The research of focusing light through turbid media by phase conjugate mirror

• Main Authors: Che-Chu Lin, 林哲巨
• Other Authors: Ching-Cherng Sun
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/wxqw3a

博士 === 國立中央大學 === 光電科學與工程學系 === 103 === Base on the Kitty self-pumped phase conjugate mirror (Kitty-SPPCM), a study for the incidence geometry to extend the accepted incidence position is presented and demonstrated in this thesis. When the incidence position is changed, a Kitty-SPPCM with high-pass filtering and a different SPPCM similar to the Bridge-SPPCM can be found. These conjugators extend the accepted incidence position range and angle, and it is helpful to apply the SPPCM in various new applications. The counter-directional Kitty-SPPCM is applied to optimize digital optical phase conjugation (DOPC) system alignment. With the precise DOPC system, the probing light can focus a spot through a mice’s skin. However, there is always a limit in optical penetration depth. A novel method is presented to focus light inside thick bio-tissue by a virtual objective lens, and a four-wave mixing system forming the virtual objective lens is demonstrated in experiment. This research is helpful to the 4-pi, second harmonic generation (SHG) and flourensence microscopy.