, New York,
Optics - B.S. 1989, M.S. 1995.

Consulting Experience (7/98 - present)

Bausch & Lomb - Eyewear Division
Documented coating standard operating procedures, created color measurement and inspection procedure for Revo color mirror coatings, increased overall coating manufacturing yields from 10% below standard to 5% above standard, trained and empowered technical personnel to modify failed color run coating schedules to hit color targets in very next run.   Contributed to three (3) record of inventions for the manufacturing of contact lenses during contract.

Radiant Imaging, Inc.
Contract for coating design in all areas of lighting system design.  Coatings have been designed for the following lighting systems:  medical, fiber optic/home, cinema, and projection.  On call to support design, contact vendors, estimate cost, and answer coating specification questions.

Eastman Kodak Company - Engineering Physics Laboratory
Open contract for coating design in all areas of display lighting and imaging.   Coatings have been designed specifically for color-splitting and color-mixing applications.  Reviewed viability of off-the-shelf color coatings for use within imaging systems.

Anonymous Clients

  • Contract to review viable manufacturing candidates for color-correcting cold mirror,  write design specifications, and review prototypes for company in Mentor, OH.
  • Open contract to design edge filters, laser coatings, high efficiency AR's, etc.  for optical manufacturing company in Long Island, NY.
  • Contract to assist in marketing and designing products outside of their niche market , for specialized coating company in Rochester, NY
  • Contract to assist evaporant manufacuturer in Massachusetts design coatings within PVD chambers.
  • Contract to develop Ophthalmic coatings for devices used for the eye.
  • Contract to develop coatings to increase the efficiency of Incandescent lighting.

Denton Vacuum, Inc.
Reviewed realtime coating data and assisted in design refinement.  Worked closely with Process Development Engineer and Technician.

Mark F. Connaughton - PE
Designed mirror for LED target used in rifle scopes.

Related Work Experience (back to top)

Adjunct Assistant Professor
University of Rochester, Institute of Optics (1/07 - present),
Optics 246/492 "Optical Interference Coatings", Spring 2007
- Optics 300 "Senior Seminar", Spring Semester
- Advanced Optical Interference Coatings [OPT 247/447], Spring (2009 - 2011)

University of Arizona (1/11 - present)
- Advanced Optical Interference Coatings [OPTI 577], Spring (2011)

OptiLayer Software
Sales/Technical Representative (1/04 - present)
Provide technical support to OptiLayer software users from North & South America, Australia, and New Zealand.

Optical Coating Design On-line Instructor
Founder/Sr. Optical Coating Engineer (3/00 - 6/02)
Supplying continuing education courses in the areas of optical thin film design for students on-line.

Bausch & Lomb, Global Vision Care Division, Rochester, NY
Senior Lens Designer/Optical Specialist (11/97 - 7/98)
Lead lens designer for Purevision extended wear contact lenses and follow up product lines. Achieved 100% aim-on-aim for tools-to-lenses for all Purevision prescriptive powers (-0.50 to -6.00 diopters) during development and after release to manufacturing.  Submitted two (2) record of inventions for the manufacturing of contact lenses.

Bausch & Lomb, Thin Film Technology Division, Rochester, NY
Senior Optical Engineer (7/94 - 11/97)
Project manager for numerous new lighting and eyewear prototypes, among those include: Display lighting for MR16’s, and Par products, European & American Dental lighting, Stage & Studio lighting, IR lighting, and Driving & Sport sunglasses. Worked on over 50 new prototype projects independently within first year, releasing 10 to manufacturing as new product lines totaling 7M in sales. Integrated new coating designs & deposition techniques for over 20 large capacity manufacturing coaters. Experienced with e-gun & resistive vacuum coated flat, curved, glass, plastic, and spun & die-cast metal substrates. Mentored by Mr. Harold Schroeder, pioneer in design & development of the cold mirror.  Designed optical coatings using TFCalc computer-aided software.

Laboratory for Laser Energetics, Thin Film Technology Div., Rochester, NY  (back to top)
Optical Engineer (12/91 - 7/94)
Designed and developed optical coatings using FTG Filmstar, PCFilm, and Thin Film Designer computer-aided design tools. Characterized conducting and insulating thin films and substrates using ellipsometry. Production Control supervisor for Thin Film Technologies cleanroom and sol-gel facility. Designed and implemented ultrapure water system, ultrasonic cleaning with robotics system, and two class 100/10 cleanrooms. Developed production level coating and cleaning methods for 300mm
diameter potassium dihydrogen phosphate (KDP), and ammonia hardening procedures for all sol-gel coated spatial filter lenses >283mm diameter. Directly responsible for cleaning, coating, mounting, and delivery scheduling of all 3500 optics for OMEGA Upgrade Laser. Managed six full time coating technicians and two part time University of Rochester undergraduates.

