Fast digital photon correlation system with high dynamic range

Author

Engels, M. ; Hoppe, B. ; Meuth, H. ; Peters, R.

Author_Institution

Fachhochschule Darmstadt, Germany

fYear

2000

fDate

2000

Firstpage

18

Lastpage

22

Abstract

Photon correlation has many applications in different scientific and technological areas. Correlation functions are calculated from the measured data in real time with dedicated circuitry. In this paper we present a correlator system for lag times from 6.25 ns to 3436 s. The extraordinary dynamic range of 10¹² is achieved with a multiple sampling time architecture. The key component of the correlator is the MTC72-chip used as a fast front end in the DSP-based system. The chip was implemented in 0.7 μm CMOS standard cells using HDL-models and synthesis. The algorithmic concepts and the design considerations for the front end chip are outlined

Keywords

CMOS digital integrated circuits; application specific integrated circuits; correlators; digital signal processing chips; signal processing equipment; 0.7 micron; 6.25 ns to 3436 s; CMOS standard cell process; DSP-based system; HDL models; MTC72-chip; correlation functions; dedicated circuitry; fast digital photon correlation system; fast front end; high dynamic range; multiple sampling time architecture; Clocks; Correlators; Delay; Detectors; Digital signal processing chips; Dynamic range; Hardware; Light scattering; Sampling methods; Semiconductor device measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

ASIC/SOC Conference, 2000. Proceedings. 13th Annual IEEE International

Conference_Location

Arlington, VA

Print_ISBN

0-7803-6598-4

Type

conf

DOI

10.1109/ASIC.2000.880669

Filename

880669