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Nonlinear optical materials and process for producing the same
| Details |
Inventors: Ando, Masanori; Kadono, Kohei; Haruta, Masatake; Sakaguchi, Toru; Miya, Masaru;
Assignee: Agency of Industrial Science & Technology (Tokyo, JP)
Primary Examiner: Speer; Timothy
Assistant Examiner:
Attorney, Agent or Firm: Nikaido Marmelstein Murray & Oram, LLP
There are provided a third-order nonlinear optical material comprising a film formed on the surface of a transparent substrate and consisting essentially of an oxide of a metal selected from the group consisting of V, Cr, Mn, Fe, Co, Ni and Cu; and a third-order nonlinear optical material of the type as described above wherein the film additionally contains a metal selected from the group consisting of Au, Ag and Cu in the form of particles dispersed therein and having a particle size of at most 500 nm. The present invention also provides a process for producing a third-order nonlinear optical material by dispersing and depositing in a transparent matrix an oxide of a metal selected from the group consisting of V, Cr, Mn, Fe, Co, Ni and Cu in the form of particles having a particle size of at most 500 nm; a process of the type as described above wherein a metal selected from the group consisting of Au, Ag and Cu in the form of particles having a particle size of at most 500 nm is simultaneously dispersed and deposited in a transparent matrix. The present invention further provides third-order nonlinear optical materials produced according to the process of the present invention. |
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DETAILED DESCRIPTION The present invention provides a third-order nonlinear optical material comprising a film which is formed on the surface of a transparent substrate and which consists essentially of an oxide of a metal selected from the group consisting of V, Cr, Mn, Fe, Co, Ni and Cu.
The present invention also provides a third-order nonlinear optical material of the type as described above, wherein said film additionally contains a metal selected from the group consisting of Au, Ag and Cu in the form of particles dispersed therein and having a particle diameter of at most 500 nm.
The present invention further provides a process for producing a third-order nonlinear optical material which comprises dispersing and depositing in a transparent matrix an oxide of a metal selected from the group consisting of V, Cr, Mn, Fe, Co, Ni and Cu in the form of particles having a particle diameter of at most 500 nm.
The present invention further provides a process of the type as described above for producing a third-order nonlinear optical material, wherein a metal selected from the group consisting of Au, Ag and Cu is simultaneously dispersed and deposited in the form of particles having a particle size of at most 500 nm in the transparent matrix.
The present invention still further provides a third-order nonlinear optical material produced according to any of the processes of the type as described above.
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