ArticleThe Review of scientific instruments2015
Flexible digital signal processing architecture for narrowband and spread-spectrum lock-in detection in multiphoton microscopy and time-resolved spectroscopy.
Article in The Review of scientific instruments, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Leaving the Limits of Linearity for Light Microscopy.The journal of physical chemistry. C, Nanomaterials and interfaces · 2020Article
- Adaptive noise canceling for transient absorption microscopy.Journal of biomedical optics · 2020Article
- Invited Review Article: Pump-probe microscopy.The Review of scientific instruments · 2016Review
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Authors and funding
4 authors.
Funding
Abstract
The lock-in amplifier is a critical component in many different types of experiments, because of its ability to reduce spurious or environmental noise components by restricting detection to a single frequency and phase. One example application is pump-probe microscopy, a multiphoton technique that leverages excited-state dynamics for imaging contrast. With this application in mind, we present here the design and implementation of a high-speed lock-in amplifier on the field-programmable gate array (FPGA) coprocessor of a data acquisition board. The most important advantage is the inherent ability to filter signals based on more complex modulation patterns. As an example, we use the flexibility of the FPGA approach to enable a novel pump-probe detection scheme based on spread-spectrum communications techniques.
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Registered trials
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