{"has_accepted_license":"1","abstract":[{"lang":"eng","text":"We propose a simple method to measure nonlinear Kerr refractive index in mid-infrared frequency range that avoids using sophisticated infrared detectors. Our approach is based on using a near-infrared probe beam which interacts with a mid-IR beam via wavelength-non-degenerate cross-phase modulation (XPM). By carefully measuring XPM-induced spectral modifications in the probe beam and comparing the experimental data with simulation results, we extract the value for the non-degenerate Kerr index. Finally, in order to obtain the value of degenerate mid-IR Kerr index, we use the well-established two-band formalism of Sheik-Bahae et al., which is shown to become particularly simple in the limit of low frequencies. The proposed technique is complementary to the conventional techniques, such as z-scan, and has the advantage of not requiring any mid-infrared detectors."}],"type":"journal_article","file_date_updated":"2023-09-20T11:36:16Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publisher":"AIP Publishing","day":"28","ddc":["530"],"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"oa":1,"title":"Mid-infrared Kerr index evaluation via cross-phase modulation with a near-infrared probe beam","intvolume":"       123","article_processing_charge":"Yes (in subscription journal)","citation":{"apa":"Lorenc, D., &#38; Alpichshev, Z. (2023). Mid-infrared Kerr index evaluation via cross-phase modulation with a near-infrared probe beam. <i>Applied Physics Letters</i>. AIP Publishing. <a href=\"https://doi.org/10.1063/5.0161713\">https://doi.org/10.1063/5.0161713</a>","ieee":"D. Lorenc and Z. Alpichshev, “Mid-infrared Kerr index evaluation via cross-phase modulation with a near-infrared probe beam,” <i>Applied Physics Letters</i>, vol. 123, no. 9. AIP Publishing, 2023.","ama":"Lorenc D, Alpichshev Z. Mid-infrared Kerr index evaluation via cross-phase modulation with a near-infrared probe beam. <i>Applied Physics Letters</i>. 2023;123(9). doi:<a href=\"https://doi.org/10.1063/5.0161713\">10.1063/5.0161713</a>","chicago":"Lorenc, Dusan, and Zhanybek Alpichshev. “Mid-Infrared Kerr Index Evaluation via Cross-Phase Modulation with a near-Infrared Probe Beam.” <i>Applied Physics Letters</i>. AIP Publishing, 2023. <a href=\"https://doi.org/10.1063/5.0161713\">https://doi.org/10.1063/5.0161713</a>.","mla":"Lorenc, Dusan, and Zhanybek Alpichshev. “Mid-Infrared Kerr Index Evaluation via Cross-Phase Modulation with a near-Infrared Probe Beam.” <i>Applied Physics Letters</i>, vol. 123, no. 9, 091104, AIP Publishing, 2023, doi:<a href=\"https://doi.org/10.1063/5.0161713\">10.1063/5.0161713</a>.","ista":"Lorenc D, Alpichshev Z. 2023. Mid-infrared Kerr index evaluation via cross-phase modulation with a near-infrared probe beam. Applied Physics Letters. 123(9), 091104.","short":"D. Lorenc, Z. Alpichshev, Applied Physics Letters 123 (2023)."},"doi":"10.1063/5.0161713","date_published":"2023-08-28T00:00:00Z","external_id":{"arxiv":["2306.09043"]},"quality_controlled":"1","article_type":"original","_id":"14342","status":"public","department":[{"_id":"ZhAl"}],"author":[{"last_name":"Lorenc","full_name":"Lorenc, Dusan","first_name":"Dusan","id":"40D8A3E6-F248-11E8-B48F-1D18A9856A87"},{"orcid":"0000-0002-7183-5203","id":"45E67A2A-F248-11E8-B48F-1D18A9856A87","last_name":"Alpichshev","full_name":"Alpichshev, Zhanybek","first_name":"Zhanybek"}],"publication":"Applied Physics Letters","acknowledgement":"The work was supported by IST Austria. The authors would like to gratefully acknowledge the help and assistance of Professor John M. Dudley.","language":[{"iso":"eng"}],"issue":"9","volume":123,"publication_identifier":{"issn":["0003-6951"]},"year":"2023","date_updated":"2023-09-20T11:50:06Z","date_created":"2023-09-17T22:01:09Z","month":"08","file":[{"file_size":1486715,"file_name":"2023_ApplPhysLetter_Lorenc.pdf","relation":"main_file","date_updated":"2023-09-20T11:36:16Z","date_created":"2023-09-20T11:36:16Z","creator":"dernst","access_level":"open_access","file_id":"14353","success":1,"checksum":"89a1b604d58b209fec66c6b6f919ac98","content_type":"application/pdf"}],"publication_status":"published","oa_version":"Published Version","article_number":"091104","scopus_import":"1"}