{"artifact_id":"L1-013","layer":"L1","title":"Polarization Microscopy (Stokes / birefringence imaging)","domain":"Microscopy","sub_domain":"Polarization-sensitive optical imaging","physics_fingerprint":{"L_DAG":3.0,"title":"Polarization Microscopy (Stokes / birefringence imaging)","domain":"Microscopy","carrier":"photon","primitives":["L.polarizer","L.analyzer","int.temporal"],"sub_domain":"Polarization-sensitive optical imaging","noise_model":"gaussian","problem_class":"linear_inverse","solution_space":"stokes_triplet","difficulty_delta":3,"integration_axis":"temporal","sensing_mechanism":"polarization_stokes"},"observable_profile":{"metric":"PSNR_dB","regime":"Existence of the recovered stokes triplet 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 ~= 10); polarizer_alignment_error dominates the stability cliff; retarder_drift and the remaining mismatch parameters contribute higher-order bias terms. Additive gaussian thermal/electronic noise sets the irreducible data-fidelity floor, while mild Tikhonov or analytic inversion is sufficient at the nominal Omega point.","secondary":"SSIM"},"size_tiers":{"center_spec":{"omega":{"H":1024,"W":1024,"lambda_nm":550,"N_pol_states":4,"photon_count":1000,"retarder_drift":0.0,"polarizer_alignment_error":0.0},"input_format":"measurement_only","problem_class":"stokes_polarimetry","forward_operator":"stokes_polarimetry_forward","epsilon_fn_center":"30.0"},"omega_bounds":{"H":[256,4096],"W":[256,4096],"lambda_nm":[400,900],"N_pol_states":[3,16],"photon_count":[50,20000],"retarder_drift":[0.0,0.1],"polarizer_alignment_error":[0.0,0.05],"intrinsic_birefringence_background":[0.0,0.2]},"epsilon_bounds":{"psnr_db":[12.0,42.0]},"allowed_problem_classes":["stokes_polarimetry"],"allowed_omega_dimensions":["H","W","N_pol_states","lambda_nm","photon_count","polarizer_alignment_error","retarder_drift","polarizer_alignment_error","retarder_drift","intrinsic_birefringence_background"],"allowed_forward_operators":["stokes_polarimetry_forward"]},"hardness_fn":{"type":"epsilon_fn","delta":3,"kappa":200,"metric":"PSNR_dB"},"initiator_dataset":[{"name":"primary","weight":1.0,"ipfs_cid":null,"license_hash":null}],"status":"testnet","staked_pwm":0.0,"chain_hash":"0x292c76a6117a6e45e89cad4deccdf656e75696b3af1b876777256686c8e3163d","chain_tx_hash":"0xb3f658a839fe8570c99e066590e3c8c1ae1fd7e25a6fea11fea149220ca18649","chain_block":41554155}