Litton/Itek Optical Systems, Optical Coatings Department, Lexington, MA   (back to top)
Optical Engineer (6/89 - 8/91)
Head coating designer and assistant program manager for gallium arsenide and zinc selenide IR window material study for MacDonnell Douglas and General Dynamics. Compiled an optical, physical, and mechanical properties listing for over 30 commercially available visible and IR transmitting substrates. Awarded "Itek Excellence Award" for Stealth Window Coating Design within first 6 months of employment. Designed beamsplitters, edge filters, AR's, HR's, and bandpass filters for wavelengths ranging from 200nm - 13microns. Designed RF attenuating and absorbing windows. Created in-house programming for determining the optical properties of semiconductor films and substrates versus temperature and carrier concentration.

Patents (back to top)    

"A System for Extending the Useful Life of Colored Gels,"
    Kruschwitz, Jennifer D.; Bausch & Lomb ,  
    Esakoff, Gregg;   Foster, Fred; Electronic Theatre Controls
    PCT Patent # WO98/00669,
    US Patent # 6,004,009 12/21/1999 (Kruschwitz spelled incorrectly as Kurschwitz)

Abstract: The invention is directed to a system and method for extending the life of a bluish, greenish, or reddish colored gel, comprising a filter coating situated between a light source and a colored gel, which filter coating has a reflectance band falling in the same wavelength region of the visible light spectrum as the absorption band for the colored gel such that burning or bleaching of the color is prevented or delayed.

"Optically Modified 3-Dimensional Object,"
    Deliso, Evelyn McGee; Wen, Mei; Masco Corporation,  
    Kruschwitz, Jennifer; JK Consulting
    US Patent Application US 2009/0225427 A1; filed March 2008

"Laser Illuminated Micro-Mirror Projector,"
    Bietry, Joseph; Silverstein, Barry; Eastman Kodak Company,  
    Kruschwitz, Jennifer D.; JK Consulting
    US Patent Application US 2010/0007852 A1; filed July 2008

Short Courses

Optical Coating Design and Analysis for High Manufacturabilty
SPIE OptiFab 2007

Papers (back to top)

"Analysis and Design of Transparent Conductive Coatings and Filters," 
    M. Kohin, S.J. Wein, J. D. Traylor, R.C. Chase, J.E. Chapman, Opt. Eng. 32, 911-925 (1993).

"Optical and Durability Properties of Infrared Transmitting Thin Films,"
    J.D. Traylor Kruschwitz, W.T. Pawlewicz, Appl. Opt. 36, No. 10, April 1997.

"Bandwidth Reduction Technique for Multilayer Wavelength Division Multiplexing (WDM)
Bandpass Filters,"
   Jennifer D.T. Kruschwitz, Engineering and Laboratory Notes, Appl. Opt., 39, pp. 6527-6528 (2000).

Articles (back to top)

"Career as a Consultant: Making the Change,"
     Jennifer D. T. Kruschwitz, Optics and Photonics News, 14, No. 2, pp. 14-15, February 2003.

"Career as a Consultant: Getting the Word Out,"
     Jennifer D. T. Kruschwitz, Optics and Photonics News, 14, No. 4, pp. 18-19, April 2003.

"Software Tools Speed Optical Thin-Film Design,"
     Jennifer D. T. Kruschwitz, Laser Focus World,
     pp. 157-166, June 2003.

Optics Innovations In Optics and Photonics News Company Profiles:
    "QED Technologies, Inc. - January 2006.
    "Ocean Optics, Inc." - February 2006.
    "4D Technolgies, Inc." - April 2006.
    "Semrock, Inc." - July/August 2006.
    "Red-C, Inc." - November 2006.
    "Headwall Technologies, Inc." - January 2007.

Presentations (back to top)

"Coating of 2-meter Optics Using Ion Assisted Deposition,"
    W.T. Pawlewicz, T.R. Culver, J.D. Traylor, E. Prevost, S. Walters, and J. Zachistal, presented at Large Optics, SPIE Symposium, Rochester, NY, October 1991.

"Optical and Durability Properties of Bi2O3, Cr2O3, HfO2, Ta2O5, Y2O3, and ZrO2,"
    J. D. Traylor and W.T. Pawlewicz, presented at the Optical Interference Coatings, Fifth Topical Meeting,Tucson, AZ, June 1992.

