| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wavelength converter with which the device is prevented from being complicated and S/N from being deteriorated, and a detector equipped with the wavelength converter. <P>SOLUTION: The wavelength converter 1 has a nonlinear meta-material 10 on which signal light (with a wavelength of λin) and pump light (with a wavelength of λp) with a frequency different from that of the signal light are made incident and the frequency of the signal light is subjected to sum frequency conversion. The signal light and the pump light are made incident on the nonlinear meta-material 10 in propagating directions opposite to each other. The nonlinear meta-material 10 makes a direction of the phase velocity at the frequency of the pump light out of the signal light, the pump light and the wavelength-converted signal light opposite to a propagation direction, and makes the direction of the phase velocity of the pump light identical to the direction of the phase velocity of the signal light. <P>COPYRIGHT: (C)2009,JPO&INPIT |
