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iHR550 Imaging Spectrometer

iHR550 Imaging Spectrometer
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Imaging Spectrometer OSD-IS-01 Simply the Best Imaging Spectrometer with No Compromise The iHR550 imaging spectrometer from HORIBA Scientific is simply the most versatile spectrometer on the market with no compromise among imaging, spectroscopy, and adaptability. The iHR550 utilizes a unique patented asymmetric design, which provides superior image quality and minimizes unwanted optical aberrations common to symmetric and crossed-Czerny Turner designs. For unrestricted flexibility, the iHR550 allows the user to take full advantage of the instrument by having two entrance and two exit ports for enhanced measurement capabilities. The iHR550 is the most suitable imaging spectrometer solution for: • Multi-track spectroscopy with tens of fibers imaged at once • Direct coupling for microscopy and 2D imaging • Hyperspectral imaging for Raman and luminescence applications • UV-Vis, near-IR and mid-IR spectroscopy with multiple array or single-channel detectors Virtually No Astigmatism When spatial resolution is needed, optical aberrations and—more precisely—astigmatism limits the imaging capabilities of the spectrometer. In a multi-track spectroscopy setup, where high spatial resolution is needed, astigmatism leads to a "bow-tie" effect, in which the image of each fiber blurs in the vertical direction towards the edge of the CCD. The iHR550 spectrometer minimizes astigmatism and delivers a sharp image of each fiber across the entire focal plane, as shown in Figure 1. Negligible Crosstalk To assess the degree of crosstalk between fibers, it is necessary to perform a horizontal bin of the full image. In a poorly designed spectrometer with a high degree of astigmatism, the signal between fibers begins to overlap, preventing clear separation between the fibers. The design of the iHR550 minimizes crosstalk between channels and improves contrast ratio. Figure 2 (next page) shows that the iHR550 image quality provides distinct peak separation. Figure 1. Image of a broadband quartz tungsten-halogen spectrum recorded with nineteen 200 μm fibers using the 1× imaging adapter with an iHR550 spectrometer, 1200 gr/mm grating blazed at 500 nm, and 1024×256 open-electrode CCD.

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Figure 2: Horizontally binned results from Figure 1 showing minimal crosstalk between fibers. Figure 5: Spectral line from a mercury calibration lamp measured with an iHR550 and 1024×256 open-electrode CCD (blue), compared with a simulation showing effects of coma (red). Preservation of the focal plane image Figure 3 shows the image of each fiber as it is moved across the focal plane. Again, the effect of astigmatism is minimal, allowing a sharp image across the 30 × 12 mm focal plane. Fully Coma Corrected In addition to effects that arise from astigmatism, spectra and images can also be...

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Microspectroscopy In addition to being the most suitable spectrometer for spectroscopy applications, the iHR550 imaging spectrometer offers outstanding performance when used for microspectroscopy. The iHR550 interfaces seamlessly with most commercially available microscopes as depicted in Figure 6 (top) on an inverted microscope for Raman spectroscopy. Imaging of the sample may be recorded with the microscope's witness camera or through the spectrometer itself, eliminating the need for an additional camera. Figure 6 (bottom) shows the image of Convallaria cells recorded with a grating tuned...

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Up to four ports (two entrance and two exit) Kinematic turret with easy access hatch High-speed USB and additional hub port Purge port for UV and near-IR Easy CCD focus and alignment with external locking mechanism Choice of CCD or exit slit on either exit port Fast scanning capability: up to 160 nm/s Powerful SynerJY™ software for Windows® Optional internal filter wheel Choice of 2 mm slits for high resolution or 7 mm slits for high throughput iHR550 Specifications Focal length (mm) Grating size three, on-axis Flat field size Stray light Step size Length Width Optical axis Nominal weight...

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