{"doi":"10.1364/ol.467970","title":"Nearly degenerate two-color impulsive coherent Raman hyperspectral imaging","abstract":"Impulsive stimulated Raman scattering (ISRS) is a robust technique for studying low frequency (<300 cm −1 ) Raman vibrational modes, but ISRS has faced difficulty in translation to an imaging modality. A primary challenge is the separation of the pump and probe pulses. Here we introduce and demonstrate a simple strategy for ISRS spectroscopy and hyperspectral imaging that uses complementary steep edge spectral filters to separate the probe beam detection from the pump and enables simple ISRS microscopy with a single-color ultrafast laser source. ISRS spectra are obtained that span from the fingerprint region down to <50 cm −1 vibrational modes. Hyperspectral imaging and polarization-dependent Raman spectra are also demonstrated.","journal":"Optics Letters","year":2022,"id":277019,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":8,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9612,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2022-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":948003,"name":"Siddarth Shivkumar","orcid":"0000-0001-9657-9755","position":1,"is_corresponding":false},{"id":422266,"name":"Jeffrey J. Field","orcid":"0000-0003-3323-6282","position":2,"is_corresponding":false},{"id":948004,"name":"Jesse W. Wilson","orcid":"0000-0002-2237-9408","position":3,"is_corresponding":false},{"id":488037,"name":"Hervé Rigneault","orcid":"0000-0001-6007-0631","position":4,"is_corresponding":false},{"id":422267,"name":"Randy A. Bartels","orcid":"0000-0003-0530-0435","position":5,"is_corresponding":false},{"id":948002,"name":"David R. Smith","orcid":"0000-0001-9093-7056","position":0,"is_corresponding":true}],"reference_count":23,"raw_metadata":null,"created_at":"2026-07-19T00:28:34.768552Z","pmid":"37219129","pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}