P
Physics World Model
← All principles

Near-Field Scanning Optical Microscopy (NSOM/SNOM) L1-164

Scanning ProbeSub-diffraction optical microscopy via near-field apertureδ=5 · challengingL_DAG = 3.8📋 Stub — not mineable
📋

Unclaimed Principle — open for contribution

This Principle is declared in the catalog but has no reference solver, no pinned dataset, and is not registered on-chain. There is no reward pool. Submitting a cert against this Principle today will record the cert for reproducibility but pay zero PWM.

To claim it as a Bounty #7 contribution: open a PR adding (1) a reference solver, (2) ≥1 dataset pinned to IPFS, (3) updates to the L3 manifest with dataset CIDs. After verifier-agent triple-review, the founders' 3-of-5 multisig signs PWMRegistry.register() and the Principle becomes mineable.

Forward model E

Near-Field Scanning Optical Microscopy (NSOM/SNOM): near field scanning optical produces the measurement through a 4-node primitive DAG L.aperture_near_field -> L.evanescent_coupling -> S.scan.raster -> int.spatial, with spatially-projected accumulation and photon-shot-noise-limited (Poisson counting). Recovery is posed as a linear inverse problem that inverts the forward operator to estimate the scene-side 2D intensity. Difficulty tier delta=5 with effective condition number kappa_eff~18; calibration-level mismatch (tip_sample_distance, aperture_contamination, vibrational_noise) sets the accuracy floor at the Omega boundary. See the forward_model field for the closed-form imaging equation.

L-DAG

L.aperture_near_field -> L.evanescent_coupling -> S.scan.raster -> int.spatial
L.aperture_near_fieldL.evanescent_couplingS.scan.rasterint.spatial

Well-posedness W

Existence:
true
Uniqueness:
true
Stability:
conditional
κ:
360

Existence of the recovered 2D intensity is guaranteed within the declared Omega bounds. Uniqueness holds on the measurement-supported subspace; out-of-support modes are controlled by the declared priors. Stability is moderately conditioned (kappa_eff ~= 18); tip_sample_distance dominates the stability cliff; aperture_contamination and the remaining mismatch parameters contribute higher-order bias terms. Photon-shot-noise-limited (poisson counting) sets the irreducible data-fidelity floor, while TV / wavelet-sparsity / deep priors stabilise recovery at the ill-conditioned end of Omega.

Solvability C

Solver class:
linear-operator + convex optimisation [Deconv-NSOM, TV-ADMM-NSOM] | linear-operator + deep neural prior [NSOM-Net]
Convergence rate q:
2
Complexity:
O(H * W * log(...)) per iteration; learned variants: O(H W Z * F_theta_cost) per forward pass

Specs (0)

No L2 specs registered yet for this principle.