{"id":9044,"date":"2022-08-24T14:27:24","date_gmt":"2022-08-24T12:27:24","guid":{"rendered":"https:\/\/imif.lukasiewicz.gov.pl\/highlights-of-spie-optics-photonics-2022\/"},"modified":"2022-08-24T14:27:25","modified_gmt":"2022-08-24T12:27:25","slug":"highlights-of-spie-optics-photonics-2022","status":"publish","type":"post","link":"https:\/\/imif.lukasiewicz.gov.pl\/en\/highlights-of-spie-optics-photonics-2022\/","title":{"rendered":"Highlights of SPIE Optics + Photonics 2022"},"content":{"rendered":"

The SPIE Optics + Photonics 2022 website: \u201cEscape every day and talk with scientists and engineers and share the spontaneous ideas that only happen when we gather in person\u201d \u2013 there\u2019s no use convincing us more, after over 2 years of online and hybrid conferences we all say YES to meeting in person! As Dorota Pier\u015bci\u0144ska, Ph.D. told us: \u201cIt\u2019s so good to take part in a conference \u201coff-line\u201d again.\u201d\u00a0<\/p>\n

As you might guess, however, face-to-face meetings are not the only reason why our researchers from the Infrared Photonics Research Group decided to conquer San Diego in the USA. Kamil Pier\u015bci\u0144ski, Ph.D., Dorota Pier\u015bci\u0144ska, Ph.D., Aleksander Ku\u017amicz, Ph.D., Grzegorz Sobczak, Ph.D., Piotr Gutowski, Ph.D., and Krzysztof Chmielewski, Eng. have written a paper on \u201cMulti-section coupled cavity mid-IR quantum cascade lasers\u201d in which they presented a modified approach to coupled cavity QCLs, based on multisection (3 sections) coupled cavity QCLs. The range of spectral tuning is very important from the point of view of applications in optical sensing techniques based on the intrapulse tuning of the laser emission. They have designed and fabricated 3-section CC QCLs characterized by intrapulse wavelength tuning of 2.8 cm-1, obtained for 2-microsecond pulse width.<\/p>\n

– The device operates above room temperature.
\n– The improvement of the spectral tuning of the 3-section device is compared to the 2-section laser.
\n– The third section significantly improved the performance of the laser in terms of single-mode intrapulse wavelength tuning.<\/p>\n

The second presentation has referred to \u201cThe experimental investigation of thermal properties of mid-IR quantum cascade lasers.\u201d The paper was written by D. Pier\u015bci\u0144ska, G. Sobczak, Katarzyna Krajewska, K. Chmielewski, A. Ku\u017amicz, and P. Gutowski.<\/p>\n

Improving the heat dissipation in QCLs is essential from the point of view of a growing number of their applications, which require better performance. In this paper, our scientists have proposed and experimentally demonstrated the possibility of a significant reduction of AR temperature without sophisticated and fabrication-intensive means.<\/p>\n

They examined the influence of electroplated gold thickness on thermal and electro-optical properties of InP-based QCLs. Numerical modeling, that was performed, predicts a significant reduction of the laser core temperature of epi-side up mounted ridge waveguide QCLs with increased thickness of electroplated gold. Predictions of the numerical model were confirmed experimentally by means of electro-optical, spectral, and thermal characterization.<\/p>\n

The presentations mentioned above were 2 out of 2000 in the fields of optics and photonics that have provided us with innovative ideas for the future R&D works and we hope that they will also solve today\u2019s problems.<\/p>\n<\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":4,"featured_media":9039,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_lmt_disableupdate":"","_lmt_disable":""},"categories":[86,155,149,171],"tags":[432],"yoast_head":"\nHighlights of SPIE Optics + Photonics 2022 - \u0141ukasiewicz \u2013 IMiF<\/title>\n<meta name=\"description\" content=\"The SPIE Optics + Photonics 2022 conference has already begun. 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