Reliable and efficient evaluation of the modulation amplitude is essential for achieving accurate spatial resolution in optical correlation-domain reflectometry (OCDR). Conventional measurement ...

Effective control of terahertz radiation requires fast and efficient modulators with a large modulation depth—a challenge that is often tackled by using metamaterials. Metamaterial-based active ...

Modulation is the act of translating some low-frequency or baseband signal (voice, music, and data) to a higher frequency. Why do we modulate signals? There are at least two reasons: to allow the ...