Measurements of an ultra-low loss polarizer for λ = 1064 nm using a high finesse optical cavity

Autor: Sophie Thieux, G. P. Newton, D.A Clubley, Kenneth D. Skeldon, Marc von Gradowski, B. Barr
Rok vydání: 2001
Předmět:
Zdroj: Journal of Modern Optics. 48:695-702
ISSN: 1362-3044
0950-0340
Popis: We present experiments performed on a specially designed calcite polarizer based around a modified Nicol prism optimized for use at 1064 nm. The polarizer combines the physics of birefringence, Brewster's angle and total internal reflection to achieve a combination of close to zero insertion loss and high extinction ratio for one of the incident light polarizations, limited in theory only by absorption losses in the calcite. We describe optical cavity based measurements which reveal the loss properties to be around 220 ppm, setting an upper limit on the bulk absorptance of calcite at 1064 nm, and offering a polarizer with lower loss than high grade anti-reflection coated components.
Databáze: OpenAIRE