{"id":"https://openalex.org/W4417028131","doi":"https://doi.org/10.48550/arxiv.2512.03344","title":"Optical feedback induced irregular and chaotic dynamics in terahertz quantum cascade laser combs","display_name":"Optical feedback induced irregular and chaotic dynamics in terahertz quantum cascade laser combs","publication_year":2025,"publication_date":"2025-12-03","ids":{"openalex":"https://openalex.org/W4417028131","doi":"https://doi.org/10.48550/arxiv.2512.03344"},"language":"en","primary_location":{"id":"pmh:oai:arXiv.org:2512.03344","doi":null,"is_oa":true,"landing_page_url":"http://arxiv.org/abs/2512.03344","pdf_url":"https://arxiv.org/pdf/2512.03344","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"volume":null,"type":"preprint","indexed_in":["arxiv","datacite","doaj"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2512.03344","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5048027858","display_name":"Xiaoqiong Qi","orcid":"https://orcid.org/0000-0003-3354-535X","observed_orcids":["https://orcid.org/0000-0003-3354-535X"]},"institutions":[{"id":"https://openalex.org/I165143802","display_name":"The University of Queensland","ror":"https://ror.org/00rqy9422","country_code":"AU","type":"education","lineage":["https://openalex.org/I165143802"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Qi, Xiaoqiong","raw_affiliation_strings":[") School of Electrical Engineering and Computer Science , The University of Queensland , Brisbane , QLD 4072 Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":") School of Electrical Engineering and Computer Science , The University of Queensland , Brisbane , QLD 4072 Australia","institution_ids":["https://openalex.org/I165143802"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004456484","display_name":"Carlo Silvestri","orcid":"https://orcid.org/0000-0002-9564-708X","observed_orcids":["https://orcid.org/0000-0002-9564-708X","https://orcid.org/0000-0002-7142-0964"]},"institutions":[{"id":"https://openalex.org/I129604602","display_name":"The University of Sydney","ror":"https://ror.org/0384j8v12","country_code":"AU","type":"education","lineage":["https://openalex.org/I129604602"]},{"id":"https://openalex.org/I165143802","display_name":"The University of Queensland","ror":"https://ror.org/00rqy9422","country_code":"AU","type":"education","lineage":["https://openalex.org/I165143802"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Silvestri, Carlo","raw_affiliation_strings":[") Institute of Photonics and Optical Science (IPOS) , School of Physics , The University of Sydney , NSW 2006 , Australia",") School of Electrical Engineering and Computer Science , The University of Queensland , Brisbane , QLD 4072 Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":") Institute of Photonics and Optical Science (IPOS) , School of Physics , The University of Sydney , NSW 2006 , Australia","institution_ids":["https://openalex.org/I129604602"]},{"raw_affiliation_string":") School of Electrical Engineering and Computer Science , The University of Queensland , Brisbane , QLD 4072 Australia","institution_ids":["https://openalex.org/I165143802"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5089135298","display_name":"Thomas Taimre","orcid":"https://orcid.org/0000-0003-4470-7668","observed_orcids":["https://orcid.org/0000-0003-4470-7668"]},"institutions":[{"id":"https://openalex.org/I165143802","display_name":"The University of Queensland","ror":"https://ror.org/00rqy9422","country_code":"AU","type":"education","lineage":["https://openalex.org/I165143802"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Taimre, Thomas","raw_affiliation_strings":[") School of Mathematics and Physics , The University of Queensland , Brisbane , QLD 4072 Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":") School of Mathematics and Physics , The University of Queensland , Brisbane , QLD 4072 