Year: 2025
Type: article
Abstract: The fabrication and characterization are two areas where the microlenses have been widely studied. The integration of microlenses into microdevices was the main slingshot to achieve the fabrication of compact optical microsystems with reduced sizes, low-cost and on a reproducible way. The main driver of cost reduction was the use of standard microfabrication techniques found on the microlectronics industry. The actual interest of microlenses is the light gathering/projection and focusing for optimizing the light acquisition/production and thus, to improve the sensitivity/efficiency of optical microsystems either working as sensor or as source. In this context, this paper makes a review of microlenses for application in optical sensors. This review describes fabrication technologies, characteristics and applications of microlenses. This review also gives special emphasis on a case study of polymeric microlenses obtained by thermal reflow and at the same time, it also demonstrates the feasibility to augment light into photodiodes.
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
Funders: Fundação de Amparo à Pesquisa do Estado de São Paulo, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Ministerio de Economía y Competitividad, Ministério da Ciência, Tecnologia e Inovação, Conselho Nacional de Desenvolvimento Científico e Tecnológico, Fundação de Amparo à Ciência e Tecnologia do Estado de Pernambuco, Fundação para a Ciência e a Tecnologia
Awards: G1833582501, G2482902583, G2882796567, G295657101, G340864225, G345304822, G3775710221, G4047124729, G431513407, G4700488516, G4935018052, CMOS microdevice to enable new brain stimulation therapies, G6215404311, Unidade de Investigação em Microssistemas Eletromecânicos, G7724923126, Unidade de Investigação em Microssistemas Eletromecânicos, G7911394525, G850816766
OpenAlex ID: W4412527947