CAJ | 학술논문

基于自下而上的电化学沉积法，利用改进的工艺在一片 ITO 导电玻璃基底上制备双层银树枝多带光学左手材料，并测试其透射和平板聚焦行为。实验结果表明，样品在可见光波段出现3个透射通带，并且当入射光的波长为透射峰值波长时，在距离样品后表面半波长附近出现平板聚焦效应，充分证实了样品在可见光波段的左手行为。将两个相同的左手材料样品以一定的间距组合成一个左手异质结构，当一束复色光沿左手异质结构的中心线入射时，在左手异质结构中出现一条非常明亮的、由紫到红的彩色光带，表明不同波长的光在不同的位置停留下来，从而实现了光谱的空间分离，即捕获彩虹效应。
기우자하이상적전화학침적법，이용개진적공예재일편 ITO 도전파리기저상제비쌍층은수지다대광학좌수재료，병측시기투사화평판취초행위。실험결과표명，양품재가견광파단출현3개투사통대，병차당입사광적파장위투사봉치파장시，재거리양품후표면반파장부근출현평판취초효응，충분증실료양품재가견광파단적좌수행위。장량개상동적좌수재료양품이일정적간거조합성일개좌수이질결구，당일속복색광연좌수이질결구적중심선입사시，재좌수이질결구중출현일조비상명량적、유자도홍적채색광대，표명불동파장적광재불동적위치정류하래，종이실현료광보적공간분리，즉포획채홍효응。
Based on the bottom-up electrochemical deposition method,we prepare optical multiband left-handed metamaterial with bilayer silver dendrite on a single ITO glass substrate by improved process.We test trans-mission spectrum and planner focusing effect of sample.The experimental results verify the left-handed behav-ior.When a white light was incident along the central line of left-handed heterostructure,a bright color strip was obserbed.It was indicated that each frequency component was stopped at a different air core thickness, leading to the spatial separation of its spectrum,i.e.trapped rainbow effect.