淡江大學機構典藏:Item 987654321/114749
English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 62830/95882 (66%)
造訪人次 : 4038238      線上人數 : 562
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/114749


    題名: 核殼微型光柵之奈米光子噴流研究
    其他題名: The study of photonic nanojets of the core-shell micro-grating
    作者: 鄭宇倫;Cheng, Yu-Lun
    貢獻者: 淡江大學機械與機電工程學系碩士班
    劉承揚;Liu, Cheng-Yang
    關鍵詞: diffraction limit;Hemispherical micro-grating;photonic nanojets;Rectangle micro-grating;Saw-tooth micro-grating;三角形微米光柵;方型微米光柵;半圓型微米光柵;光子奈米噴流;繞射極限
    日期: 2017
    上傳時間: 2018-08-03 15:02:44 (UTC+8)
    摘要: 本論文主要研究三種介電微米光柵(半圓型、方型、三角型),在鍍上三種金屬薄殼(金、銀、銅)後,經由三種雷射波長(405 nm、532 nm、671 nm)照射下,產生的光子奈米噴流現象。本研究使用半導體微影製程和翻模技術來製作介電微米光柵,其材料為聚二甲基矽氧烷,然後再使用真空濺鍍機將金屬薄殼濺鍍至光柵表面。本論文使用數值模擬和實驗量測來研究和證明不同形狀的微米光柵在不同金屬薄殼和不同尺寸的情況下,光子奈米噴流的變化。在數值模擬方面,本論文使用時域有限差分法來模擬不同形狀、尺寸、金屬薄殼,在不同波長雷射的照射下,產生的光場分佈及能量強度的情況。在實驗量測方面,本論文使用高靈敏度光學顯微系統來擷取實驗噴流影像,再以電腦程式分析實驗影像之數據,如噴流焦距、長度、寬度、能量強度等,並與數值模擬的參數做交互比較。本論文發現銀殼微米光柵產生的噴流長度比無殻光柵的噴流長度長,而銅殼光柵在405 nm波長及532 nm波長雷射光照射下有較強的能量強度,此研究結果可幫助未來能夠找到更加完美的光子奈米噴流來觀察奈米級的物體。
    The photonic nanojets generated by different shapes of dielectric micro-gratings (hemispherical, rectangle, and saw-tooth) in three metal shells (gold, silver, copper) are exposed under three incident wavelengths (405 nm, 532 nm, 671 nm). The dielectric micro-gratings composed of polydimethylsiloxane are made by semiconductor manufacturing technologies and molding techniques. A sputtering system is used to plate metal shells on the dielectric micro gratings. In order to observe the transformations of the photonic nanojets for different shapes of micro gratings, metal shells, and sizes, the theatrical calculations and experimentation are presented in this paper. In the theoretical calculations, the finite-difference time-domain method is used to simulate the intensity distribution of photonic nanojets at different laser wavelengths, shape, size and metals shells. In the measurements, a high sensitivity optical microscope system is used to record the images of the nanojets. A computer program is written to analyze the parameters of photonic nanojets, including focal length, length, width, and intensity. The results of the simulation and experiment are compared in this paper. It is observed that the intensity of copper shell micro-gratings is enhanced by exposing at incident wavelengths 405nm and 532nm. The research findings can be used to find a better way to observe nanoscale objects in the future.
    顯示於類別:[機械與機電工程學系暨研究所] 學位論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    index.html0KbHTML193檢視/開啟

    在機構典藏中所有的資料項目都受到原著作權保護.

    TAIR相關文章

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回饋