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K. Yamada, W. Watanabe, Y. Li and K. Itoh, “Multilevel Phase-Type Diffractive Lenses in Silica Glass Induced by Filamentation of Femtosecond Laser Pulses,” Optics Letters, Vol. 29, No. 16, 2004, pp. 1846-1848. doi:10.1364/OL.29.001846

has been cited by the following article:

• TITLE: Fabrication of Binary Diffractive Lenses and the Application to LED Lighting for Controlling Luminosity Distribution

  AUTHORS: Atsushi Motogaito, Kazumasa Hiramatsu

  KEYWORDS: Light Emitting Diode (LED); Luminosity Distribution; Binary Diffractive Lens; Electron Beam Lithography (EBL); Optical Film

  JOURNAL NAME: Optics and Photonics Journal, Vol.3 No.1, March 25, 2013

  ABSTRACT: We designed and fabricated two types of binary diffractive lenses using Electron beam lithography (EBL) on optical films film for controlling LED light. In the case of the binary diffractive convex lens with 2-mm focal length, it is possible to control the luminous intensity distribution. To improve the diffraction efficiency and realize a thin LED light source, the binary diffractive lenses with 100-μm-order focal length are effective. Furthermore we fabricated and characterized the binary diffractive concave lenses for application in LED lighting. It is found that white-light LEDs are strongly diffused by using the binary diffractive concave lenses.