{"title":"3D printed diffractive lenses operating at 1 THz","authors":"P. Komorowski, M. Kaluza, S. Surma, A. Siemion","doi":"10.3952/physics.2023.63.3.2","DOIUrl":null,"url":null,"abstract":"In this paper, we demonstrate the manufacturing of diffractive optics for frequencies as high as 1 THz using a relatively simple and cost-effective fused deposition modelling (FDM) 3D printing technique. Four diffractive lenses were designed and manufactured from the cyclic olefin copolymer (COC). Fabrication of diffractive lenses for such high frequencies was possible due to an unusually small nozzle, refined printing procedures and a very transparent material. For the two of the manufactured lenses, more than twofold improvement in focusing efficiency has been shown in a direct comparison with their refractive counterparts. Moreover, the other two elements demonstrated the feasibility of lenses with very small f-numbers (0.95 and 0.63) with this technique.","PeriodicalId":18144,"journal":{"name":"Lithuanian Journal of Physics","volume":"18 1","pages":""},"PeriodicalIF":0.3000,"publicationDate":"2023-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Lithuanian Journal of Physics","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.3952/physics.2023.63.3.2","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, we demonstrate the manufacturing of diffractive optics for frequencies as high as 1 THz using a relatively simple and cost-effective fused deposition modelling (FDM) 3D printing technique. Four diffractive lenses were designed and manufactured from the cyclic olefin copolymer (COC). Fabrication of diffractive lenses for such high frequencies was possible due to an unusually small nozzle, refined printing procedures and a very transparent material. For the two of the manufactured lenses, more than twofold improvement in focusing efficiency has been shown in a direct comparison with their refractive counterparts. Moreover, the other two elements demonstrated the feasibility of lenses with very small f-numbers (0.95 and 0.63) with this technique.
期刊介绍:
The main aim of the Lithuanian Journal of Physics is to reflect the most recent advances in various fields of theoretical, experimental, and applied physics, including: mathematical and computational physics; subatomic physics; atoms and molecules; chemical physics; electrodynamics and wave processes; nonlinear and coherent optics; spectroscopy.