Recent content by rcc01

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    Graduate “Appropriate Modeling Approach for Thin Plasma Layers”

    I’m trying to understand how to model EM wave propagation through a very thin, low‑density plasma layer (micron‑scale thickness). The plasma frequency is well below optical frequencies, so the layer remains transparent. My questions are: Can such a thin plasma sheet be treated using the...
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    Graduate Feasibility of Micro‑Plasma–Induced Refractive‑Index Phase Modulation

    Andy, thanks again — your explanation helped clarify the connection between plasma permittivity and wave propagation. I have a follow‑up question: If the plasma layer is extremely thin (on the order of microns or less) and the electron density is low enough that the plasma frequency remains...
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    Graduate Feasibility of Micro‑Plasma–Induced Refractive‑Index Phase Modulation

    Thank you, Andy — this is very helpful. Yes, the structure I’m considering involves a very thin gas layer, so I was hoping the plasma could be treated as a perturbation or boundary layer rather than requiring a full inhomogeneous Maxwell treatment. Your suggestion about ionospheric propagation...
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    Graduate Feasibility of Micro‑Plasma–Induced Refractive‑Index Phase Modulation

    Hello everyone, I’m exploring a conceptual question involving the optical behavior of micro‑plasmas in thin, sealed cavities. The idea is to use a very thin low‑pressure gas layer between two transparent substrates. When an electric field is applied, the gas forms a micro‑plasma confined within...
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    Retired Engineer Investigating Plasma‑Based Optical Phase Control

    ? Hello everyone,My name is Ronald Coleman, and I’m a retired engineer and inventor based in Temescal Valley, California. I spent many years working in advanced imaging and materials environments, and I’m now focused on exploring a new optical concept involving thin‑film structures and...