69 research outputs found
Shot noise limited heterodyne detection of CARS signals
Get PDFWe demonstrate heterodyne detection of CARS signals using a cascaded phase-preserving chain to generate the\ud
CARS input wavelengths and a coherent local oscillator. The heterodyne ampli¯cation by the local oscillator re-\ud
veals a window for shot noise limited detection before the signal-to-noise is limited by amplitude °uctuations. We\ud
demonstrate an improvement in sensitivity by more than 3 orders of magnitude for detection using a photodiode.\ud
This will enable CARS microscopy to reveal concentrations below the current mMolar range
Inhibition of the Effect of Reserpine on Motor Control by Drugs which Influence Reserpine Rigidity
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Depression by nicotine of pain-related nociceptive activity in the rat thalamus and spinal cord
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Shot noise limited heterodyne detection of CARS signals
No full textWe demonstrate heterodyne detection of CARS signals using a cascaded phase-preserving chain to generate the CARS input wavelengths and a coherent local oscillator. The heterodyne ampli¯cation by the local oscillator re- veals a window for shot noise limited detection before the signal-to-noise is limited by amplitude °uctuations. We demonstrate an improvement in sensitivity by more than 3 orders of magnitude for detection using a photodiode. This will enable CARS microscopy to reveal concentrations below the current mMolar range
Acute effects of vitamin B6 and fixed combinations of vitamin B1, B6, B12 on nociceptive activity evoked in the rat thalamus: Dose-response relationship and combinations with morphine and paracetamol
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