Solid Immersion Lens Microscope for Spectroscopy of Nanostructure Materials

被引：7
|
作者：
Yim, Sang-Youp [1 ]
Kim, Joon Heon [1 ]
Lee, Jongmin [1 ]
机构：
[1] GIST, Adv Photon Res Inst, Kwangju 500712, South Korea
来源：
JOURNAL OF THE OPTICAL SOCIETY OF KOREA | 2011年 / 15卷 / 01期
关键词：
Solid immersion lens; Microscopy; Spectroscopy; Nanostructure;
D O I：
10.3807/JOSK.2011.15.1.078
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate a high-spatial-resolution imaging and spectroscopy tool using a solid immersion lens (SIL), a hemispherical lens made of high refractive index glass (n similar to 2). Photoluminescence (PL) images of single CdSe nanocrystals confirm a numerical aperture enhancement factor of similar to 2, close to the refractive index of the SIL. In particular, a bare-eye observation of PL signals emitted by single nanocrystals with similar to 10 mu m(-2) densities was possible over an similar to 30 mu m diameter region. In addition, the PL spectra of single CdSe nanocrystals were successfully measured at room temperature. Thus, this SIL microscope ensures a simple but powerful method for nanostructure spectroscopy.
引用
收藏
页码：78 / 81
页数：4
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