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

The Korean Society of Mechanical Engineers (대한기계학회)
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Nanoparticle Focusing with A Novel Converging-Diverging-Type Aerodynamic Lens

수축-발산형 공기역학렌즈를 이용한 초미세 나노 입자의 집속

  • 이광승 (부산대학교 대학원 기계공학부) ;
  • 김송길 (부산대학교 대학원 기계공학부) ;
  • 이동근 (부산대학교 기계공학부)
  • Published : 2008.08.01
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Abstract

An orifice type of aerodynamic lens is generally used to focus nanoparticles. However, it is impossible to focus particles smaller than 10nm in air due to flow instability of fluid in a lens. In this study, we propose a new converging-diverging type of the aerodynamic lens capable of focusing particles of 5-50nm in air. Designing factors of the lens configurations is also extracted and explained in detail through a numerical simulation. It was demonstrated that the aerosols are delivered from the entrance to the downstream of the lens system with 90% transmission efficiency. The final beam diameters are shown to be more or less 1mm in the range of particle size.

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References

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