Publications de Alexis Rochas | EPFL Graph Search

ASIC for High-Speed-Gating and Free Running Operation of SPADs

Alexandre Pauchard, Yusuf Leblebici, Grégoire Ribordy, Alexis Rochas

Single photon detection at telecom wavelengths is of importance in many industrial applications ranging from quantum cryptography, quantum optics, optical time domain reflectometry, non-invasive testing of VLSI circuits, eye-safe LIDAR to laser ranging. In ...

2007

Integrated imager circuit comprising a monolithic array of single photon avalanche diodes

Pierre-André Besse, Alexis Rochas, Cristiano Niclass, Edoardo Charbon

Integrated circuit (1) comprising: an array of single photon avalanche diodes (SPADs), a plurality of read-out circuits, each SPADs being coupled to one read-out circuit, wherein at least some of the read-out circuits comprise time-to-digital converters (T ...

2007

A 4µs Integration Time Imager Based on CMOS Single Photon Avalanche Diode Technology

Pierre-André Besse, Radivoje Popovic, Alexis Rochas, Cristiano Niclass, Edoardo Charbon

2006

Identification of luminescent molecules comprises fluorescence correlation spectroscopy

Pierre-André Besse, Radivoje Popovic, Alexis Rochas, Theo Lasser

The invention relates to a method and device for identifying luminescent molecules according to the fluorescence correlation spectroscopy method. The inventive method comprising the following steps: a) preparing a sample (12) containing luminescent molecul ...

2005

Design and characterization of a CMOS 3-D image sensor based on single photon avalanche diodes

Pierre-André Besse, Alexis Rochas, Cristiano Niclass, Edoardo Charbon

The design and characterization of an imaging system is presented for depth information capture of arbitrary three-dimensional (3-D) objects. The core of the system is an array of 32 × 32 rangefinding pixels that independently measure the time-of-flight of ...

2005

CMOS imager based on single photon avalanche diodes

Pierre-André Besse, Radivoje Popovic, Alexis Rochas, Cristiano Niclass, Edoardo Charbon

In this paper we report on a 32×32 optical imager based on single photon avalanche diodes integrated in CMOS technology. The maximum measured dynamic range is 120dB and the minimum noise equivalent intensity is 1.3×-3lx. The minimum integration time per pi ...

2005

Single photon avalanche diodes in CMOS technology

Alexis Rochas

EPFL2003