Intensity of Diffraction of Laser Irradiating a Microparticle in Nanostructure Processing

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Traditional materials processing in the nanometer range using laser technology is very difficult with conventional optics due to the diffraction limit of the beam wavelength, a near-field technology has been developed to circumvent the diffraction limit, permitting the spot size to be reduced down to 20 nm. In most near-field techniques, this technology is achieved by placing a small aperture or microparticle between the sample and the light source. Therefore this paper will analytically investigate the profile of the intensity for diffraction of laser irradiating an aperture or microparticle in nanostructure processing. Classical electromagnetic wave theory is employed to calculate the intensity for diffraction of laser irradiating a microparticle or aperture. The results will reveal the differences between an aperture and micoparticle for diffraction of laser. The effect of laser parameters on the intensity and distribution of diffraction will be also discussed.

Info:

Periodical:

Advanced Materials Research (Volumes 83-86)

Edited by:

M. S. J. Hashmi, B. S. Yilbas and S. Naher

Pages:

1282-1287

Citation:

C. Y. Ho et al., "Intensity of Diffraction of Laser Irradiating a Microparticle in Nanostructure Processing", Advanced Materials Research, Vols. 83-86, pp. 1282-1287, 2010

Online since:

December 2009

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$38.00

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