Skip to main content
SpringerLink
Log in

High-efficiency diffractive focusing deflecting element

  • Optical Information Technologies
  • Published:
Optoelectronics, Instrumentation and Data Processing Aims and scope

Abstract

The shape of the diffractive structure of a deflecting kinoform element designed for focusing high-power laser beams with a wavelength of 10.6 µm is studied. Formulas are derived for calculating light losses induced by tilting of the incident beam, diffraction, and technological blurring of the steep slope of the structure. It is demonstrated that the height of the structure varies from the minimum to the maximum value depending on the azimuthal angle. It is found that light loss induced by shadowing due to oblique incidence of the beam is rather low (0.6–1.3%), and that caused by diffraction is smaller by an order of magnitude and can be neglected. The light losses induced by technological blurring of the slope and by deviation of the structure height from the design value (in the case of violation of the azimuthal dependence) can exceed 10%.

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

Access this article

Log in via an institution

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

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. J. P. Rileey and F. N. Birkett, “A Reflection Kinoform for Use with CO2 Laser,” Opt. Acta 24 (10), 999–1009 (1977).

    Article  ADS  Google Scholar 

  2. A. V. Goncharskii, V. A. Danilov, V. V. Popov, et al., “Solving an Inverse Problem of Laser Beam Focusing to an Arbitrary Curve,” Dokl. Akad. Nauk SSSR 273, 605–608 (1983).

    ADS  Google Scholar 

  3. G. J. Swanson and W. B. Veldkamp, “Binary Lenses for Use at 10.6 Micrometers,” Opt. Eng. 24 (5), 791–795 (1985).

    Article  ADS  Google Scholar 

  4. M. C. Hutley, R. F. Stevens, and S. J. Wilson, “The Manufacture of Blazed Zone Plates for Use in the 10 µm Spectral Region,” Opt. Eng. 30 (7), 1005–1010 (1991).

    Article  ADS  Google Scholar 

  5. G. A. Lenkova, “Deflecting Focusing Kinoform,” Avtometriya, No. 6, 7–12 (1985).

    Google Scholar 

  6. V. Moreno, M. C. Hutley, and J. R. Tyrer, “The Manufacture of Blazed Oblique Zone Plates for Use at 10.6 µm,” in Proc. of the 2nd IEE Intern. Conf. Holographic Systems, Components and Applications, Bath, UK, September 11–13, 1989, pp. 76–79.

  7. B. Dubik, M. Zaionts, and E. Novak, “Focusing Kinoform Mirror,” Avtometriya, No. 2, 85–88 (1990).

    Google Scholar 

  8. A. G. Poleshchuk, V. P. Koronkevich, V. P. Korol’kov, et al., “Synthesis of Diffractive Optical Elements in a Polar Coordinate System: Manufacturing Errors and their Measurement,” Avtometriya, No. 6, 42–56 (1997).

    Google Scholar 

  9. G. A. Lenkova, “Effect of the Phase Profile Depth on the Intensity Distributions in the Orders of Diffraction of a Bifocal Element,” Avtometriya, No. 5, 16–24 (1995).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, pr. Akademika Koptyuga 1, Novosibirsk, 630090, Russia

    G. A. Lenkova

Authors
  1. G. A. Lenkova
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to G. A. Lenkova.

Additional information

Original Russian Text © G.A. Lenkova, 2015, published in Avtometriya, 2015, Vol. 51, No. 6, pp. 32–40.

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Lenkova, G.A. High-efficiency diffractive focusing deflecting element. Optoelectron.Instrument.Proc. 51, 560–567 (2015). https://doi.org/10.3103/S8756699015060059

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.3103/S8756699015060059

Keywords

Search

Navigation