Journal
JOURNAL OF LASER MICRO NANOENGINEERING
Volume 4, Issue 1, Pages 18-21Publisher
JAPAN LASER PROCESSING SOC
DOI: 10.2961/jlmn.2009.01.0004
Keywords
laser trapping; optical rotator; four-wing rotator; top-sloped rotator; silica glass; femtosecond laser-assisted etching
Categories
Funding
- Association for the Progress of New Chemistry
- KAKENHI [20360115]
- Grants-in-Aid for Scientific Research [20360115] Funding Source: KAKEN
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We report the fabrication and rotation of an optical rotator confined in a microcavity inside silica glass material, based on the techniques of femtosecond laser-assisted etching and laser manipulation. The rotator thus prepared may act as a micropump and micromixer. The material of this rotator is identical to that of the host substrate, because femtosecond laser-assisted etching is an internal removal process. As a result, the rotator as well as substrate has high chemical stability and good optical transparency. We also describe tests in which we demonstrated that this fabrication technique is versatile enough to allow one to parepare two types of rotators with different shapes.
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