N. Tomazio, L. Sciuti, G. Almeida, L. Boni, C. Mendonca
{"title":"Dye-doped random microlasers fabricated via femtosecond laser-induced two-photon polymerization (Conference Presentation)","authors":"N. Tomazio, L. Sciuti, G. Almeida, L. Boni, C. Mendonca","doi":"10.1117/12.2507650","DOIUrl":"https://doi.org/10.1117/12.2507650","url":null,"abstract":"","PeriodicalId":410052,"journal":{"name":"Organic Photonic Materials and Devices XXI","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131747138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bisrat G. Assefa, Henri Partanen, Markku Pekkarinen, Joris Biskop, J. Turunen, J. Saarinen
{"title":"Imaging quality 3D-printed inch scale lenses with 10[angstrom] surface quality for swift small or medium volume production (Conference Presentation)","authors":"Bisrat G. Assefa, Henri Partanen, Markku Pekkarinen, Joris Biskop, J. Turunen, J. Saarinen","doi":"10.1117/12.2506010","DOIUrl":"https://doi.org/10.1117/12.2506010","url":null,"abstract":"The demand for disposable optics, especially in biomedical fields involving point of care testing systems has led to navigation for new low-cost and high quality optics fabrication processes. We demonstrate that 3D-printing of optics allows on-demand fabrication of polymer lenses at a low price, when no expensive initial tooling expenses are required. However, achieving high surface quality imaging optics has been challenging primarily when the lens diameter is greater than fivefold of a millimeter. In this work, we demonstrate an imaging quality 3D-printed polymer lens with high surface quality of RMS = 0.92 ± 0.33 nm (δ, N=25) and surface profile deviation of ± 500 nm within 0.5 inch aperture diameter. The 3D-printing method is based on Luxexcel’s Printoptical® Technology, using modified ink-jet printheads, by depositing micro-droplets of Opticlear, which is a UV-curable polymer with an inhomogeneity index of 1.1-1.3×10-5 for 0.5 mm plate. We demonstrate a spatial resolution limit below 5 μm using a USAF1951-1x imaging resolution target for the 3D-printed singlet lens that is comparable to an off-the shelf commercial LA1509 N-BK7 plano-convex lens with the same specification parameters. Another application area of the inch-scale printed lens is in low-cost DSLR cameras. Experimental photos taken with a 3D-printed singlet lens and a commercial glass lens are nearly identical. As a result, manufacturing of 3D-printed singlet lenses with repeatability of ±200 nm for small or medium volume production at once becomes feasible by placing the printheads in parallel. We expect further developments towards achromatic optics by development of new 3D-printable polymers.","PeriodicalId":410052,"journal":{"name":"Organic Photonic Materials and Devices XXI","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115153184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. J. G. Otuka, V. Tribuzi, B. Torres, D. Balogh, L. Boni, C. Mendonca
{"title":"Photo-induced birefringence in polymeric devices functionalized with azobenzene dyes (Conference Presentation)","authors":"A. J. G. Otuka, V. Tribuzi, B. Torres, D. Balogh, L. Boni, C. Mendonca","doi":"10.1117/12.2508788","DOIUrl":"https://doi.org/10.1117/12.2508788","url":null,"abstract":"","PeriodicalId":410052,"journal":{"name":"Organic Photonic Materials and Devices XXI","volume":"183 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124640092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The importance of the chromophore rigidity on the efficiency of TADF emitters (Conference Presentation)","authors":"N. Kukhta, A. Batsanov, M. Bryce, A. Monkman","doi":"10.1117/12.2507895","DOIUrl":"https://doi.org/10.1117/12.2507895","url":null,"abstract":"","PeriodicalId":410052,"journal":{"name":"Organic Photonic Materials and Devices XXI","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128611170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}