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Development of gradient index microlenses for the broadband infrared range

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dc.abstract.enThe development of gradient index free-form micro-optic components dedicated to the mid-infrared range is challenging due to the lack of appropriate technology. We propose a method for developing gradient index components for broadband infrared range beyond the transmission window of silicate glass based on nanostructurization using a stack-and-draw fiber drawing technique. A proof-of-concept microlens is developed and verified experimentally in the wavelength range 1.5-4.3 mu m. The microlenses are composed of a set of nanorods with a diameter of 940 nm made of a pair of SiO2-PbO-Bi2O3-Ga2O3 based glasses ordered into the preliminary calculated binary pattern. The pattern forms effectively continuous parabolic refractive index distribution for infrared range according to Maxwell-Garnett effective medium model. The development of individual microlenses with a diameter of 118 mu m and focal length of 278 mu m at the wavelength of 3.75 mu m are reported. A large array of 737 microlenses with an individual diameter of 125 mu m and focal length of 375 mu m is also presented and analyzed.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorSTĘPIEŃ, RYSZARD
dc.contributor.authorBUCZYŃSKI, RYSZARD
dc.contributor.authorPYSZ, DARIUSZ
dc.contributor.authorFILIPKOWSKI, ADAM
dc.contributor.authorKASZTELANIC, RAFAŁ
dc.contributor.authorKarioja, Pentti
dc.contributor.authorTroles, Johann
dc.contributor.authorLiang, Sheng
dc.contributor.authorNguyen, Hue Thi
dc.date.accessioned2024-01-24T21:47:44Z
dc.date.available2024-01-24T21:47:44Z
dc.date.issued2022
dc.description.financePublikacja bezkosztowa
dc.description.number2
dc.description.volume30
dc.identifier.doi10.1364/OE.448461
dc.identifier.issn1094-4087
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/104749
dc.identifier.weblinkhttps://opg.optica.org/viewmedia.cfm?URI=oe-30-2-2338&seq=0
dc.languageeng
dc.pbn.affiliationphysical sciences
dc.relation.ispartofOptics Express
dc.relation.pages2338
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.subject.enOPTICAL WAVE-GUIDES
dc.subject.enGLASS-CERAMICS
dc.subject.enMU-M
dc.subject.enGRIN
dc.subject.enABERRATIONS
dc.subject.enFABRICATION
dc.subject.enBISMUTH
dc.subject.enDESIGN LENSES
dc.subject.enFIBER
dc.titleDevelopment of gradient index microlenses for the broadband infrared range
dc.typeJournalArticle
dspace.entity.typePublication