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Quantum Dot Multiplexed Barcode Imaging

Interactive simulator of quantum-dot spectral barcoding: encode microbeads with combinatorial ratios of QD emission colors, then watch a noisy optical detector decode each barcode and see classification accuracy degrade as code density rises.

Quantum Physics3DAdvanced60 FPS📱 Mobile-adapted

Details

CategoryQuantum Physics

RenderingThree.js · WebGL

DifficultyAdvanced

Target FPS60

ControlsSet the number of spectral channels (2-4) and intensity levels per channel (2-5) to grow the combinatorial code space, drag the detector noise/crosstalk slider to induce misreads, and use New Code Set / Rescan Now to re-encode beads or trigger an immediate re-decode.

quantum dotsspectral barcodingmultiplexed imagingoptical codingbioassaynanophotonics

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Real multiplexed diagnostic assays encode information optically: a microbead is loaded with a precise combinatorial ratio of several quantum-dot emission colors, turning it into a spectral barcode that a detector can read alongside thousands of others in one pool. This simulator renders a 3D field of such beads, each with a genuine combinatorial code drawn from L intensity levels across C spectral channels (capacity L^C − 1), and runs a live nearest-code decoder against every bead's noisy detector reading. Adjust the channel count and level count to grow the code space, dial in detector noise to model photon shot noise and spectral crosstalk between adjacent quantum-dot emission peaks, and watch decode accuracy fall as codes pack closer together in intensity space than the noise floor allows.

⚙ Under the hood

Encode microbeads with combinatorial ratios of quantum-dot emission colors and watch a noisy optical detector decode each spectral barcode in real time, with accuracy falling as code density outgrows the noise floor.

quantum dotsspectral barcodingmultiplexed imagingoptical codingbioassaynanophotonics

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install