Title :
Imaging detectors based on the response of anisotropic layered materials
Author :
Gulian, A.M. ; van Vechten, D. ; Wood, K.S. ; Fritz, G.G. ; Horwitz, J.S. ; Osofsky, M.S. ; Pond, J.M. ; Qadri, S.B. ; Stroud, R.M. ; Thrasher, J.B. ; Vartanyan, V.O. ; Kuzanyan, A.S. ; Nikogosyan, V.R. ; Gyulamiryan, A.L.
Author_Institution :
Naval Res. Lab., Washington, DC, USA
fDate :
6/1/1999 12:00:00 AM
Abstract :
The inherent properties of naturally layered materials such as the high-temperature superconductors cause a transient voltage when a light pulse is absorbed. The amplitude is proportional to the absorbed energy. Observable pulses arise in the HTS materials even at room temperature. A phenomenological model of the effects consistent with our observations on the first generation of sensors will be discussed along with recent results regarding sensitivity to single photons, array geometry and readout, and energy resolution.
Keywords :
high-temperature superconductors; hot carriers; image sensors; superconducting devices; anisotropic layered material; high temperature superconductor; imaging detector; light pulse absorption; passive hot electron sensor; phenomenological model; thermoelectricity; transient voltage; Anisotropic magnetoresistance; Detectors; High temperature superconductors; Optoelectronic and photonic sensors; Sensor arrays; Sensor phenomena and characterization; Solid modeling; Superconducting materials; Temperature sensors; Voltage;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
