S p e ctro m ete rs Ocean Optics pioneered the concept of ... - NDN

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Spectrometers QE65000 and Maya Series Spectrometers Bench Accessories for Your High-sensitivity Spectrometers SMA 905 Connector A precision SMA 905 Connector aligns to the spectrometer’s entrance slit and ensures concentricity of the fiber. For an upgrade fee that includes the cost of another connector and labor, we will replace the standard SMA 905 Connector with a different connector of your choice. Fixed Entrance Slits One option available with the user-configured spectrometer is the size of the entrance aperture, with the width determining the amount of light entering the bench. A slit is fixed in place; it only can be changed by our technicians. Slit Description QE Pixel Resolution Maya Pixel Resolution SLIT-5 5-µm wide x 1-mm high ~2.0 pixels ~2.0 pixels SLIT-10 10-µm wide x 1-mm high ~2.2 pixels ~2.2 pixels SLIT-25 25-µm wide x 1-mm high ~2.6 pixels ~2.6 pixels SLIT-50 50-µm wide x 1-mm high ~3.3 pixels ~3.3 pixels SLIT-100 100-µm wide x 1-mm high ~4.7 pixels ~4.7 pixels SLIT-200 200-µm wide x 1-mm high ~8.9 pixels ~8.9 pixels Longpass Absorbing Filter We offer longpass absorbing or blocking filters; each filter has a transmission band and a blocking band to restrict radiation to a certain wavelength region for eliminating second- and third-order effects. These filters are installed permanently between the slit and the clad mode aperture in the bulkhead of the SMA 905 Connector. OF1-WG305 OF1-GG375 OF1-GG395 OF1-GG475 OF1-OG515 OF1-OG550 OF1-OG590 Item Description Longpass filter; transmits light >305 nm Longpass filter; transmits light >375 nm Longpass filter; transmits light >395 nm Longpass filter; transmits light >475 nm Longpass filter; transmits light >515 nm Longpass filter; transmits light >550 nm Longpass filter; transmits light >590 nm Collimating and Focusing Mirrors You can replace the standard aluminum-coated reflective mirrors with our proprietary, UV-absorbing SAG+ Mirrors, which increase reflectance in the VIS-NIR and, in turn, increase the sensitivity of the spectrometer. SAG+ Mirrors are often specified for fluorescence. These mirrors also absorb nearly all UV light, which reduces the effects of excitation scattering in fluorescence measurements. Unlike most silver-coated mirrors, the SAG+ mirrors won’t oxidize Item Code: SAG+UPG-HR Grating and Wavelength Range With a choice of 14 gratings, you can easily customize the spectral range and most efficient region of your QE65000 or Maya2000 Series Spectrometer. Our gratings are permanently fixed in place at the time of manufacture and are available in both ruled and holographic versions. See page 47 for grating options and efficiency curves and consult an Ocean Optics Applications Scientist for details. 44 www.oceanoptics.com Tel: +1 727-733-2447
QE65000 and Maya Series Spectrometers Detectors and Accessories for Your High-sensitivity Spectrometers Back-thinned Area Detectors The Hamamatsu FFT-CCD detectors used in the QE65000, Maya2000 and Maya2000 Pro have great UV response and provide up to 90% quantum efficiency (defined as how efficiently a photon is converted to a photo-electron). The QE65000 uses the S7031-1006 2D array detector, the Maya2000 uses the S9840 detector and the Maya2000 Pro uses the S10420 detector. All three detectors are responsive from 200-1100 nm. Detectors with OFLV Filters OFLV Variable Longpass Order-sorting Filters are applied to the detector’s window to eliminate second- and third-order effects. We use a patented coating technology to apply the filter to the substrate. Spectrometers QE65000 Detector Options Item DET-QE DET-QE-OFLV-200 DET-QE-OFLV-250 DET-QE-OFLV-300 DET-QE-OFLV-350 DET-QE-OFLV-400 DET-QE-WINDOWLESS Description Hamamatsu S7031 detector, installed, w/no variable longpass filter Hamamatsu S7031 detector, installed, w/OFLV-QE-200 variable longpass filter Hamamatsu S7031 detector, installed, w/OFLV-QE-250 variable longpass filter Hamamatsu S7031 detector, installed, w/OFLV-QE-300 variable longpass filter Hamamatsu S7031 detector, installed, w/OFLV-QE-350 variable longpass filter Hamamatsu S7031 detector, installed, w/OFLV-QE-400 variable longpass filter Hamamatsu S7031 detector, installed, with no window options; required for VUV applications Maya2000 and Maya2000 Pro Detector Options Item Description Spectrometer DET-MAYA Hamamatsu S9840 detector, installed, w/no variable longpass filter Maya2000 DET-MAYA-OFLV-200 Hamamatsu S9840 detector, installed, w/OFLV-200 variable longpass filter Maya2000 DET-MAYA-UV Hamamatsu S9840 detector, installed, w/UV window Maya2000 DET-MAYA-VIS Hamamatsu S9840 detector, installed, w/VIS window Maya2000 DET-MAYA-WINDOWLESS Hamamatsu S9840 detector, installed, w/no window options; required for VUV applications Maya2000 DET-MAYAPRO Hamamatsu S10420 detector, installed, w/no variable longpass filter Maya2000 Pro DET-MAYAPRO-OFLV-200 Hamamatsu S10420 detector, installed, w/OFLV-200 variable longpass filter Maya2000 Pro DET-MAYAPRO-UV Hamamatsu S10420 detector, installed, w/UV window Maya2000 Pro DET-MAYAPRO-VIS Hamamatsu S10420 detector, installed, w/VIS window Maya2000 Pro DET-MAYAPRO-WINDOWLESS Hamamatsu S10420 detector, installed, with no window options; required for VUV applications Maya2000 Pro Technical Tip Just as flexibility is built into your spectrometer options, so, too, is flexibility built in to your experiment parameters. We use the term Scope Mode in software to indicate “raw signal” coming from the spectrometer. The Scope Mode spectrum is the digital signal created from the detector’s analog signal, which is generated as the result of photons being converted into electrons. The arbitrary units of the Scope mode spectrum are called “counts.” By changing the integration time, adjusting signal averaging and so on you can condition the raw signal to maximize intensity or reduce noise, for example. Once you have optimized your base signal you are ready to enter a Processed Mode. Processed data involves taking a dark, taking a reference and then going into a specific mode such as absorbance, transmission, reflection, relative irradiance, absolute irradiance, color and so on. In a Processed Mode the y-axis units are no longer arbitrary and therefore can be used to make qualitative, and is some cases quantitative, comparisons. www.oceanoptics.com Tel: +1 727-733-2447 45
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