U. Woggon, M. Artemyev, H. Jaschinski, A. Pack, R. Wannemacher
{"title":"光子被限制在掺有量子点的3d微腔中","authors":"U. Woggon, M. Artemyev, H. Jaschinski, A. Pack, R. Wannemacher","doi":"10.1109/QELS.2001.961848","DOIUrl":null,"url":null,"abstract":"Summary form only given. We present the concept of a hollow microsphere to realize an efficient coupling between 3D-confined cavity modes and quantized electronic states of semiconductor quantum dots. We demonstrate both experimentally and theoretically that photons emitted from semiconductor nanocrystals placed inside a thin surface shell of a high-quality spherical microcavity efficiently couple to distinct, spectrally well separated high-Q whispering gallery modes (WGM) while cavity modes of higher radial quantum numbers n>1 are suppressed. The observed cavity modes are in the red-orange spectral range and exhibit a cavity finesse Q up to 4000 at T=300 K (Q is defined here as the ratio between resonance energy and linewidth of a cavity mode). The electrodynamic coupling of a radiative dipole to the WGM mode of a dielectric sphere has been investigated as a function of position and orientation of the dipole within the sphere by using the multiple multipole theory.","PeriodicalId":21999,"journal":{"name":"Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2001-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Photons confined in 3D-microcavities doped with quantum dots\",\"authors\":\"U. Woggon, M. Artemyev, H. Jaschinski, A. Pack, R. Wannemacher\",\"doi\":\"10.1109/QELS.2001.961848\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Summary form only given. We present the concept of a hollow microsphere to realize an efficient coupling between 3D-confined cavity modes and quantized electronic states of semiconductor quantum dots. We demonstrate both experimentally and theoretically that photons emitted from semiconductor nanocrystals placed inside a thin surface shell of a high-quality spherical microcavity efficiently couple to distinct, spectrally well separated high-Q whispering gallery modes (WGM) while cavity modes of higher radial quantum numbers n>1 are suppressed. The observed cavity modes are in the red-orange spectral range and exhibit a cavity finesse Q up to 4000 at T=300 K (Q is defined here as the ratio between resonance energy and linewidth of a cavity mode). The electrodynamic coupling of a radiative dipole to the WGM mode of a dielectric sphere has been investigated as a function of position and orientation of the dipole within the sphere by using the multiple multipole theory.\",\"PeriodicalId\":21999,\"journal\":{\"name\":\"Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2001-05-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/QELS.2001.961848\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/QELS.2001.961848","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Photons confined in 3D-microcavities doped with quantum dots
Summary form only given. We present the concept of a hollow microsphere to realize an efficient coupling between 3D-confined cavity modes and quantized electronic states of semiconductor quantum dots. We demonstrate both experimentally and theoretically that photons emitted from semiconductor nanocrystals placed inside a thin surface shell of a high-quality spherical microcavity efficiently couple to distinct, spectrally well separated high-Q whispering gallery modes (WGM) while cavity modes of higher radial quantum numbers n>1 are suppressed. The observed cavity modes are in the red-orange spectral range and exhibit a cavity finesse Q up to 4000 at T=300 K (Q is defined here as the ratio between resonance energy and linewidth of a cavity mode). The electrodynamic coupling of a radiative dipole to the WGM mode of a dielectric sphere has been investigated as a function of position and orientation of the dipole within the sphere by using the multiple multipole theory.