Australia","institution_ids":["https://openalex.org/I165143802"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5060085835","display_name":"Aleksandar D. Raki\u0107","orcid":"https://orcid.org/0000-0002-4615-2240","observed_orcids":["https://orcid.org/0000-0002-4615-2240"]},"institutions":[{"id":"https://openalex.org/I165143802","display_name":"The University of Queensland","ror":"https://ror.org/00rqy9422","country_code":"AU","type":"education","lineage":["https://openalex.org/I165143802"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Rakic, Aleksandar D.","raw_affiliation_strings":[") School of Electrical Engineering and Computer Science , The University of Queensland , Brisbane , QLD 4072 Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":") School of Electrical Engineering and Computer Science , The University of Queensland , Brisbane , QLD 4072 Australia","institution_ids":["https://openalex.org/I165143802"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":1,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11429","display_name":"Semiconductor Lasers and Optical Devices","score":0.9463000297546387,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11429","display_name":"Semiconductor Lasers and Optical Devices","score":0.9463000297546387,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10988","display_name":"Advanced Fiber Laser Technologies","score":0.01769999973475933,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11111","display_name":"Spectroscopy and Laser Applications","score":0.015200000256299973,"subfield":{"id":"https://openalex.org/subfields/1607","display_name":"Spectroscopy"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/optical-feedback","display_name":"optical feedback","score":0.9179999828338623},{"id":"https://openalex.org/keywords/terahertz-quantum-cascade-lasers","display_name":"terahertz quantum cascade lasers","score":0.8759999871253967},{"id":"https://openalex.org/keywords/frequency-comb","display_name":"frequency combs","score":0.8809999823570251},{"id":"https://openalex.org/keywords/chaotic-dynamics","display_name":"chaotic dynamics","score":0.8980000019073486},{"id":"https://openalex.org/keywords/routes-to-chaos","display_name":"route to chaos","score":0.8730000257492065},{"id":"https://openalex.org/keywords/bifurcation","display_name":"bifurcation","score":0.871999979019165},{"id":"https://openalex.org/keywords/maxwell-bloch-equations","display_name":"Maxwell-Bloch equations","score":0.8690000176429749},{"id":"https://openalex.org/keywords/linewidth-enhancement-factor","display_name":"linewidth enhancement factor","score":0.9290000200271606},{"id":"https://openalex.org/keywords/lyapunov-exponents","display_name":"Lyapunov exponents","score":0.9869999885559082},{"id":"https://openalex.org/keywords/nonlinear-laser-dynamics","display_name":"nonlinear laser dynamics","score":0.671999990940094},{"id":"https://openalex.org/keywords/chaotic-light","display_name":"chaotic light","score":0.7350000143051147}],"concepts":[{"id":"https://openalex.org/C107816215","wikidata":"https://www.wikidata.org/wiki/Q647887","display_name":"Terahertz radiation","level":2,"score":0.8389000296592712},{"id":"https://openalex.org/C2777052490","wikidata":"https://www.wikidata.org/wiki/Q5072826","display_name":"Chaotic","level":2,"score":0.755299985408783},{"id":"https://openalex.org/C34146451","wikidata":"https://www.wikidata.org/wiki/Q5048094","display_name":"Cascade","level":2,"score":0.713699996471405},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.6815999746322632},{"id":"https://openalex.org/C121477167","wikidata":"https://www.wikidata.org/wiki/Q17154002","display_name":"Semiconductor laser theory","level":3,"score":0.6179999709129333},{"id":"https://openalex.org/C2779554537","wikidata":"https://www.wikidata.org/wiki/Q5072815","display_name":"Optical