申请人:——
公开号:US20010045529A1
公开(公告)日:2001-11-29
The present invention provides various techniques useful for a double-resonance-absorption microscope which realizes a super-resolution by using a double resonance absorption. As one technique, there is provided a double-resonance-absorption microscope comprising a light source for a pump light of a wavelength &lgr;
1
which excites a sample molecule to a first electronic excited state from a ground state, a light source for an erase light of a wavelength &lgr;
2
which excites the sample molecule to a second electronic excited state or a higher excited state from the first electronic excited state and overlap means for partially overlapping irradiating areas of the pump light and the erase light with each other, wherein an emission area upon deexcitation of the sample molecule to the ground state from the first electronic excited state is partially inhibited by irradiating the pump light and the erase light through the overlap means, said double-resonance-absorption microscope characterized in that there is provided, on an optical path of the erase light, a spatial filter which has a condenser lens and a collimate lens and a pinhole therebetween and performs condensing of the erase light onto the pinhole by the condenser lens and collimating of the erase light passed through the pinhole into a parallel beam by the collimate lens.
本发明提供了用于双共振吸收显微镜的各种技术,该显微镜通过使用双共振吸收实现超分辨率。作为其中一种技术,本发明提供了一种双共振吸收显微镜,该显微镜包括一个光源,该光源用于波长为 &lgr;
1
1 的泵浦光的光源,它将样品分子从基态激发到第一电子激发态;波长为 &lgr;
2
将样品分子从第一电子激发态激发到第二电子激发态或更高激发态的光源,以及用于将泵浦光和擦除光的照射区域部分重叠的重叠装置,其中,通过重叠装置照射泵浦光和擦除光,可部分抑制样品分子从第一电子激发态被激发到基态时的发射区域、所述双共振吸收显微镜,其特征在于,在擦除光的光路上,有一个空间滤波器,该滤波器有一个聚光透镜和一个准直透镜,中间有一个针孔,聚光透镜将擦除光聚光到针孔上,准直透镜将通过针孔的擦除光准直成平行光束。