PPC stands for various terms. Discover the full forms, meanings, and possible interpretations of PPC across different fields and industries.
"PPC" in the field of optics and photonics stands for "Passive-Phase Conjugation." This refers to a phenomenon or technique where an optical wave (often a laser beam) interacts with a special nonlinear optical medium in such a way that it generates a "phase-conjugate" replica of itself without the need for external pump beams or active control. This is in contrast to "active phase conjugation," which requires additional light sources. Other terms you might encounter are "self-pumped phase conjugation," "nonlinear phase conjugate mirror (passive mode)," or "wavefront reversal."
The core idea of phase conjugation is to create a beam that exactly retraces the path of an incident beam, effectively "undoing" any distortions or aberrations it picked up while traveling through a medium (like atmospheric turbulence or imperfections in optical components).
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