Depth-Dependent Optical Stiffness Toward Water-Air Interface

  • Authors

    • M. S. Mat Yeng
    • S. K. Ayop
    • I. R. Mustapa
    2018-11-30
    https://doi.org/10.14419/ijet.v7i4.30.22019
  • Depth Dependent, Optical Stiffness, Spatial Distribution, Water-Air Interface

  • This research attempted to quantify the optical stiffness of trapped polystyrene bead toward water-air interface. The optical tweezers with 975 nm wavelength was used to optically trap a single 3 micron diameter of bead in a water-contained cell with air exposed top water surface. The optical stiffness was justified on effective radius (r*) of the bead lateral spatial distribution. The scattered light signals due to the trapped bead at different laser focus height from the bottom glass-water interface (less than 20 µm) and laser trapping powers (1.7 mW to 7.5 mW) were analyzed to investigate the r* profile. It was found that within our experimental condition, r* was independent of focus height at fixed power and exponentially decay with respect to laser power at fixed focus height.

  • References

    1. [1] Jiao G & Zhang R, “Modeling of micropipette aspiration and optical tweezers stretching of erythrocytes with or without Malaria parasiteâ€, Theor. Appl. Mech. Lett., Vol. 3, No. 3, (2013), pp. 61–66.

      [2] Conteduca D, Dell’Olio F, Ciminelli C, Krauss TF & Armenise MN, “Design of a high-performance optical tweezer for nanoparticle trappingâ€, Appl. Phys. A Mater. Sci. Process., Vol. 122, No. 4, (2016), pp. 1–6.

      [3] Deufel C & Wang MD, “Detection of forces and displacements along the axial direction in an optical trap,†Biophys. J., Vol. 90, No. 2, (2006), pp. 657–667.

      [4] Aziz WNSW, Ayop SK & Riyanto S, “The potential of optical tweezer (OT) for viscoelastivity measurement of nanocellulose solution,†J. Teknol., Vol. 74, No. 8, (2015), pp. 45–48.

      [5] Neuman KC & S. M. Block, “Optical trapping,†Rev. Sci. Instrum., Vol. 75, No. 9, (2004), pp. 2787–2809.

      [6] Gutiérrez-Campos RCA, “Optical trapping of particles at the air / water interface for studies in Langmuir monolayersâ€, Rev. Mex. física, Vol. 56, No. 4, (2010), pp. 339–347.

      [7] Baek JH, Hwang S & Lee YG, “Trap stiffness in optical tweezersâ€, Asian Symp. Precis. Eng. Nanotechnol., Vol. 685, (2007), pp. 1100.

      [8] Dasgupta R, Ahlawat S & Gupta PK, “Trapping of micron-sized objects at a liquid-air interfaceâ€, J. Opt. A Pure Appl. Opt., Vol. 9, No. 8, (2007), pp. S189–S195.

      [9] Zhong M, Wang Z & Li Y, “Laser-accelerated self-assembly of colloidal particles at the water – air interfaceâ€, Chinese Opt. Lett., Vol. 15, No. 5, (2017), pp. 1–5.

      [10] Hamid MY & Ayop SK, “LabVIEW-Based Software for Optical Stiffness Determination Using Boltzmann Statistics, Equipartition Theorem and Power Spectral Density Methodsâ€, Adv. Sci. Lett., Vol. 4, No. 2, (2011), pp. 400–407.

      [11] Vermeulen KC, Wuite GJL, Stienen GJM & Schmidt CF, “Optical trap stiffness in the presence and absence of spherical aberrationsâ€, Appl. Opt., Vol. 45, No. 8, (2006), pp. 1812–1819.

      [12] Neuman KC, Abbondanzieri EA & Block SM, “Measurement of the effective focal shift in an optical trapâ€, Opt. Lett., Vol. 30, No. 11, (2005), pp. 1318.

      [13] Mas J, Farré A, Cuadros J, Juvells I & Carnicer A, “Understanding optical trapping phenomena: A simulation for undergraduatesâ€, IEEE Trans. Educ., Vol. 54, No. 1, (2011), pp. 133–140.

      [14] Hamid Y, Ayop SK, Wan Aziz WNS & Munajat Y, “Spatial Distribution of an Optically Trapped Bead in Waterâ€, Bul. Opt. 2016, Vol. 2016, No. 2, (2016), pp. 29–36.

      [15] Nor W, Wan S, Kadri S, Yunus M & Munajat Y, “Simple Determination of the Stiffness of an Optical Trap Using Video Microscopy and Particle Tracking,†Bul. Opt. 2016, Vol. 1, No. 2, (2016), pp. 1–6.

      [16] DrobczyÅ„ski D, Du-Szachniewicz S, Symonowicz K, Glogocka K, “Spectral analysis by a video camera in a holographic optical tweezers setupâ€, Opt. Appl., Vol. 43, No. 4, (2013), pp. 739–746.

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  • How to Cite

    Yeng, M. S. M., Ayop, S. K., & Mustapa, I. R. (2018). Depth-Dependent Optical Stiffness Toward Water-Air Interface. International Journal of Engineering & Technology, 7(4.30), 80-84. https://doi.org/10.14419/ijet.v7i4.30.22019