Optical Bit Recording in a Human Fingernail
Optical Bit Recording in a Human Fingernail
复制标题
人类指甲中的光学位记录
DOI：
10.1143/jjap.43.168
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发表时间：
2004
影响因子：
1.5
通讯作者：
N. Nishida
中科院分区：
文献类型：
--
作者：
A. Takita;M. Watanabe;Hirotsugu Yamamoto;S. Matsuo;H. Misawa;Y. Hayasaki;N. Nishida
利用飞秒激光处理技术，演示了人指甲中的光学位记录。通过聚焦飞秒激光脉冲的照射，在指甲中形成一个比特。我们研究了辐照脉冲能量与钻头直径和长度的关系。基于高斯光束辐照模型，对钻头直径和长度进行了理论解释。此外，根据测量的比特直径和比特长度估计可实现的记录密度。我们发现，形成一个比特所需的脉冲能量取决于记录深度和指甲的表面状况。
Optical bit recording in a human fingernail is demonstrated by using a femtosecond laser processing technique. A bit is formed in a fingernail by irradiation of a focused femtosecond laser pulse. We have investigated the dependence of the irradiation pulse energy on the diameter and length of the formed bit. The bit diameter and length are theoretically explained based on a Gaussian beam irradiation model. Furthermore, the achievable recording density is estimated from the measured bit diameter and bit length. We have found that the pulse energy required to form a bit depends on the recording depth and the surface condition of the fingernail.