"Optical Filter to Extend the Lifespan of Colored Gels,"
    J. D. T. Kruschwitz, presented at the Optical Interference Coatings, Seventh Topical Meeting, Tucson, AZ, June 1998.

"Designing Nonpolarized High Reflecting Coatings within Immersed High-Index Media,"
   J. D. T. Kruschwitz, presented at the Optical Interference Coatings, Eighth Topical Meeting,  Banff, Alberta, Canada, July 2001.

"Designing Color Correcting Coatings for Optimum Color Rendering Index and Light Output,"
   J. D. T. Kruschwitz, presented at the Optical Interference Coatings, Eighth Topical Meeting, Banff, Alberta, Canada, July 2001.

"The Effects of Process Variations on Color Control Coatings,"
   J. Kruschwitz, I. Stevenson, G. Sadkhin, presented at the 46 Annual SVC Technical Conference, San Francisco, Calif., May 2003.

"Reverse Engineering as an Approach to  Statistical Process Analysis,"
   J. Kruschwitz, I. Stevenson, G. Sadkhin, presented at the 48 Annual SVC Technical Conference, Denver, CO., May 2005.

"Software Tools for Studying Optical Coating Manufacturability with Modern Monochromatic Monitoring Devices,"
   A. Tikhonravov, M. Trubetskov, J. Kruschwitz, A. Zoller, H. Hagedorn, B. Romanov, M. Boos, presented at SPIE's OptiFab, Rochester, NY., May 2007.

"Optical Characterization Models for Dispersion Analysis of Substrates and Films with Abrupt Absorption Transitions," Commercial Presentation
   J. Kruschwitz, A. Tikhonravov, M. Trubetskov, presented at SPIE's OptiFab, Rochester, NY., May 2007.

"Designing High-Efficiency Interference Coatings with Atomic Layer Deposited TiO2 Layers,"
    J. D. T. Kruschwitz, presented at the Optical Interference Coatings, Tenth Topical Meeting, Tucson, AZ, July 2007.

Invited Talks(back to top)

Optical Interference Coatings: Design Tips and Tricks of the Trade and other Industrial Points of Interest
Rochester Local Section of the OSA, December 5, 2006.

Optical Interference Coatings: Modern Design Methods
Rochester Student Section of SPIE, July 14, 2009.

Coating Design Contests (back to top)

Telecommunication Narrow Bandpass Filter - presented at the Optical Interference Coatings, Eighth Topical Meeting, Banff, Alberta,   Canada, July 2001.

Design approach reviewed in:
"Topical Meeting on Optical Interference Coatings (OIC 2001):  Design Contest Results,"
       A. Thelen, M. Tilsch, A. Tikhanravov, M. Trubetskov, U. Brauneck;  Appl. Opt., v. 41, No. 16, pp. 3022-3038,  June 2002.

Professional Societies (back to top)

Optical Society of America  (1989-present)
   New England Section of OSA, Secretary - (1989-1991)
   Rochester Section of OSA (1991-present)
             Educators' Day Committee Member/Fundraiser (2004, 2006, 2008)
             Treasurer (2006-2007)
             President, Past-President (2009, 2010)
   OSA Thin Film Technical Group Division Chair (2011 - 2013)
   OSA Optical Interference Coating (OIC) Conference Technical Council (1995, 2004, 2007)
            OIC Design Contest Co-Chair (2013)
   OSA Adolph Lomb Award Committee Chair (2011-2012)

   OSA Membership & Education Services Council (2002 - 2006)
            Chair (2004 - 2005)
   OSA Executive Board of Directors (2004 - 2005)
   OSA Finance Committee(2004 - 2005)
   OSA Editory Advisory Committee to OPN Magazine (2006 - 2008)
   OSA Program Advisory Committee to the OSA Foundation (2007 - 2008)

SPIE (1989-present)
   Program Chair for Coatings Conference at Annual Meeting (2004, 2005, 2008)
   Editor of SPIE Conference Proceedings, Volume 5527
   Short Course Instructor, OptiFab 2007

Engineering Strengths (back to top)        
Coating Design
(UV, Visible, Infrared; Glass, Metal, Ceramic, Alloy; Academic, Government, Industrial)
(metamerism, CIE 1931, CIE 1964, Color Rendering, Lighting, color balance, color difference)

Personal Strengths (back to top)
Technical writing     Optimistism          Creative          Encouraging           Empowering
Communication       Motivating            Pro-active       Teaching skills        Networking

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