Measurement of diameter of sub-micrometer fiber based on analysis of scattered light intensity distribution under standing wave illumination. Issue 1 (2022)

• Record Type: Journal Article
• Authors: Michihata, Masaki; Murakami, Sojiro; Kadoya, Shotaro; Takahashi, Satoru
• Is Part Of: CIRP annals. Volume 71:Issue 1(2022)
• Page Start: 421
• Page End: 424
• Publication Date: 2022
• Subjects: Sub-micrometer fiber -- Nanofiber -- Mie scattering theory -- Standing wave -- Diameter -- Tapered optical fiber; Production engineering -- Research -- Periodicals; 670.5
• DOI: 10.1016/j.cirp.2022.03.008
• Languages: English
• ISSNs: 0007-8506

Abstract

Abstract: This paper proposes a technique to measure a diameter of a sub-micrometer fiber having diameters of less than 1 μm. The proposed technique uses counter-propagating beams as an illumination, which form the standing wave surrounding the fiber. By actively controlling the spatial phase of the standing wave, the scattered light intensity distribution from the fiber is modulated, and the tendency of the modulation depends on the fiber diameter. By analyzing the modulated scattered light intensity distribution, the diameter of the sub-micrometer fiber can be measured. It was experimentally verified that it was possible to measure the diameter of the fiber with a diameter of approximately 500 nm with the proposed measurement method.