Skip to main content
Log in

Effect of laser beam focusing point on AFM measurements

  • Materials (Organic, Inorganic, Electronic, Thin Films)
  • Published:
Korean Journal of Chemical Engineering Aims and scope Submit manuscript

Abstract

The optical beam deflection method, which is used in AFM to obtain surface images, may distort the resulting image. The flexible and long cantilever is easily overdamped by the laser radiation pressure, resulting in steady deflection of the cantilever (<1 nm). This deflective force distorts the image and influences the force-distance (F-D) curve. The present study investigated the effect of laser radiation pressure on image distortion. As a proof-of-concept test, two grating samples (with step heights of 150 and 18 nm for TGX01 and TGZ01, respectively) were examined with an NSC36 series cantilever in air and water media.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Y. Kim, S. K. Kang, I. Choi, J. Lee and J. Yi, Appl. Phys. Lett., 88, 173121 (2006).

  2. I. Choi and J. Yi, Korean J. Chem. Eng., 25, 386 (2008).

    Article  CAS  Google Scholar 

  3. Y. Kim, I. Choi, S. K. Kang, J. Lee and J. Yi, Appl. Phys. Lett., 86, 073113 (2005).

  4. Y. Kim and J. Yi, J. Phys. Chem. B, 110, 20526 (2006).

  5. J. L. Hutter and J. Bechhoefer, Rev. Sci. Instrum., 64, 1868, (1993).

    Article  CAS  Google Scholar 

  6. R. E. Jones and D. P. Hart, Tribol. Int., 38, 335 (2005).

    Google Scholar 

  7. Y. Sun and J. H. L. Pang, Nanotechnology, 17, 933 (2006).

    Article  Google Scholar 

  8. S. Pal and A. K. Ghosh, Electronic Lett., 42, 580 (2006).

    Article  Google Scholar 

  9. D. Dragoman and M. Dragoman, Appl. Opt., 38, 6773 (1996).

    Article  Google Scholar 

  10. J. Kwon, J. Honh, Y.-S. Kim, D.-Y. Lee, S. Lee and S. Park, Rev. Sci. Instrum., 74, 4378 (2003).

    Article  CAS  Google Scholar 

  11. C. Argento and R. H. French, J. Appl. Phys., 80, 6081 (1996).

    Article  CAS  Google Scholar 

  12. H. D. Ackler, R.H. French and Y.-M. Chiang, J. Colloid Interf. Sci., 179, 460 (1996).

    Article  CAS  Google Scholar 

  13. R. W. Carpick, D. F. Ogletree and M. Salmeron, J. Colloid Interf. Sci., 211, 395 (1999).

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Younghun Kim.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kim, Y., Yang, Y.I., Choi, I. et al. Effect of laser beam focusing point on AFM measurements. Korean J. Chem. Eng. 26, 496–499 (2009). https://doi.org/10.1007/s11814-009-0084-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11814-009-0084-z

Key words

Navigation