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Optical Phased Array — Grating-Lobe Map (2D)

A 2D grating-lobe map of a silicon-photonic optical phased array: sweep pitch/wavelength ratio against steering angle on a canvas heatmap, computed directly from the array-factor sum, no 3D scene involved.

Materials Science2DAdvanced60 FPS📱 Mobile-adapted⇄ 3D version

The same one-dimensional optical phased array as the 3D version — 32 emitters, each driven by a phase computed from k0·x·sinθ, optionally rounded to a realistic number of phase-shifter bits — but read out as a 2D grating-lobe map instead of a 3D scene. The map's two axes are far-field angle and pitch-to-wavelength ratio, and every point on it is the true array-factor magnitude for that ratio, so the whole family of grating-lobe onset curves is visible at once instead of only the single ratio the sliders currently select.

⚙ Under the hood

The same 32-element silicon-photonic phased array as the 3D model, read out as a 2D grating-lobe map: a canvas heatmap plots the true array-factor magnitude across every pitch/wavelength ratio and far-field angle at once, so the whole grating-lobe onset curve is visible instead of one snapshot.

optical-phased-arraybeam-steeringgrating-lobesphase-quantizationphotonics2d-canvas

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install