Supercontinuum-illumination for long-working-distance microscopic imaging of air-liquid mixed sprays in the near-nozzle region

被引：1

作者：

Huang, Zhenqiang ^{[1
]}

Tan, Wenjiang ^{[1
]}

Si, Jinhai ^{[1
]}

Zeng, Shijia ^{[1
]}

Hou, Xun ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Key Lab Phys Elect & Devices, Minist Educ, Shannxi Key Lab Informat Photon Tech,Sch Elect Sc, Xian 710049, Shaanxi, Peoples R China

来源：

LASER PHYSICS | 2021年 / 31卷 / 07期

基金：

中国国家自然科学基金;

关键词：

supercontinuum; air-liquid mixed sprays; femtosecond laser; microscopic imaging; LASER; STAGE;

D O I：

10.1088/1555-6611/abfe53

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate the optical diagnosis of air-liquid mixed sprays in the near-nozzle region using the supercontinuum (SC)-illumination long-working-distance microscopic imaging method, enabling the imaging of microdroplets, ligament structures, and cavities. In addition, SC-illumination long-working-distance microscopic imaging effectively suppresses speckles and reveals the ligament structures in the sprays more accurately. Finally, analysis of the droplet size distribution of the sprays under different air and liquid flow rates indicates that SC-illumination long-working-distance microscopic imaging offers several advantages for studying spray dynamics at the small structure level.

引用

页数：5

共 22 条

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