An interdisciplinary experimental teaching method for replacing traditional planar mirrors with new materials is proposed for optical resonant cavity experiments in laser principle.Using prism type reflective film,which is often encountered in people's daily lives in the field of transportation,in the experimental process.On the one hand,it can stimulate students'interest and improve their innovation awareness;On the other hand,the material's strong reflective effect and anti-reflective performance effectively overcome the disadvantages of difficult and time-consuming debugging of planar mirror resonant cavities.By comparing the debugging process and experimental results with the planar mirror resonant cavity,we can cultivate students' interdisciplinary abilities and greatly improve the efficiency and quality of laser principle experimental teaching.
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