Profile: Kaiser Optical Systems, Inc. dedicates to provide scientific instrumentation, products for defense and applied holographic technology. We market products, which include raman sensors and instrumentation, advanced holographic components for spectroscopy, telecommunications, astronomy & ultra-fast sciences and display systems for aircraft. Holographic notch filters provide up to six orders of magnitude of attenuation of the rayleigh line along with sharp spectral cutoffs that allow bands as close as 100 cm–1 to be detected.