Alannah Johansen

Applications Specialist, Alluxa

Alannah Johansen is applications specialist at Alluxa (Santa Rosa, CA).

FIGURE 1. A dual-band IR filter used to monitor climate change exhibits negligible absorption in the water band and low passband ripple.

Photonics Products: Optical Filters - Multiband coated filters redefine performance standards for scientific applications

June 13, 2016
Advances in thin-film technology have given rise to a new class of multiband coatings.