WHISPERING GALLERY MODE SILICA MICROSPHERE RESONATOR APPLICATIONS FOR BIOSENSING AND OPTICAL FREQUENCY COMBS
Date
2021
Authors
Brice, Inga
Journal Title
Journal ISSN
Volume Title
Publisher
Latvijas Universitāte
Abstract
Čukstošās galerijas modu rezonatori (ČGMR) ir piesaistījuši interesi savu optisko īpašību un daudzveidīgo pielietojumu dēļ. ČGMR virsma tika pārklāt ar vairākiem funkcionalizējošiem slāņiem. Tika izstrādāts un pielāgots glikozes sensora modelis. Lai nodrošinātu selektivitāti, tika izmantota glikozes oksidāze (GOx), un, lai uzlabotu sesnsora jutību, - zelta (Au) nanodaļiņas (NP). Tika pārbaudītas vairākas ZnO nanostruktūras, lai palielinātu virsmas laukumu un proteīnu pieķeršanos, kas bija selektīvas govju leikēmijas vīrusa antigēna/antivielu reakcijām. Frekvences ķemmes, kas ģenerētas ČGMR (WCombs), var izmantot datu pārraidei. WComb ierosināšanai tika izmantoti pumpēšanas lāzeri C-joslas telekomunikāciju diapazonā. Tika pētīta arī WComb ilgtermiņa stabilitāte. Stabilitāti galvenokārt ietekmēja temperatūra. Atslēgas vārdi: biosensori, ČGMR, nelineārie efekti, Q faktors, SiO2 mikrosfēras
Whispering gallery modes resonators (WGMRs) have attracted interest due to their optical properties and variety of potential applications. WGMR surface was functionalized with multiple different functionalizing layers. A glucose sensor model was developed and tested. Gold nanoparticles were used to enhance the sensitivity together with glucose oxidase to ensure selectivity. Several ZnO structures were tested to increase surface area for protein binding which were selective for antigen/antibody reactions of developed toxin sensor for Bovine leukemia virus. WGMR generated frequency combs (WCombs) can be used for application in data transmission. Pumping lasers in the C-band telecommunication diapason were used for WComb excitation. Long-term stability was investigated. The stability was mainly affected by temperature. Key words: biosensors, WGMR, nonlinear effects, Q factor, SiO2 microsphere.
Whispering gallery modes resonators (WGMRs) have attracted interest due to their optical properties and variety of potential applications. WGMR surface was functionalized with multiple different functionalizing layers. A glucose sensor model was developed and tested. Gold nanoparticles were used to enhance the sensitivity together with glucose oxidase to ensure selectivity. Several ZnO structures were tested to increase surface area for protein binding which were selective for antigen/antibody reactions of developed toxin sensor for Bovine leukemia virus. WGMR generated frequency combs (WCombs) can be used for application in data transmission. Pumping lasers in the C-band telecommunication diapason were used for WComb excitation. Long-term stability was investigated. The stability was mainly affected by temperature. Key words: biosensors, WGMR, nonlinear effects, Q factor, SiO2 microsphere.
Description
Keywords
Fizika , Lāzeru fizika un spektroskopija , Physics , Laser physics and spectroscopy