Micrograting Polymerization Fabrication with a Single Femtosecond Laser Pulse at 400 nm Wavelength

郭红沧; 郭亨长; 蒋红兵; 杨宏; 龚旗煌; 王涛; 施盟泉; 吴飞鹏

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Micrograting Polymerization Fabrication with a Single Femtosecond Laser Pulse at 400 nm Wavelength

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High diffraction efficiency refractive index-modulated holographic micrograting on a polymer thin film was obtained with a single femtosecond laser pulse interference and photo-polymerization. The diffractive efficiency of the micrograting with an He-Ne laser is up to 78% when the thickness of the film is 90 μm, which corresponds to the refractive index-modulation as large as 2.4 × 10-3. The compared experiment with a femtosecond oscillator laser indicated that a single femtosecond Iaser pulse has the advantages in laser machining over the cw holography method such as high fabrication speed, good surface structure and high diffractive efficiency.

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《中国物理快报：英文版》 |2003年第5期|682-684|共3页
作者
郭红沧; 郭亨长; 蒋红兵; 杨宏; 龚旗煌; 王涛; 施盟泉; 吴飞鹏;
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State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871;

State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871;

State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871;

State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871;

State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871;

Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101;

Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101;

Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101;

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Micrograting Polymerization Fabrication with a Single Femtosecond Laser Pulse at 400 nm Wavelength

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