Upconversion of glass ceramics and its application

Yoji Kawamoto; H. Uchino; J. Qiu; K. Miyauchi; N. Tokura; Y. Kitai; D. Shibata; Hidekazu Hashima; Akio Konishi; Y. Tanigami

doi:10.1117/12.517344

16 July 2003 Upconversion of glass ceramics and its application

Yoji Kawamoto, H. Uchino, J. Qiu, K. Miyauchi, N. Tokura, Y. Kitai, D. Shibata, Hidekazu Hashima, Akio Konishi, Y. Tanigami

Author Affiliations +

Proceedings Volume 5061, International Symposium on Photonic Glass (ISPG 2002); (2003) https://doi.org/10.1117/12.517344
Event: International Symposium on Photonic Glass, 2002, Shanghai, China

Abstract

Oxyfluoride glasses of the compositions of 50SiO₂•50PbF₂•(5 - x)GdF₃•xErF₃ and 50SiO₂•50PbF₂•(5 - y)GdF₃•0.1NdF₃•yYbF₃•0.1(Tb, Ho, Er or Tm)F₃ in molar ratio (x =0.3 - 5 and y = 0 - 5) were developed. The oxyfluoride glasses were heat-treated at their first crystallization temperatures. Consequently, the crystals of -PbF₂:(trivalent rare-earth ions) solid solutions uniformly precipitated in the scales of 15 20 nm in diameter in silicate glass matrices. These glass-ceramics were transparent to the naked eye. The glass-ceramics gave highly efficient upconversion luminescence based on the Tb³⁺, Ho³⁺, Er³⁺ or Tm³⁺ ion under 800 and/or 980 nm light excitation. These oxyfluoride glasses can be locally changed to glass-ceramics in the forms of dots, lines, letters, planes, etc. by irradiation of various lasers. The forms written by laser irradiation can be easily read from upconversion luminescence generated by the 800 and/or 980 nm laser illumination. Thus, the present oxyfluoride glasses can be applied to an optical memory device for specific information. Plates, fibers, thin films and coating-films in which the glass-powders are embedded in inorganic and/or organic polymers are considered as the shapes of oxyfluoride glasses that can be utilized as the device.

Citation Download Citation

Yoji Kawamoto, H. Uchino, J. Qiu, K. Miyauchi, N. Tokura, Y. Kitai, D. Shibata, Hidekazu Hashima, Akio Konishi, and Y. Tanigami "Upconversion of glass ceramics and its application", Proc. SPIE 5061, International Symposium on Photonic Glass (ISPG 2002), (16 July 2003); https://doi.org/10.1117/12.517344

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available