| 摘要 |
<p>A switching element is a semi-transparent metallic film (401, 502), having variable absorption and transmission depending on whether one or two optical signals (460, 501) and (470, 503) are present. The metallic film (401) can be illuminated from opposite sides in a direction perpendicular to its plane by two optical signals (460 and 470), or the metallic film (502) can be illuminated obliquely from opposite sides by two optical signals (501 and 503). In another embodiment, a metallic film (603) is located between two waveguides (601 and 602).</p> |
