Zero-Astigmatism Imaging Spectrometer HELENA
Ideaoptics' HELENA zero-astigmatism imaging spectrograph uses a unique astigmatism-correcting optical design to eliminate conventional-instrument astigmatism and provide uniform, sharp spectral images across the focal plane. Its0.08nm spectral resolution and suppression of multichannel crosstalk improve weak-signal detection and the purity and reliability of multichannel spectral analysis. It supports advanced research in single-molecule fluorescence, transient spectroscopy, and fine-structure analysis of nanomaterials, providing a reliable tool for precision spectroscopy.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Focal Length [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | 320mm |
| Relative Aperture [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | f/4.6 |
| Spectral Resolution ‑PMT [Resolution Measurement Conditions:1200 grooves/mm Grating,546nm Wavelength,10-Micrometer Slit Width.] | 0.05 nm (10μm Slit ) |
| Spectral Resolution ‑CCD [Resolution Measurement Conditions:At Focal-Plane Center, Using a 10-Micrometer Slit and a Detector with 15um Pixels, Measured at 546nm.] | 0.08 nm |
| Reciprocal Linear Dispersion [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | 2.3 nm/mm |
| Wavelength Coverage(30-Millimeter-Wide CCD) [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | 63 nm |
| Focal Plane Dimensions(Width × Height) [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | 27mm × 22mm |
| Scanning Wavelength Range [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | 0‑1400 nm |
| Scan Step Size [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | 0.002 nm/step |
| Wavelength Accuracy [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | ±0.2 nm (up to ±0.02 nm after wavelength calibration) |
| Wavelength Repeatability [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | ±0.02 nm |
| Grating Turret [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | 1 (Accommodates 3 Gratings) |
| Number of Supported Turrets [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | 3;Interchangeable Triple-Grating Turret Module;Automatic System Calibration after Installation |
| Grating Switching Repeatability [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | 0.02 nm |
| Grating Dimensions [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | 68mm × 68mm |
| Astigmatism [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | Zero Astigmatism across All Wavelengths |
| Hardware Connection Ports [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | USB and RS‑232 |
| Development Library [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | C#、LABVIEW、Python |
| Certification [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | CE（EMC） |
| Overall Dimensions(Length × Width × Height) [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | 440mm×355mm×215mm(Excluding Accessories and Feet) |
| Optical Axis Height [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | 160mm‑186mm |
| Weight [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | 25.5kg |
| Operating Temperature / Humidity [Unless Otherwise Stated, All Specifications Were Measured Using a 1200 g/mm Grating at 435.8nm.] | Operating Temperature :5℃ ~30℃; Storage Temperature :‑10℃ ~50℃; Humidity :＜50%( Relative humidity ) |
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