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本文介绍在温度≤77K及相当低的背景辐射下工作的锑化锢光伏探测器,其性能达到了热噪声限。在这种条件下,等效噪声功率完全取决于探测器的工作温度、电阻和量子效率。在大批制造这种有效的探测器时,最佳参数选择可使5微米的噪声等效功率低达10~(-15)瓦。这种特定的前置放大器,对于达到热噪声限工作是很关键的,文内作了详细叙述。
This paper presents an antimony-bound PV detector that operates at temperatures <77K and relatively low background radiation and achieves thermal noise limits. Under these conditions, the equivalent noise power depends entirely on the detector’s operating temperature, resistance and quantum efficiency. In mass production of such effective detectors, the optimum parameter selection allows a 5-micron noise equivalent power to be as low as 10 to (-15) watts. This particular preamplifier is critical to achieving thermal noise limiting, described in detail in the article.