Alluxa Educational Webinar Series

Advanced Optical Coating Design: An Open-Ended Approach

A Webinar With Dr. Angus MacLeod, President and CEO, Thin Film Center.

01:00 PM Eastern Daylight Time
12:00 PM Central Daylight Time
10:00 AM Pacific Daylight Time
17:00 Greenwich Mean Time
Cost: Free to attend.
Duration: Approximately one hour.
Presented by: Dr. Angus Macleod, President and CEO, Thin Film Center
Sponsored by: Alluxa, Eddy Company, PG&O, and Zemax


Alluxa Educational Webinar Series: Advanced Optical Coating Design: An Open-Ended Approach

One way of designing an optical coating is to create a target specification and launch a powerful computer-based refinement or synthesis process, and then go to lunch. This quite successful method, however, does not, in itself, induce understanding, and the greater our understanding, the better we are at designing coatings and dealing with those occasionally unexpected and bothersome events. A prerequisite for design is a powerful computer that removes the drudgery of calculation but leaves the ability for open-ended exploration. There is a lot going on in coating design. Some of it is of instant value and usefulness, such as thickness modulation. Some of it is being pursued in communities other than optical thin films and is frequently described in an unfamiliar technical context. Open-ended exploration of design possibilities is not only enjoyable, but who knows, the results could turn out to be very useful.

A Guide to Tolerancing of Optical Coatings

A Webinar With Dr. Angus MacLeod, President and CEO, Thin Film Center.

In this webcast on tolerancing of optical coatings, Angus Macleod of the Thin Film Center attempts to answer the primary question, "Can this coating be successfully manufactured?" Macleod discusses the range of tolerancing techniques and their development over time, including the concept of sensitivity; the advent of Monte Carlo methods; and, supplementing the Monte Carlo models and replacing the idea of sensitivity, the concept of performance envelopes that represent the full range of performance variation that can be caused by layer thickness errors of any magnitude. He discusses how the idea of tolerances cannot be separated from the process of monitoring during coating deposition, and talks about how process simulation using Monte Carlo principles is the ultimate technique, sometimes called computational manufacture, and how performance can be perturbed by other errors in manufacture such as departures from uniformity.

Alluxa designs and manufactures next generation, hard coated optical filters using a proprietary plasma deposition process in Santa Rosa, CA. Alluxa’s unique, purpose-built deposition platform and control systems were designed, developed, and built by our team in Santa Rosa, CA to address the demanding requirements of the next generation of systems and instruments.

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