Laser ultrasonics for measurement of the thickness of metal plates using a photorefractive liquid crystal

被引：0

作者：

Sasaki, Takeo ^{[1
]}

Takashi, Toshinobu ^{[1
]}

Ikeda, Gouta ^{[1
]}

Watanabe, Junko ^{[1
]}

Nagaoka, Miku ^{[1
]}

Yamazaki, Shinnosuke ^{[1
]}

Naka, Yumiko ^{[1
]}

Van Le, Khoa ^{[1
]}

机构：

[1] Tokyo Univ Sci, Fac Sci, Dept Chem, 1-3 Kagurazaka,Shinjuku Ku, Tokyo 1628601, Japan

来源：

HOLOGRAPHY: ADVANCES AND MODERN TRENDS VIII | 2023年 / 12574卷

关键词：

Photorefractive effect; flexoelectric liquid crystals; ferroelectric liquid crystals; laser ultrasonics; SURFACE; SENSOR; MOTION;

D O I：

10.1117/12.2664898

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The photorefractive effect of smectic liquid crystal mixtures was investigated and the application to laser ultrasonic measurements was demonstrated. Smectic liquid crystal mixtures, composed of smectic-C liquid crystals, photoconductive chiral compounds, and a sensitizer, exhibit a fast photorefractive effect. The principle of ultrasonic measurement is that a nanosecond laser pulse is shot on an object to cause an ultrasonic vibration, a continuous laser beam is irradiated on the object, and the ultrasonic variation is detected using photorefractive two-beam coupling. This method can investigate an object's thickness and internal structure without contact.

引用

页数：10

共 27 条

[1] Enhanced photorefractive effect in liquid crystal structures co-doped with semiconductor quantum dots and metallic nanoparticles
Anczykowska, A.
Bartkiewicz, S.
Nyk, M.
Mysliwiec, J.
[J]. APPLIED PHYSICS LETTERS, 2011, 99 (19)
[2] Blanche P.-A., 2016, Photorefractive Organic Materials and Applications
[3] Review of Organic Photorefractive Materials and Their Use for Updateable 3D Display
Blanche, Pierre-Alexandre
Ka, Jae-Won
Peyghambarian, Nasser
[J]. MATERIALS, 2021, 14 (19)
[4] DETECTION OF ULTRASONIC MOTION OF A SCATTERING SURFACE BY 2-WAVE MIXING IN A PHOTOREFRACTIVE GAAS CRYSTAL
BLOUIN, A
MONCHALIN, JP
[J]. APPLIED PHYSICS LETTERS, 1994, 65 (08) : 932 - 934
[5] All-optical laser-ultrasonic technology for width and depth gauging of rectangular surface-breaking defects
Chen, Cheng
Ju, Bing-Feng
Yang, Xiaoyu
Wang, Chuanyong
Sun, Anyu
Gong, Jinlu
Li, Zhihong
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2021, 92 (05)
[6] Novel theoretical aspects on photorefractive ultrasonic detection and implementation of a sensor with an optimum sensitivity
de Montmorillon, LA
Delaye, P
Launay, JC
Roosen, G
[J]. JOURNAL OF APPLIED PHYSICS, 1997, 82 (12) : 5913 - 5922
[7] DETECTOR FOR AN OPTICAL-FIBER ACOUSTIC SENSOR USING DYNAMIC HOLOGRAPHIC-INTERFEROMETRY
HALL, TJ
FIDDY, MA
NER, MS
[J]. OPTICS LETTERS, 1980, 5 (11) : 485 - 487
[8] OPTICAL MEASUREMENT OF ULTRASONIC NANOMETER MOTION OF ROUGH-SURFACE BY 2-WAVE MIXING IN B12SIO20
HONDA, T
YAMASHITA, T
MATSUMOTO, H
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1995, 34 (7A): : 3737 - 3740
[9] Khoo I.C., 2022, WILEY SERIES PURE AP
[10] Observation of photorefractive effects in blue-phase liquid crystal containing fullerene-C60
Khoo, Iam Choon
Chen, Chun-Wei
Ho, Tsung-Jui
[J]. OPTICS LETTERS, 2016, 41 (01) : 123 - 126

← 1 2 3 →