Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

Experimental Analysis of Bubble Dynamics Induced by Pulsed-Laser Heating of Absorbing Liquid

흡광 액체의 펄스 레이저 가열에 의해 생성된 기포 거동의 실험적 해석

  • 장덕석 (포항공과대학교 대학원 기계공학과) ;
  • 홍종간 (포항공과대학교 대학원 기계공학과) ;
  • 좌성훈 (포항공과대학교 기계공학과) ;
  • 김동식 (삼성 MEMS Lab.)
  • Published : 2006.05.01
Download PDF
⟨ Previous Next ⟩

Abstract

The bubble dynamics induced by direct laser heating is experimentally analyzed as a first step to assess the technical feasibility of laser-based ink-jet technology. To understand the interaction between laser light and ink, the absorption spectrum is measured for various ink colors and concentrations. The hydrodynamics of laser-generated bubbles is examined by the laser-flash photography. When an Ar ion laser pulse (wavelength 488 nm) with an output power up to 600 mW is incident on the ink solution through a transparent window, a hemispherical bubble with a diameter up to ${\sim}100{\mu}m$ can be formed with a lifetime in a few tens of microsecond depending on the laser power and the focal-spot size. Parametric study has been performed to reveal the effect of laser pulse width, output power, ink concentration, and color on the bubble dynamics. The results show that the bubble generated by a laser pulse is largely similar to that produced by a thin-film heater. Consequently, the present work demonstrates the feasibility of developing a laser-actuated droplet generation mechanism for applications in ink-jet print heads. Furthermore, the results of this work indicate that the droplet generation frequency is likely to be further increased by optimizing the process parameters.

Keywords

References

  1. Maximovsky, S. N. and Radutsky, G A., 2000, US Patent 6,056,388
  2. Maxirnovsky, S. N. and Radutsky, G A., 2001, US Patent 6,231,162 B1
  3. Maximovsky, S. N. and Radutsky, G. A., 2001, US Patent 6.270,194 B1
  4. Maximovsky, S. N. and Radutsky, G. A., 2001, US Patent 6,330,857
  5. Nemoto, K., Matsuda, O. and Doi, M., 1998, US Patent 5,713,673
  6. Endo, I., Sato, Y., Saito, S., Nakagiri, T. and Ohno, S., 1988, US Patent 4,723,129
  7. Kohyama, M., 1991, US Patent 5,021,808
  8. Asai, A., Hara, T. and Endo, I., 1987, 'One-Dimensional Model of Bubble Growth and Liquid Flow in Bubble Jet Printers,' Jap. J. Appl. Phys., Vol. 26, pp.1794-1801 https://doi.org/10.1143/JJAP.26.1794
  9. Asai, A., 1991, 'Bubble Dynamics in Boiling Under High Heat Flux Pulse Heating,' Trans. ASME, J. Heat Transfer, Vol. 113, pp. 973-979 https://doi.org/10.1115/1.2911230
  10. Asai, A., 1989, 'Application of the Nucleation Theory to the Design of Bubble Jet Printers,' Jap. J. Appl. Phys., Vol. 28, pp. 909-915 https://doi.org/10.1143/JJAP.28.909
  11. Kim, D., Ye, M. and Grigoropoulos, C. P., 1998, 'Pulsed Laser Induced Ablation of Absorbing Liquids and Acoustic-Transient Generation,' Appl. Phys. A, Vol. 67, pp. 169-181 https://doi.org/10.1007/s003390050756
  12. Shangguan, H., Casperson, L. W., Paisley, D. L. and Prahl, S. A., 1998, 'Photographic Studies of Laser-Induced Bubble Formation in Absorbing Liquids and on Submerged Targets: Implications for Drug Delivery with Microsecond Laser Pulses,' Optical Eng., Vol. 37, pp.2217-2226 https://doi.org/10.1117/1.601738
  13. Turovets, I., Palanker, D., Kokotov, Y., Hemo, I. and Lewis, A., 1996, 'Dynamics of Cavitation Bubble Induced by 193 run ArF Excimer Laser in Concentrated Sodium Chloride Solutions,' J. Appl. Phys., Vol. 79, pp. 2689-2693 https://doi.org/10.1063/1.361140
  14. Tomita, Y., Shima, A. and Sato, K., 1990, 'Dynamic Behavior of Two-Laser-Induced Bubbles in Water,' Appl. Phys. Lett., Vol. 57, pp. 234-236 https://doi.org/10.1063/1.103726
  15. Ward, B. and Emmony, D. C., 1990, 'Conservation of Energy in the Oscillations of Laser-Induced Cavitation Bubbles,' J. Acoust. Soc. Am., Vol. 88, pp. 434-441 https://doi.org/10.1121/1.399921
  16. Vogel, A., Lauterborn, W. and Timm, R., 1989, 'Optical and Acoustic Investigations of the Dynamics of Laser-Produced Cavitation Bubbles Near a Solid Boundary,' J. Fluid Mech., Vol. 206, pp. 299-338 https://doi.org/10.1017/S0022112089002314
  17. Carey, V. P., 1992, Liquid-Vapor Phase-Change Phenomena, Hemisphere Pub. Corp., Washington, D.C. pp.I92-198
  18. Rayleigh, R., 1917, 'On the Pressure Developed in a Liquid During the Collapse of a Spherical Cavity,' Philos. Mag., Vol. 34, pp. 94-98 https://doi.org/10.1080/14786440808635681