CHARACTERIZATION OF A HIGH-SENSITIVITY COMPOSITE SILICON BOLOMETER

We have measured the electrical and radiometric properties of a cryoge nic bolometer/amplifier which is intended for use as a transfer standa rd in an infrared spectral comparator facility under development at th e NIST. We have found its sensitivity to be approximately 20 pW, insta bility < 1 %, responsivity approximately 1,7 x 10(6) V/W, spatial nonu niformity < 1 % and nonlinearity < 1 % over five decades. These result s show that this device can be used for its intended purpose as an IR detector transfer standard.