chaos","level":4,"score":0.546500027179718},{"id":"https://openalex.org/C520434653","wikidata":"https://www.wikidata.org/wiki/Q38867","display_name":"Laser","level":2,"score":0.5336999893188477},{"id":"https://openalex.org/C142181693","wikidata":"https://www.wikidata.org/wiki/Q6493080","display_name":"Laser linewidth","level":3,"score":0.4327999949455261},{"id":"https://openalex.org/C126701199","wikidata":"https://www.wikidata.org/wiki/Q264224","display_name":"Complex dynamics","level":2,"score":0.4239000082015991},{"id":"https://openalex.org/C191544260","wikidata":"https://www.wikidata.org/wiki/Q1238630","display_name":"Lyapunov exponent","level":3,"score":0.39969998598098755},{"id":"https://openalex.org/C84114770","wikidata":"https://www.wikidata.org/wiki/Q46344","display_name":"Quantum","level":2,"score":0.3880999982357025},{"id":"https://openalex.org/C145912823","wikidata":"https://www.wikidata.org/wiki/Q113558","display_name":"Dynamics (music)","level":2,"score":0.38119998574256897},{"id":"https://openalex.org/C2781349735","wikidata":"https://www.wikidata.org/wiki/Q4904824","display_name":"Bifurcation","level":3,"score":0.3747999966144562},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.3628999888896942},{"id":"https://openalex.org/C158622935","wikidata":"https://www.wikidata.org/wiki/Q660848","display_name":"Nonlinear system","level":2,"score":0.3508000075817108},{"id":"https://openalex.org/C186886427","wikidata":"https://www.wikidata.org/wiki/Q5441213","display_name":"Feedback loop","level":2,"score":0.3395000100135803},{"id":"https://openalex.org/C509933004","wikidata":"https://www.wikidata.org/wiki/Q194163","display_name":"Broadband","level":2,"score":0.32919999957084656},{"id":"https://openalex.org/C927094","wikidata":"https://www.wikidata.org/wiki/Q285877","display_name":"Distributed feedback laser","level":3,"score":0.32710000872612},{"id":"https://openalex.org/C18762648","wikidata":"https://www.wikidata.org/wiki/Q42213","display_name":"Work (physics)","level":2,"score":0.32030001282691956},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.31150001287460327},{"id":"https://openalex.org/C77887725","wikidata":"https://www.wikidata.org/wiki/Q17157147","display_name":"Terahertz spectroscopy and technology","level":3,"score":0.29019999504089355},{"id":"https://openalex.org/C108225325","wikidata":"https://www.wikidata.org/wiki/Q11456","display_name":"Semiconductor","level":2,"score":0.29019999504089355},{"id":"https://openalex.org/C121864883","wikidata":"https://www.wikidata.org/wiki/Q677916","display_name":"Statistical physics","level":1,"score":0.28929999470710754},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.2856000065803528},{"id":"https://openalex.org/C2776957298","wikidata":"https://www.wikidata.org/wiki/Q1407411","display_name":"Quantum cascade laser","level":3,"score":0.28110000491142273},{"id":"https://openalex.org/C136269434","wikidata":"https://www.wikidata.org/wiki/Q1502341","display_name":"Quantum chaos","level":4,"score":0.2736000120639801},{"id":"https://openalex.org/C93586867","wikidata":"https://www.wikidata.org/wiki/Q62527","display_name":"Negative feedback","level":3,"score":0.27250000834465027},{"id":"https://openalex.org/C55649039","wikidata":"https://www.wikidata.org/wiki/Q902618","display_name":"Floquet theory","level":3,"score":0.26190000772476196},{"id":"https://openalex.org/C20788544","wikidata":"https://www.wikidata.org/wiki/Q467054","display_name":"Photonics","level":2,"score":0.26109999418258667},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.25279998779296875},{"id":"https://openalex.org/C170563983","wikidata":"https://www.wikidata.org/wiki/Q17148761","display_name":"Terahertz gap","level":5,"score":0.25220000743865967}],"mesh":[],"locations_count":4,"locations":[{"id":"pmh:oai:arXiv.org:2512.03344","doi":null,"is_oa":true,"landing_page_url":"http://arxiv.org/abs/2512.03344","pdf_url":"https://arxiv.org/pdf/2512.03344","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},{"id":"pmh:oai:doaj.org/article:c91c354ba89b45ad93bf4048c12e5d4d","doi":null,"is_oa":true,"landing_page_url":"https://doaj.org/article/c91c354ba89b45ad93bf4048c12e5d4d","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"APL