Tuning the resonances of high Q-factor whispering gallery mode resonators for optoelectronic applications

buir.advisorOrtaç, Bülend
dc.contributor.authorHüseyinoğlu, Ersin
dc.date.accessioned2022-09-06T06:17:09Z
dc.date.available2022-09-06T06:17:09Z
dc.date.copyright2022-07
dc.date.issued2022-07
dc.date.submitted2022-09-05
dc.descriptionCataloged from PDF version of article.en_US
dc.descriptionThesis (Ph.D.): Bilkent University, Graduate Program in Materials Science and Nanotechnology, İhsan Doğramacı Bilkent University, 2022.en_US
dc.descriptionIncludes bibliographical references (leaves 74-83).en_US
dc.description.abstractOptical resonators allow highly efficient light-matter interaction; therefore, they are promising tools for optoelectronics and photonics. Especially optical resonators with high Q-factors such as toroidal resonators can be instrumentalized to develop efficient light sources, modulators, converters, and sensitive detectors. They are already being used for photonics research; however, some significant obstacles hinder their mass utilization in the industry. One of those obstacles is the current limitations of the fabrication method used to produce toroidal resonators. Due to the method used to achieve surface tension-induced microresonators (STIM), their fabrication is time-consuming. A new approach was presented to mass-produce STIMs. Instead of a fixed position laser, a raster scan laser was used to reflow the microresonators with different geometry types to overcome the mass-fabrication limitations. As a result, high-Q-factor (10^6) toroidal resonators were fabricated. Reflowing of elliptical and racetrack resonators were also demonstrated. Another problem that hinders the utilization of toroidal resonators is their high susceptibility to any errors originating from the fabrication process. Any deviation from the designed parameters leads to resonators with different resonant modes. A method for post-production tuning resonant mode of chalcogenide coated resonator was demonstrated. By using a thin Ge2Sb2Te5 layer coated silica toroidal resonator, 0.01 nm and 0.02 nm permanent mode shifts were achieved from 5 nm thick coated and 10 nm thick coated resonators, respectively.en_US
dc.description.provenanceSubmitted by Betül Özen (ozen@bilkent.edu.tr) on 2022-09-06T06:17:08Z No. of bitstreams: 1 B161260.pdf: 16782167 bytes, checksum: d4b188703d6b1bf64b9e048a996e1c47 (MD5)en
dc.description.provenanceMade available in DSpace on 2022-09-06T06:17:09Z (GMT). No. of bitstreams: 1 B161260.pdf: 16782167 bytes, checksum: d4b188703d6b1bf64b9e048a996e1c47 (MD5) Previous issue date: 2022-07en
dc.description.statementofresponsibilityby Ersin Hüseyinoğluen_US
dc.format.extentxiv, 73 leaves : color illustrations ; 30 cmen_US
dc.identifier.itemidB161260
dc.identifier.urihttp://hdl.handle.net/11693/110491
dc.language.isoEnglishen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectOptical resonatorsen_US
dc.subjectSurface tension-induced resonatorsen_US
dc.subjectOptical fiber taperingen_US
dc.subjectLight couplingen_US
dc.subjectChalcogenide glassesen_US
dc.subjectPhotonicsen_US
dc.subjectMicrotoroidsen_US
dc.subjectResonant mode shiften_US
dc.subjectResonant mode tuningen_US
dc.subjectWhispering gallery modesen_US
dc.titleTuning the resonances of high Q-factor whispering gallery mode resonators for optoelectronic applicationsen_US
dc.title.alternativeOptoelektronik uygulamalar için yüksek K-faktörlö optik mikrorezonatörlerin rezonant modlarının değiştirilmesien_US
dc.typeThesisen_US
thesis.degree.disciplineMaterials Science and Nanotechnology
thesis.degree.grantorBilkent University
thesis.degree.levelDoctoral
thesis.degree.namePh.D. (Doctor of Philosophy)

Files

Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
B161260.pdf
Size:
16 MB
Format:
Adobe Portable Document Format
Description:
Full printable version
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.69 KB
Format:
Item-specific license agreed upon to submission
Description: