| A single photon avalanche diode array fabricated in deep-submicron CMOS technology Recent countries visiting this post |  |
 | 4 | United States |
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| A single photon avalanche diode array fabricated in deep-submicron CMOS technology Recent countries visiting this post | |
| 4 | United States |
| 1 | |
| 1 | Germany |
| 1 | Japan |
| 1 | Russian Federation |