Photonics, Vol 11, Iss 4, Pp - (2026)","raw_type":"article"},{"id":"pmh:oai:figshare.com:article/30803402","doi":null,"is_oa":false,"landing_page_url":"https://figshare.com/articles/preprint/Optical_feedback_induced_irregular_and_chaotic_dynamics_in_terahertz_quantum_cascade_laser_combs/30803402","pdf_url":null,"source":{"id":"https://openalex.org/S4377196282","display_name":"Figshare","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I4210132348","host_organization_name":"Figshare (United Kingdom)","host_organization_lineage":["https://openalex.org/I4210132348"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Text"},{"id":"doi:10.48550/arxiv.2512.03344","doi":"https://doi.org/10.48550/arxiv.2512.03344","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2512.03344","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2512.03344","doi":null,"is_oa":true,"landing_page_url":"http://arxiv.org/abs/2512.03344","pdf_url":"https://arxiv.org/pdf/2512.03344","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[],"sustainable_development_goals_aurora":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4417028131.pdf","grobid_xml":"https://content.openalex.org/works/W4417028131.grobid-xml"},"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"In":[0,49],"this":[1,148],"work,":[2],"we":[3,38,87],"systematically":[4],"investigate":[5],"the":[6,22,44,50,55,65,81,104,134,151,173],"optical":[7,90,166],"feedback":[8,46,52,62,67,71,83,91],"dynamics":[9,72,157,177],"of":[10,155,175,189],"terahertz":[11],"(THz)":[12],"frequency":[13,56,113],"combs":[14],"generated":[15],"from":[16,29],"quantum":[17],"cascade":[18],"lasers":[19],"(QCLs)":[20],"using":[21],"effective":[23],"semiconductor":[24],"Maxwell-Bloch":[25],"equations":[26],"(ESMBEs).":[27],"Starting":[28],"a":[30,111],"free-running":[31,105],"comb":[32,57],"state":[33],"at":[34,97],"low":[35],"bias":[36,99],"(1.3Ith),":[37],"identify":[39],"clear":[40],"bifurcation":[41],"routes":[42,159],"as":[43,61,143],"external":[45,146],"is":[47,109],"increased.":[48],"weak":[51,82],"regime":[53,68],"(C<1),":[54],"operation":[58],"remains":[59],"stable;":[60],"increases":[63],"to":[64,130,160],"moderate":[66],"(113.86),":[69],"complex":[70],"re-emerged":[73],"but":[74,181],"with":[75,80],"significantly":[76],"reduced":[77],"complexity":[78],"compared":[79],"regime.":[84],"More":[85],"interestingly,":[86],"show":[88],"that":[89],"can":[92],"induce":[93],"chaotic":[94,117,156,190],"THz":[95,139,163,179,193],"emission":[96],"higher":[98],"current":[100],"conditions":[101],"(>1.6Ith),":[102],"when":[103],"laser":[106],"output":[107],"(C=0)":[108],"originally":[110],"stable":[112],"comb.":[114],"The":[115],"resulting":[116],"dynamics,":[118],"characterized":[119],"by":[120],"broadband":[121],"spectra":[122],"and":[123,158,196],"large":[124],"positive":[125],"Lyapunov":[126],"exponents,":[127],"are":[128],"shown":[129],"depend":[131],"strongly":[132],"on":[133],"linewidth":[135],"enhancement":[136],"factor.":[137],"Although":[138],"QCLs":[140,164,180],"widely":[141],"considered":[142],"ultrastable":[144],"under":[145,165],"perturbations,":[147],"work":[149],"provides":[150],"first":[152],"detailed":[153],"report":[154],"chaos":[161],"in":[162,178,192],"feedback.":[167],"These":[168],"findings":[169],"not":[170],"only":[171],"deepen":[172],"understanding":[174],"nonlinear":[176],"also":[182],"open":[183],"new":[184],"possibilities":[185],"for":[186],"exploiting":[187],"applications":[188],"light":[191],"sensing,":[194],"imaging":[195],"secure":[197],"communications.":[198]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-10-01T08:54:57.152042","created_date":"2025-12-05T00:00:00"}
