| Summary: | 碩士 === 國立交通大學 === 光電工程研究所 === 105 === Surface plasmon polariton (SPP) is the combination of oscillated charges wave and light. Some properties of SPP likes Ultra-small mode volume and strongly localized light intensity are benefited to the applications for lithography process, ultra-compact opto-electronic integrated circuits (OEICs), biological detection. In OEICs, scientists are striving to minimize the size of optical devices for efficient integrating, then the plasmonic nanolaser realm are inspired. Furthermore, the enhancement of localized light intensity enable scientists to study on weak interaction between light and matters. In this thesis, we aimed to shrink down the SPP nanolasers’ mode volume by changing the density of states (DOS) of the laser cavity. We used the ZnO nanowire crossover with silver trenches to form the one-dimensional (1-D) laser cavity, that can provide a better confinement of SPP mode. Then we compared the measured results of 1-D SPP nanolaser and 2-D SPP. We can conclude that the mode volume of 1-D SPP nanolaser is around 1.5x10-5 λ^3, which is 100 times smaller than that of the 2-D SPP nanolasers, and the purcell factor of 1-D SPP nanolaser is enhanced due to the extreme localized electric field and ultra small mode volume.
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