Sensitivity of the tetraaminodiphenyl based pyroelectric sensor from visible to sub-THz range
Sensitivity of the tetraaminodiphenyl based pyroelectric sensor from visible to sub-THz range
复制标题
基于四氨基二苯的热释电传感器从可见光到亚太赫兹范围的灵敏度
作者：
A. G. Paulish;A. V. Gusachenko;A. Morozov;V. A. Golyashov;K. Dorozhkin;V. Suslyaev
目的
研究了基于四氨基联苯薄膜的新型热释电传感器在0.4-10 μm和300- 3000 μm波长范围内的光谱灵敏度特性。
设计/方法/方式
厚度约为70 µm的聚酯薄膜用作输入窗口。基于MDR-41单色仪的光谱测定复合物和具有一组返波振荡器的准光学光谱仪分别用于测量0.4-10 µm和300- 3，000 µm范围内的高温探测器光谱特性。
结果
人们发现聚酯薄膜在0.4-10 µm范围内具有吸收线，这在开发宽带探测器时必须考虑在内。在可见光和红外波段的噪声等效功率小于6 × 10-10 W/Hz ~（1/2），约为模拟噪声的1/5。在亚太赫兹范围内，高温探测器的灵敏度比Golay单元高2-8倍。在整个测量范围内，这种探测器的灵敏度对波长的依赖性很弱。
实际影响
热释电传感器在超宽光谱范围（从紫外到毫米辐射）、用于科学研究的光谱仪、用于太赫兹辐射源的操作控制的工业以及安全太赫兹系统中具有良好的应用前景。
独创性/价值
测量了基于TADPh的热释电光电传感器在可见光、红外和太赫兹波段的光谱灵敏度特性。确定了使用这种传感器的前景。
Purpose
The purpose of this paper is to study the spectral sensitivity characteristics of new pyroelectric sensor based on tetraaminodiphenyl film within the wavelength range of 0.4-10 µm and 300-3,000 µm.
Design/methodology/approach
Mylar film with the thickness of about 70 µm was used as the input window. The MDR-41 monochromator-based spectrometric complex and the quasi-optical spectrometer with the set of backward-wave oscillators were used for measurements of the pyrodetector spectral characteristics within the 0.4-10 µm and 300-3,000 µm ranges, respectively.
Findings
Mylar was found to have absorption lines within the range of 0.4-10 µm, which must be taken into account when broadband detectors developing. The noise equivalent power in the visible and infrared ranges was less than 6 × 10–10 W/Hz1/2, which is about five times lower than for analogue ones. In the sub-THz range, the pyrodetector sensitivity is 2-8 times higher than the Golay cell. The sensitivity of such pyrodetector weakly depends on the wavelength in the total measured range.
Practical implications
The pyroelectric sensor has good prospects for use in super wide spectral range, from ultraviolet to millimeter radiation, in spectrometers for scientific research, in industry for the operational control of THz radiation sources, as well as in security THz-systems.
Originality/value
The spectral sensitivity characteristics of the pyroelectric photosensor based on TADPh in the visible, infrared and terahertz ranges were measured. The prospects for the use of such sensors were determined.