A low noise, nonmagnetic fluorescence detector for precision measurements

Kunyan Zhu, Neal Solmeyer, David S. Weiss

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


We have built a fluorescence imaging system with a nonmagnetic front end photodiode array (PDA) located inside a magnetically shielded science region. The PDA is connected by a bundle of 2 m long mini-coaxial cables to a set of external bootstrapped amplifiers with 107 Ω trans-impedance and a peak light-equivalent spectral noise density of 2.0 pW/√Hz in a 150 kHz bandwidth. The detector is being used for a cold atom electron electric dipole moment search experiment.

Original languageEnglish (US)
Article number113105
JournalReview of Scientific Instruments
Issue number11
StatePublished - Nov 2012

All Science Journal Classification (ASJC) codes

  • Instrumentation


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