CONVERSION ELEMENT

• Main Author: TOYOSHIMA NOBUAKI
• Format: Patent
• Language: English
• Published: 29.06.2006
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PROBLEM TO BE SOLVED: To provide a conversion element capable of stably, highly efficiently, and compactly coupling light to an input portion of an optical device constructed by integrating nanometer-sized elements. SOLUTION: The conversion element 101 is equipped with a transparent substrate 10, a plasmon waveguide 11 and a lens 12. The plasmon waveguide 11 is constructed by aligning metal nanodots having a thickness size of ≤100 nm and composed of a metal material such as gold, silver, and aluminum, on a surface of a side of the transparent substrate 10 at regular intervals. The lens 12 functions as an optical condensing system to condense a laser beam to a metal nanodot 13 on the end portion of the plasmon waveguide 11. COPYRIGHT: (C)2006,JPO&NCIPI