Laser Manipulation of Bubbles and Evaluation of Its Optical Force
スポンサーリンク
概要
- 論文の詳細を見る
We have developed a laser trapping method to control the bubble position without contact. In this method, we use an empty laser cone obtained by focusing a laser ring. Scanning a laser beam circularly using a pair of galvano mirrors creates the laser ring. This method is adequate to trap a rising bubble because the potential barrier created by the light momentum change due to the reflection and refraction on the bubble surface exists only at the upper surface of the bubble. Bubbles of the order of 10 μm in diameter have been trapped and manipulated successfully using a dry objective lens as well as an immersion objective lens. The laser trapping using the dry objective lens with a large working distance has the advantage that the influence of the lens on the bubble is negligible, as a sufficiently large distance can be maintained between the lens surface and the trapped bubble. We have also evaluated the optical force acting on a bubble both experimentally and theoretically. Trajectories of rising bubbles are predicted by taking the optical force into account. It is shown that the optical force in the lateral direction is weaker than that in the axial direction.
- 一般社団法人日本機械学会の論文
- 2000-08-15
著者
-
YAMASAKI Shinji
Graduate School of Life and Environmental Sciences, Osaka Prefecture University
-
Yamasaki Shinji
Graduate School Of Engineering Osaka Prefecture University
-
TAKAHIRA Hiroyuki
Department of Energy Systems Engineering, Osaka Prefecture University
-
SHIRASAWA Manabu
Storage Subsystem Development Center, Hitachi, Ltd.
-
Shirasawa Manabu
Storage Subsystem Development Center Hitachi Ltd.
-
Takahira Hiroyuki
Department Of Energy Systems Engineering Osaka Prefecture University
関連論文
- Distribution of Virulence Genes Related to Adhesins and Toxins in Shiga Toxin-Producing Escherichia coli Strains Isolated from Healthy Cattle and Diarrheal Patients in Japan
- Evaluation of a PCR-Restriction Fragment Length Polymorphism (PCR-RFLP) Assay for Molecular Epidemiological Study of Shiga Toxin-Producing Escherichia coli
- Cytolethal Distending Toxin (Cdt)-Producing Escherichia coli Isolated from a Child with Bloody Diarrhea in Japan
- Candida albicans, Cryptococcus neoformans or Aspergillus fumigatus Induces an Antifungal Activity in Mouse Serum, which is Different from Transferrin
- The Potent Antibacterial Activity of Sitafloxacin against Fluoroquinolone-Resistant Clinical Isolates of Vibrio cholerae O1
- Laser Manipulation of Bubbles and Evaluation of Its Optical Force
- Evaluation of a Cytolethal Distending Toxin (cdt) Gene-Based Species-Specific Multiplex PCR Assay for the Identification of Campylobacter Strains Isolated from Poultry in Thailand
- Prevalence and characteristics of cytolethal distending toxin-producing Escherichia coli from children with diarrhea in Japan
- Dynamics of a Cluster of Bubbles in a Liquid : Theoretical Analysis
- Numerical Analysis of the Dynamics of Toroidal Bubbles Considering the Heat Transfer of Internal Gas
- Growth of Traveling Bubbles Near an Axisymmetric Body in a Potential Flow
- Numerical Investigation of Nonlinear Oscillations of Two Spherical Gas Bubbles in a Compressible Liquid
- Nonlinear Oscillations of a Cluster of Bubbles in a Sound Field : Bifurcation Structure
- Numerical investigations of shock-bubble interactions in mercury
- Thermal Effects of Internal Gas on the Oscillations of a Cluster of Bubbles
- A Cytolethal Distending Toxin Gene-Based Multiplex PCR Assay for Detection of Campylobacter spp. in Stool Specimens and Comparison with Culture Method
- Prevalence of Providencia Strains among Children with Diarrhea in Japan
- Stability of Microbubbles under Variation of a Pressure Field