Jiangsu University

Yanqun Tong

Shouqi Yuan

Mingyang Chen

Xudong Ren

Jie Wang

Rui Zhou

Naifei Ren

Yonghong Fu

Jiaxing Lu

Hao He

Chengya Zuo

Deshun Wang

Liu Lv

Jiawei Cong

Kun Wu

Zhiqiang Zhou

A non-linear optical pumping detection apparatus and a non-linear optical absorption cross-section measurement method, which can simultaneously measure degenerate and non-degenerate two-photon absorption cross-section spectra. The measurement process is automatic, efficient and fast. The working wavelength band is from 380 nm to near infrared 1064 nm, and the non-linear performance measurement of the super-continuous wide spectra can be realized. A zoom optical system with a larger entrance pupil diameter is adopted as a weak signal acquisition lens. So the weak signal can be effectively extracted from background noise. Meanwhile, the mean square root diameter of an on-axis image point of the zoom optical system is 100 to 150 microns, the divergence angle 2&#x3b1; of the on-axis image point is 30.6 degrees, which well match the optical fiber coupling condition, thereby improving the coupling efficiency of the space light coupling into the optical fiber, and greatly improving the measurement sensitivity.

Non-linear optical pumping detection apparatus and non-linear optical absorption cross-section measurement method

A device and a method for laser-inducing cavitation strengthening with multi-system automatic coordination work. The device comprises a plurality of systems, including a clamping system, a lifting system, an imaging system, a computer control system, a laser system and an energy density amplifying system, etc. The device for laser-inducing cavitation strengthening comprises a laser cavitation device and a fixing platform.

Device for laser-inducing cavitation strengthening with multi-system automatic coordination work

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Jiangsu, China

Yanqun Tong