May 14, 2013, James C. Wyant

Precision Interferometric Measurements In Non-ideal Environments


Precision optical components are essential for modern optics/photonics systems.  Modern electronics, computers, and software have made it possible to greatly improve the fabrication and testing of optical components and optical systems and the resulting improvements in the new optical instruments and devices we use are evident.  Once the data obtained testing an optical system is in the computer it is possible to do sophisticated computer analysis to determine what is wrong with the optical system and what needs to be done to correct the system, and how well the system will perform if it is not improved.  It is now practical to test optical systems much better than the reference optics used in the optical test setup.  Until recently, a major limitation of interferometry for precision metrology was the sensitivity to the environment.  In recent years many techniques for performing high quality interferometric measurements in non-ideal environments have been developed and new techniques are being introduced all the time.  This talk discusses some of the different techniques for reducing the effects of vibration and atmospheric turbulence on interferometric measurements.  The application of these techniques for the measurement of surface vibration, the testing of optical components including large astronomical optics, and the measurement of deformations of diffuse structures will be described.


James Wyant, College of Optical Sciences at the University of Arizona


James C. Wyant is an emeritus professor at the College of Optical Sciences at the University of Arizona, where he was Director (1999-2005) and Dean (2005-2012).  He received a B.S. in physics from Case Western Reserve University and M.S. and Ph.D. in optics from the University of Rochester. He was a founder of the WYKO Corporation and served as its president and board chairman from 1984 to 1997 and he was a founder of the 4D Technology Corporation and currently serves as its board chairman. Wyant is a member of the National Academy of Engineering, a Fellow of OSA (Optical Society of America), SPIE (International Society of Optics and Photonics), and the Optical Society of India, an honorary member of the Optical Society of Korea, and former editor-in-chief of the OSA journal Applied Optics.  He was the 2010 president of OSA and the 1986 president of SPIE. 




Pre-registration discount DINNER reservations must be made by 6 PM, May 10, 2013 ,the Friday before the meeting. Full-price reservation accepted thereafter. Walk-ins welcome at full-price. MEETING-ONLY registrations appreciated by May 13, 2013, a day before the meeting.

Please make reservations online. Reservations may also be left on the answering machine at 617.584.0266. We no longer have an email address for reservations due to SPAM. When making reservation requests, please provide the following information:

  • DINNER AND MEETING or meeting only
  • Name(s) and membership status
  • Daytime phone number where you can be reached (in case of change or cancellation)



Optikos Corporation
107 Audubon Road, Bldg. 3
Wakefield, MA 01880


(Map to Optikos).


Networking—5:45 PM, Dinner—6:45, Meeting—7:30 PM.


Vegetarian option available on request

Dinner Prices:

   Register on/before
 DINNER Reservation Date 
 Late Reservations 
 NES/OSA Members and their guests   $25.00 each   $30.00 
 Non-members   $30.00 (See NOTE Below)   $35.00 
 Students   $5.00   $5.00 
 Post-Docs   $15.00   $15.00 








NOTE: The NES/OSA has not changed dinner prices in several years but has been facing higher costs. We will maintain the current dinner prices for those reserving dinner on the requested date but still try to accommodate late reservations.

General Information on NES/OSA Meetings

Cancellations and No-shows:

If the meeting must be canceled for any reason, we will try to call you at the phone number you leave with your reservation. Official notice of cancellation will be on our answering machine.

We have to pay for the dinners reserved as of the Tuesday before the meeting, so no-shows eat into our cash reserve. If you will not be able to attend, please let us know as early as possible. Otherwise, no-shows will be billed.

Membership Rates:

Regular members $15.00
Student members free




NOTE: The extra $5.00 of the non-member dinner fee can be used toward membership dues if the nonmember joins and pays dues for the current year at the meeting.