{"publication":"Applied Physics Letters","doi":"10.1063/5.0161713","date_updated":"2023-09-20T11:50:06Z","day":"28","year":"2023","language":[{"iso":"eng"}],"publication_identifier":{"issn":["0003-6951"]},"article_type":"original","intvolume":"       123","abstract":[{"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.","lang":"eng"}],"publisher":"AIP Publishing","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","external_id":{"arxiv":["2306.09043"]},"oa":1,"has_accepted_license":"1","tmp":{"image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)"},"oa_version":"Published Version","license":"https://creativecommons.org/licenses/by/4.0/","department":[{"_id":"ZhAl"}],"issue":"9","type":"journal_article","ddc":["530"],"article_processing_charge":"Yes (in subscription journal)","status":"public","_id":"14342","file":[{"date_updated":"2023-09-20T11:36:16Z","relation":"main_file","file_size":1486715,"file_id":"14353","date_created":"2023-09-20T11:36:16Z","file_name":"2023_ApplPhysLetter_Lorenc.pdf","checksum":"89a1b604d58b209fec66c6b6f919ac98","access_level":"open_access","success":1,"content_type":"application/pdf","creator":"dernst"}],"quality_controlled":"1","publication_status":"published","volume":123,"article_number":"091104","month":"08","author":[{"last_name":"Lorenc","first_name":"Dusan","id":"40D8A3E6-F248-11E8-B48F-1D18A9856A87","full_name":"Lorenc, Dusan"},{"orcid":"0000-0002-7183-5203","id":"45E67A2A-F248-11E8-B48F-1D18A9856A87","last_name":"Alpichshev","first_name":"Zhanybek","full_name":"Alpichshev, Zhanybek"}],"citation":{"short":"D. Lorenc, Z. Alpichshev, Applied Physics Letters 123 (2023).","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>.","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>","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.","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.","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>","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>."},"title":"Mid-infrared Kerr index evaluation via cross-phase modulation with a near-infrared probe beam","date_published":"2023-08-28T00:00:00Z","file_date_updated":"2023-09-20T11:36:16Z","date_created":"2023-09-17T22:01:09Z","acknowledgement":"The work was supported by IST Austria. The authors would like to gratefully acknowledge the help and assistance of Professor John M. Dudley.","scopus_import":"1"}