| Autor: |
Gwladys Perrais, Michael Tchagaspanian, Nicholas Baier, Johan Rothman, Eric De Borniol, André Perez, Sylvain Gout, P. Ballet, Fabrice Guellec, Maryse Fournier, Jean-Paul Chamonal, Laurent Mollard, Gérard Destefanis, Pierre Castelein, Philippe Tribolet |
| Rok vydání: |
2008 |
| Předmět: |
|
| Zdroj: |
SPIE Proceedings. |
| ISSN: |
0277-786X |
| Popis: |
We report the latest developments of MW HgCdTe electron initiated avalanche photo-diodes (e-APDs) focal plane arrays (FPAs) at CEA-LETI. The MW e-APD FPAs are developed in view of ultra-sensitive high dynamic range passive starring arrays, active 2D/3D and dual-mode passive-active imaging, which is why both the passive imaging performance and the gain characteristics of the APDs are of interest. A passive mode responsivity operability of 99.9% was measured in LPE and MBE e-APDs FPAs associated with an average NETD=12mK, demonstrating that dual mode passive-active imaging can be achieved with LETI e-APDs without degradation in the passive imaging performance. The gain and sensitivity performances were measured in test arrays and using a low voltage technology (3.3V) CTIA test pixel designed for 3D active imaging. The CTIA and test arrays measurements yielded comparable results in terms of bias gain dependence (M=100 at Vb=-7V), low excess noise factor ( =1.2) and low equivalent input current (Ieq_in 100, associated with an operability of 99%. The operability at Ieq_in |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
