| Item type |
文献 / Documents(1) |
| 公開日 |
2019-09-11 |
| アクセス権 |
|
|
アクセス権 |
open access |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版社版DOI |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1364/OE.26.026292 |
|
|
言語 |
ja |
|
|
関連名称 |
10.1364/OE.26.026292 |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| タイトル |
|
|
タイトル |
Multicascade-linked synthetic wavelength digital holography using an optical-comb-referenced frequency synthesizer |
|
言語 |
en |
| 著者 |
山際, 将具
南川, 丈夫
Trovato, Clément
オガワ, タカユキ
Abdelsalam Ibrahim, Dahi Ghareab
カワヒト, ユウスケ
オエ, リョウ
シブヤ, キュウキ
水野, 孝彦
Abraham, Emmanuel
水谷, 康弘
岩田, 哲郎
山本, 裕紹
美濃島, 薫
安井, 武史
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Digital holography (DH) is a promising method for non-contact surface topography because the reconstructed phase image can visualize the nanometer unevenness in a sample. However, the axial range of this method is limited to the range of the optical wavelength due to the phase wrapping ambiguity. Although the use of two different wavelengths of light and the resulting synthetic wavelength, i.e., synthetic wavelength DH, can expand the axial range up to several hundreds of millimeters, its axial precision does not reach sub-micrometer. In this article, we constructed a tunable external cavity laser diode phase-locked to an optical frequency comb, namely, an optical-comb-referenced frequency synthesizer, enabling us to generate multiple synthetic wavelengths within the range of 32 μm to 1.20 m. A multiple cascade link of the phase images among an optical wavelength ( = 1.520 μm) and 5 different synthetic wavelengths ( = 32.39 μm, 99.98 μm, 400.0 μm, 1003 μm, and 4021 μm) enables the shape measurement of a reflective millimeter-sized stepped surface with the axial resolution of 34 nm. The axial dynamic range, defined as the ratio of the axial range ( = 2.0 mm) to the axial resolution ( = 34 nm), achieves 5.9 × 105, which is larger than that of previous synthetic wavelength DH. Such a wide axial dynamic range capability will further expand the application field of DH for large objects with meter dimensions. |
|
言語 |
en |
| 書誌情報 |
en : Optics Express
巻 26,
号 20,
p. 26292-26306,
発行日 2018-09-25
|
| 収録物ID |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
10944087 |
| 出版者 |
|
|
出版者 |
OSA publishing |
|
言語 |
en |
| 権利情報 |
|
|
言語 |
en |
|
権利情報 |
© 2018 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved. |
| EID |
|
|
識別子 |
352321 |
|
識別子タイプ |
URI |
| 言語 |
|
|
言語 |
eng |
oe_26_20_26292.pdf (4.88 MB)
