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Heterodyne detected nonlinear optical imaging in a lock-in free manner
- Source :
- Journal of biophotonics. 5(10)
- Publication Year :
- 2012
-
Abstract
- We report a compact, cost-effective tuned amplifier for frequency-selective amplification of the modulated signal in heterodyne detected nonlinear optical microscopy. Our method improved the signal to noise ratio by an order of magnitude compared to conventional lock-in detection, as demonstrated through stimulated Raman scattering imaging of live cells and tissues at the speed of 2 μsec/pixel. Application of the tuned amplifier to transient absorption microscopy is also demonstrated. The increased signal to noise ratio allowed epi-detected in vivo imaging of myelin and blood in rat spinal cord with high spatial resolution.
- Subjects :
- Heterodyne
Male
General Physics and Astronomy
CHO Cells
Spectrum Analysis, Raman
Signal
General Biochemistry, Genetics and Molecular Biology
Tuned amplifier
symbols.namesake
Mice
Signal-to-noise ratio
Optics
Cricetulus
Cricetinae
Microscopy
Intestine, Small
Animals
General Materials Science
Heterodyne detection
Chemistry
business.industry
Optical Imaging
General Engineering
Signal Processing, Computer-Assisted
General Chemistry
Rats
Mice, Inbred C57BL
Nonlinear Dynamics
Spinal Cord
symbols
business
Raman scattering
Preclinical imaging
Subjects
Details
- ISSN :
- 18640648
- Volume :
- 5
- Issue :
- 10
- Database :
- OpenAIRE
- Journal :
- Journal of biophotonics
- Accession number :
- edsair.doi.dedup.....f31162dcc401183b82c9cb92660df36e