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提出了一种新颖的方法来研究电控可调谐液晶法布里珀罗高光谱成像探测器,该设备将用于3~5μm波段范围内连续挑选特定波长,液晶指向失会受到加在设备电极两端的电压说产生的电场影响,基于这个理论,腔内的液晶折射率能够被电控。通过运用薄膜的矩阵传输公式,计算了感光面上的红外透过率,从而得到了透过率,外加点信号,以及挑选波长之间的关系。最重要的理论是设备将由两个法布里珀罗干涉仪紧密连接起来,分别受电控制,从而达到准确的在波段范围挑选单一波长的目的。
A novel method is proposed to study electrically tunable liquid crystal Fabry-Perot hyperspectral imaging detector. The device will be used to continuously pick a specific wavelength in the range of 3 ~ 5μm. Liquid crystal orientation loss will be affected by the voltage applied to the device electrode Based on this theory, the refractive index of the liquid crystal in the cavity can be electrically controlled by the electric field generated by the voltage at both ends. By using the matrix transfer formula of the film, the infrared transmittance on the photosensitive surface is calculated, and the relationship between the transmittance, the additional point signal and the selected wavelength is obtained. The most important theory is that the device will be closely connected by two Fabry-Perot interferometers and each controlled electronically to achieve an accurate single-wavelength pick-up over the band.