ResourceSpectroscopy

Diffuse Reflectance Spectroscopy and Fluorescence Spectroscopy as Techniques for Identification of Lung Cancers

11 Dec 2014

A group working at the Antoni van Leeuwenhoek hospital in the Netherlands are tackling this problem with the use of biophotonic techniques – namely Diffuse Reflectance Spectroscopy (DRS) and Fluorescence Spectroscopy (FS) – to assess how the accuracy of the diagnostic procedure may be improved. This application note outlines their design and testing of prototype instrumentation for the addition of these photonic based modalities to the standard histopathology technique, and demonstrates their benefit to the final diagnosis.

iDus InGaAs CCD Detector

Oxford Instruments Andor

From the manufacturer’s of the World's most compact and reliable spectroscopic CCD detector, comes a new Near Infrared detector solution, the Andor iDus InGaAs detector array system. With all the benefits you’ve come to expect from the iDus range of detectors, the iDus InGaAs detector offers a choice of 512 or 1024 element linear photodiode arrays (PDA) ideal for NIR spectroscopy with high sensitivity output and high resolution covering wavelengths from 800nm up to 2200nm. Andor's iDus InGaAs 1.7 Array Detector series provides the most optimized platform for Spectroscopy applications up to 1.7 µm. The TE-cooled, in-vacuum sensors reach cooling temperatures of -90°C where best Signal-to-Noise ratio can be achieved. Indeed dark current will improve moderately below -90°C where scene black body radiation will dominate, while Quantum Efficiency of the sensor will be greatly impacted at these lower temperatures and lead to a lower Signal-to-Noise ratio.Andor's iDus InGaAs 2.2 Array Detector series provides the most optimized platform for Spectroscopy applications up to 2.2 µm. The TE-cooled, in-vacuum sensors reach cooling temperatures of -90°C where best Signal-to-Noise ratio can be achieved. Indeed dark current will improve moderately below -90°C where scene black body radiation will dominate, while Quantum Efficiency of the sensor will be greatly impacted at these lower temperatures and lead to a lower Signal-to-Noise ratio.

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