Journal
OPTICS EXPRESS
Volume 19, Issue 24, Pages 24122-24128Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.19.024122
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Funding
- Engineering and Physical Sciences Research Council, UK [EP/H049037/1, EP/E055818/1]
- Jesus College, Oxford
- EPSRC [EP/H049037/1, EP/E055818/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/E055818/1, EP/H049037/1] Funding Source: researchfish
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Femtosecond laser fabrication of controlled three dimensional structures deep in the bulk of diamond is facilitated by a dual adaptive optics system. A deformable mirror is used in parallel with a liquid crystal spatial light modulator to compensate the extreme aberrations caused by the refractive index mismatch between the diamond and the objective immersion medium. It is shown that aberration compensation is essential for the generation of controlled micron-scale features at depths greater than 200 mu m, and the dual adaptive optics approach demonstrates increased fabrication efficiency relative to experiments using a single adaptive element. (C) 2011 Optical Society of America
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