Detailed observation of optical intensity and frequency signal transmission in random metal-dielectric film

The performances of a random-metal dielectric film composed of silver and fused silica balls were analyzed experimentally under optical AM and FM signal transmission. Optical AM and FM signals emitted from a 1550-nm-band laser diode were clearly transmitted in the random metal-dielectric film and through the optical near field generated on the film. Based on these signal transmission results, the feasibility of using this film to transmit optical AM and FM signals was experimentally confirmed in detail.

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