From Red to Blue: Competition for Shorter Wavelengths

  • Hiroshi Shimizu
Part of the Advances in Japanese Business and Economics book series (AJBE, volume 21)


The previous chapter looked at the competition for shorter wavelengths in laser diodes for the recording of optical information. The wavelength was shortened from 780 nm for CDs to the 600-nm band. In this chapter, we will look at the competition for even shorter wavelengths from the 600-nm band (red) to the 400-nm band (blue).

Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Hiroshi Shimizu
    • 1
  1. 1.Faculty of CommerceWaseda UniversityTokyoJapan

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