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物理学院“博约学术沙龙”系列报告第82期

发布日期:2014年05月06日

 间:   201458日(星期四)下午4:10
 点:   中心教学楼610

报告一:博士生报告    
时间:16:10-16:40
 目:单光子成像技术研究
报告人:王超                        
指导老师:赵清、葛墨林

摘要:

 
单光子是目前可探测光能量的极限。通过单光子探测手段结合压缩感知算法,能够实现极弱光成像。在天文、军事和生命科学方面有广泛的应用前景。

报告二:博士生报告    
时间:16:40-17:10
 目:Tailorable circular dichroism of the helical plasmonic nanoellipsoid assemblies 
报告人     王雷                  
指导老师:邓罗根

摘要:

We investigate the circular dichroism (CD) of the helical gold nanoellipsoid assemblies by means of the discrete dipole approximation. The helical nanoellipsoid assemblies exhibit complicated plasmon-induced CD signals at the localized surface plasmon resonance frequency. The strong CD response of these assemblies can be ascribed to the collective dipole and multipole interactions between nanoparticles. The strength and wavelength of the CD signals can be manipulated in the range of 500 to 670 nm via tuning the aspect ratio of the nanoellipsoids. This study paves a viable way for designing the chiral plasmonic nanostructures with strong and tailorable optical properties.

联系方式:物理学院办公室(68913163

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