Conference Publication Details
Mandatory Fields
Nieto, D,Arines, J,Gomez-Reino, C,O'Connor, GM,Flores-Arias, MT,RodriguezVera, R,DiazUribe, R
Microlenses fabrication on glass by combining laser with thermalre-flow technique
22ND CONGRESS OF THE INTERNATIONAL COMMISSION FOR OPTICS: LIGHT FOR THE DEVELOPMENT OF THE WORLD
2011
November
Published
1
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Optional Fields
Lasers ablation Optical design and fabrication Microlenses array ARRAYS ABLATION FEMTOSECOND REFLOW
We describe a hybrid technique for fabricating microlens arrays on soda-lime glass substrates composed by a direct-laser write and post thermal treatment. In particular we use a nanosecond Q-Switch Nd: YVO4 laser and a mufla Heraeus furnace. Temperature dependence of the reflowing process was analyzed in the range of 620 degrees C-670 degrees C. An improvement in the optical quality of the microlens arrays were obtained as temperature increases. The best microlens array was obtained at 670 degrees C with the following characteristics: diameter 47.89 +/- 6.65 mu m; focal length 510 +/- 10 mu m; and focal spot size 2.82 +/- 0.02 mu m. The presented technique has been shown to be capable of fabricating low cost microlens arrays with good optical quality.
10.1117/12.902099
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