抜粋
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.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 168-171 |
| ページ数 | 4 |
| ジャーナル | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
| 巻 | 43 |
| 発行部数 | 1 |
| DOI | |
| 出版物ステータス | Published - 2004 1 |
| 外部発表 | Yes |
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
フィンガープリント Optical Bit Recording in a Human Fingernail' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。
これを引用
Takita, A., Watanabe, M., Yamamoto, H., Matsuo, S., Misawa, H., Hayasaki, Y., & Nishida, N. (2004). Optical Bit Recording in a Human Fingernail. Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 43(1), 168-171. https://doi.org/10.1143/JJAP.43.168