AOM - Arizona Optical Metrology LLC | 2,243 followers on LinkedIn. Your Optical Metrology Partner | AOM - Arizona Optical Metrology provides measurement solutions for optical surfaces and systems. Forged by decades of practical experience, we efficiently perform engineering and manufacture custom products for optical surface measurement, precision alignment, and optical system metrology. Our most popular products are the computer-generated hologram (CGH) null correctors for interferometric measurement of aspheric surfaces and software for processing interferometric data.