Skip to main content
Log in

Observation of Mode Patterns for High Purity Mode Operation in the Submillimeter Wave Gyrotron FU VA

  • Published:
International Journal of Infrared and Millimeter Waves Aims and scope Submit manuscript

Abstract

Operation tests of a cavity designed for high purity mode operation of the submillimeter wave gyrotron FU VA has been carried out successfully. The observed emission patterns of several cavity modes appear very pure and are compared with calculated results. High purity mode operation has the advantage of making the conversion to Gaussian-like beams more efficient.

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. T. Idehara, I. Ogawa, S. Mitsudo, M. Pereyaslavets, N. Nishida and K. Yoshida, Development of frequency tunable, medium power gyrotrons (Gyrotron FU Series) as submillimeter wave radiation sources, IEEE Trans. Plasma Sci. 27, 340–353, 1999.

    Google Scholar 

  2. D. Wagner, M. Thumm, G. Gantenbein, W. Kasparek and T. Idehara, Analysis of a complete gyrotron oscillator using the scattering matrix description, Int. J. Infrared and Millimeter Waves 19, 185–194, 1998.

    Google Scholar 

  3. T. Idehara, T. Tatsukawa, H. Tanabe, S. Matsumoto, K. Kunieda, K. Memmi and T. Kanemaki, High-frequency, step tunable, cyclotron harmonic gyrotrons, Phys. Fluids B3, 1766–1772, 1991.

    Google Scholar 

  4. K.D. Hong, G.F. Brand and T. Idehara, A 150 600 GHz step tunable gyrotron, J. Appl. Phys. 74, 5250–5258, 1993.

    Google Scholar 

  5. T. Idehara, N. Nishida, K. Yoshida, I. Ogawa, T. Tatsukawa, D. Wagner, G. Gantenbein. W. Kasparek and M. Thumm, High frequency and high mode purity operations of Gyrotron FU IVA, Int. J. Infrared and Millimeter Waves 19, 919–930, 1998.

    Google Scholar 

  6. I. Ogawa, T. Idehara, S. Sabchevski and W. Kasparek, Design of a system converting an output radiation of frequency tunable gyrotron into a Gaussian beam, Int. J. Electronics, 87, 1385–1400, 2000.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Idehara, T., Ogawa, I., Maeda, S. et al. Observation of Mode Patterns for High Purity Mode Operation in the Submillimeter Wave Gyrotron FU VA. International Journal of Infrared and Millimeter Waves 23, 1287–1295 (2002). https://doi.org/10.1023/A:1020289307143

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1020289307143

Navigation