{"artifact_id":"L1-164","layer":"L1","title":"Near-Field Scanning Optical Microscopy (NSOM/SNOM)","domain":"Scanning Probe","sub_domain":"Sub-diffraction optical microscopy via near-field aperture","physics_fingerprint":{"L_DAG":3.8,"title":"Near-Field Scanning Optical Microscopy (NSOM/SNOM)","domain":"Scanning Probe","carrier":"photon","primitives":["L.aperture_near_field","L.evanescent_coupling","S.scan.raster","int.spatial"],"sub_domain":"Sub-diffraction optical microscopy via near-field aperture","noise_model":"shot_poisson","problem_class":"linear_inverse","solution_space":"2D_intensity","difficulty_delta":5,"integration_axis":"spatial","sensing_mechanism":"near_field_scanning_optical"},"observable_profile":{"metric":"PSNR_dB","regime":"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.","secondary":"SSIM"},"size_tiers":{"center_spec":{"omega":{"H":256,"W":256,"SNR_dB":25,"pixel_nm":10,"aperture_nm":50,"peak_photons":500,"optical_coupling":1.0,"vibrational_noise":0.0,"tip_sample_distance":5,"aperture_contamination":0.0},"input_format":"measurement_only","problem_class":"nsom","forward_operator":"nsom_forward","epsilon_fn_center":"22.0"},"omega_bounds":{"H":64,"W":64,"SNR_dB":[0.0,40.0],"pixel_nm":[1,100],"aperture_nm":[10,500],"peak_photons":[10,10000],"optical_coupling":[0.3,1.0],"vibrational_noise":[0.0,0.3],"tip_sample_distance":[1,50],"aperture_contamination":[0.0,0.5]},"epsilon_bounds":{"psnr_db":[5.0,40.0]},"allowed_problem_classes":["nsom"],"allowed_omega_dimensions":["H","W","aperture_nm","pixel_nm","peak_photons","tip_sample_distance","aperture_contamination","vibrational_noise","optical_coupling","SNR_dB","tip_sample_distance","aperture_contamination","vibrational_noise","optical_coupling"],"allowed_forward_operators":["nsom_forward"]},"hardness_fn":{"type":"epsilon_fn","delta":5,"kappa":360,"metric":"PSNR_dB"},"initiator_dataset":[{"name":"primary","weight":1.0,"ipfs_cid":null,"license_hash":null}],"status":"testnet","staked_pwm":0.0,"chain_hash":"0x99d8c798110fcc57cd10d3c2a763abb60f2c31edd3dc4e1f80295042b154c2df","chain_tx_hash":"0x46f6816e4e09df7fb3aa235f506bd68228aca9ca9f8ab6640fe53c8770914266","chain_block":41554243}