Journal
OPTICS EXPRESS
Volume 19, Issue 10, Pages 9419-9425Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.19.009419
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Funding
- Australian Research Council (ARC) Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS)
- Innsbruck Medical University
- EPSRC [EP/E055818/1]
- Leverhulme Trust
- EPSRC [EP/E055818/1, EP/H049037/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/H049037/1, EP/E055818/1] Funding Source: researchfish
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We present the use of a liquid crystal spatial light modulator to correct for the refractive-index mismatch induced spherical aberration in a high refractive-index lithium niobate crystal when a low repetition rate amplified laser is used for the direct fabrication of three-dimensional micro-structures. By correcting the aberration based on experimentally determined values, we show that the size of written structures decreases dramatically, which allows the fabrication of high quality micro-structures such as three-dimensional photonic crystals. We demonstrate that, through the use of adaptive optics, the fabrication depth and the stopgap strength in the corresponding photonic crystals are increased by a factor of two to three. (C) 2011 Optical Society of America
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