The Precision Hand Polishing of BBO and LBO
- Lawrence Livermore National Laboratory, Optical Sciences and Engineering Group, Livermore, California (United States)
A hand polishing method for generating stain-free surfaces for BBO and LBO having surface figures of 1/10th wave or better, parallelisms of less than 1 arc s and surface roughness of 10 {Angstrom} RMS or less is described. Barium metaborate (BaB{sub 2}O{sub 4}, BBO) and lithium triborate (LiB{sub 3}O{sub 5}, LBO) are nonlinear crystals characterized by a wide transparency range, small birefringence, a moderate nonlinear optical coefficient, and a high optical damage threshold. The realization of these properties depends, to a great extent, on the ability to fabricate quality surfaces for these crystals. The focus of this note is the precise hand polishing of these crystals. {copyright} 1998 Optical Society of America
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 306243
- Journal Information:
- Applied Optics, Journal Name: Applied Optics Journal Issue: 34 Vol. 37; ISSN APOPAI; ISSN 0003-6935
- Country of Publication:
- United States
- Language:
- English
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