Abstract
The authors' studies on photon scanning tunneling microscope (PSTM) are reviewed. Normal and lateral resolutions achieved by a transmission-type PSTM are estimated as high as 2-nm and 5-nm, respectively. To improve the performance of the system, several methods are proposed, e. g., a novel reflection-resonance-type PSTM is advantageous to improve the resolution. Advanced application systems are also proposed, and especially, a possibility of using the PSTM system as a single-atom-level crystal growth is discussed.
