Optical Surfaces Ltd. has supplied the Laboratoire d'astrophysique de Marseille (LAM) with polished substrates to manufacture the high precision grisms that lie at the heart of a Near Infrared Spectrophotometer designed to perform red shift measurements in the forthcoming Euclid space mission by the European Space Agency (ESA).
LAM is one of the largest astrophysics public research institutes in France. It combines fundamental research in Astrophysics and the development of instrumentation for space and ground-based telescopes. The ESA's Euclid space mission will study the dark universe. One of the on-board probes will be a Baryonic Acoustic Oscillations (BAO) device which will measure the red shift of millions of galaxies through their Near Infrared spectra. The Near Infrared Spectrophotometer instrument that forms part of the BAO has been designed to use low-resolution grisms in slit less mode to perform this massive red shift measurement.
Optical Surfaces Ltd has been producing optical components, mounted optical components and systems for more than 50 years and is now accepted as one of the world's leading manufacturers of high-precision optics and optical systems for space and ground based telescope applications. The company's ISO 9001-2008 approved manufacturing workshops and test facilities are deep underground in a series of tunnels excavated in solid chalk where temperature remains constant and vibration is practically non-existent. With such stable conditions testing, particularly with long path lengths, becomes quantifiable and reliable. Working with these natural advantages is a highly skilled team of craftsmen with a commitment to excellence in both product quality and customer service.