奈米元件的奇特光學性質

Interesting Optical Property of Nanometer Sacle Device

魏正弘(Cheng-Hung Wei) ； 范文祥(Wun-Shain Fann) ； 魏培坤(P. K. Wei)

《光學工程》 83期 (2003/09) Pp. 1-7

https://doi.org/10.30011/OE.200309.0001

摘要

光通過微小孔洞的行為從二百年前就開始被研究，然而最近一系列的研究帶領我們進入一個新的世界。藉由特殊設計的奈米尺度孔洞，穿透光量可以是入射光量的二倍以上；光的空間發散角可以小於3°；近場顯微鏡所量測的影像更是呈現各種奇異的圖像。
這些現象有助於瞭解奈米尺度材料與元件的光學性質，也可能經由適當的設計而應用到光電產業的各個範疇，實際的影響到我們的生活。

關鍵字

奈米元件 ； 表面電漿子

並列摘要

The property of light transmitted through small aperture have been studied for more than 200 years ago. However, few recent studies found interesting phenomenon and lead us to a new thinking of these phenomenon. 1. Transmitted light intensity is two times the incident intensity when light pass through a 2-dimensional hole array with hole width in nanometer scales. 2. When light pass through a single aperture surrounded by corrugated metal film, the spatial angular divergence is only 30°. 3. Interesting pattern was found in NSOM (Near-field scanning optical microscopy) images of nanometer scale device. These novel phenomenon reveal the potential new optical properties occurred in nanometer scale materials and devices. With proper design, these knowledge may be applied to open up future optoelectronic field.

並列關鍵字

nanometer device ； surface plasmon