LOW-ENERGY ACTIVATION OF SUPERHEATED N-PENTANE BOILING-UP BY LASER PULSE AT THE FIBER-LIQUID INTERFACE

被引:0
|
作者
Kotov, A. N. [1 ,2 ]
Gurashkin, A. L. [1 ]
Starostin, A. A. [1 ]
Skripov, P. V. [1 ]
机构
[1] Russian Acad Sci, Inst Thermal Phys, Ural Branch, Ekaterinburg, Russia
[2] Russian Acad Sci, Inst Thermal Phys, Ural Branch, Amundsena St, Ekaterinburg 620016, Russia
基金
俄罗斯科学基金会;
关键词
superheat; boiling-up; activation; laser pulse; interface; optical fiber;
D O I
暂无
中图分类号
O414.1 [热力学];
学科分类号
摘要
The essence of the present study is to elucidate the possibility of low-energy activation of liquid boiling-up by laser pulses at the solid-liquid interface in a wide range of superheated states. The object of study was n-pentane, uniformly superheated in a miniature bubble chamber. The activation is carried out via a single-mode fiber optic probe having a core diameter of 9-10 mu m. The pulses have a wavelength of 1530 nm and a duration of 2 to 8 ns. Depending on liquid temperature, pulse duration, and the properties of the fiber end, the threshold pulse intensity (energy) required to activate boiling-up varied within a range of 0.01 to 30 MW/cm(2) (0.1 to 300 nJ). The obtained results demonstrate the feasibility of pulsed laser activation of boiling-up using the facilitated laser breakdown mechanism with an accompanying optodynamic impact at the solid/liquid interface. The possibility of reducing the energy required for activating the boiling-up of an initially cold liquid by combining the action of continuous and pulsed laser radiation has been revealed.
引用
收藏
页码:15 / 23
页数:9
相关论文
共 21 条
  • [21] The effects of the Ziemer LDV Z8 low-energy, high-frequency liquid optic interface system during femtosecond laser lens capsulotomy and fragmentation
    Williams, Geraint P.
    George, Benjamin L.
    Wong, Yoke R.
    Ang, Heng Pei
    Seah, Xin Yi
    Ita, Suzana B.
    Liu, Yu-Chi
    Tay, Shian C.
    Tan, Donald
    Mehta, Jodhbir S.
    INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, 2015, 56 (07)