The applications of reflected and red transmitted film have been analysed.

the SEM results of etched pit density (EPD) of the radiated GaAs wafer by preferential etching with KOH melt show the "W"linear profiles of lightly chromium doped GaAs crystals; The infrared transmission results of optical processing GaAs samples show that the effect of EPD on infrared transmission can be neglected if the value of.

Using the infrared transmission theory, which is to say that the bonding part of thesample can make the light pass, and the un-bonding part of the sample will block the light, at thesame time, the unique method of cold lamp-house is used to manufacture the instrument of testingthe wafer bonding quality in order to select the high quality one for the next technical research.

It was observed that, after boiling the samples in water, the infrared transmittance increased, the absorption edge was moved to the short wave direction and the absorption below the energy gap was reduced, and that the range of infrared transmission was narrowed.

Preparation of infrared antireflection coating on PbMoO_4 substrateby using ion-assisted deposition technology;

Compared with the conventional thermal vapor deposition coating, the ion assisted deposition technology is particularly helpful for the infrared antireflection coating on PbMoO 4 wafer that requires higher coating quality and greater position accuracy of the center wavelength.

Soybean Whole Kernels Analysis by Near-Infrared Transmission Technique;