The principle of SPR(Surface Phasmon Resonance), the energisation condition of SPR phenomenon and the phase variation of the ref lected light in SPR are briefly presented.

• 首先简述了表面等离子体共振原理、激发表面等离子体共振的条件和产生共振时反射光的相位变化，再对横向塞曼激光器的应用进行了分析。