以甲基橙为感敏物质研究了多孔玻璃光学基片负载前后的光学特性。结果表明 :负载前在可见光范围内其透光率一般大于 70 %;负载后试样在 480 mm产生最大吸收 ;在 λ>62 0 mm波段 ,透光率比负载前略有增加。由此说明 :多孔玻璃光学基片可用作光学化学传感的敏感物质载体。 The optical properties of porous glass optical substrates before and after loading were studied using methyl orange as sensitizer. The results show that the light transmittance of the sample is generally greater than 70% in the visible range before loading; the maximum absorption of the sample at 480 mm occurs after the loading; and the transmittance is slightly higher than that before loading in the range of λ> 62 0 mm. This shows that: Porous glass optical substrate can be used as a sensitive carrier of optical chemical sensing.