奈米粒子於多波長膽固醇液晶雷射之應用

Multi-wavelength Laser Based on Dye-doped Cholesteric Liquid Crystals with Nanoparticles

黃素真(Shug-June Hwang) ； 陳昇頡(Sheng-Chieh Chen) ； 李佳榮(Chia-Rong Lee)

《光學工程》 119期 (2012/09) Pp. 24-29

https://doi.org/10.30011/OE.201209.0005

摘要

本論文主要利用多面體矽氧烷寡聚物（Polyhedral Oligomeric Silsequioxanes；POSS）奈米粒子自組裝的特性來研製多波長膽固醇液晶雷射，運用POSS聚集成類網絡的結構來分散膽固醇液晶成多區間分佈，且提供多波長共振條件；實驗中以不同降溫速率與POSS濃度來控制多區間結構的分佈，進而調控多波長雷射輸出的特性。

關鍵字

多面體矽氧烷寡聚物 ； 膽固醇液晶 ； 多波長雷射

並列摘要

A novel technology was proposed to make a multi-wavelength laser from dye-doped cholesteric liquid crystal (CLC) cell by incorporating the self-assembled polyhedral oligomeric silsesquioxane (POSS) nanoparticles. Due to the multi-domain CLC structure can be realized by the aggregation of the POSS nanoparticles in the CLC cell, multi-wavelength lasing is easily achieved by controlling the self-organization process of POSS/CLC mixture. Since the multi-domain structure of CLC layers can be controlled by POSS-doped concentration and cooling rate, the multi-wavelength lasing performance is easily tuned by the fabrication conditions.

並列關鍵字

POSS ； Cholesteric liquid crystal ； multi-wavelength laser