In the spectral testing system, the detector serves as the "eyes" of the entire optical system. The signal capture capability directly determines the credibility of the experimental data. Conventional silicon detectors generally have weak response in the ultraviolet band, and face problems such as high noise and unstable acquisition when dealing with weak light signals. This often leads to signal loss and data distortion in the deep ultraviolet range testing, which restricts the material characterization and ultraviolet spectrum-related experiments. Beijing Saifan Light... 。 Sevan Optoelectronics' 7ID219 ultraviolet-enhanced silicon detector, equipped with a Shimadzu original silicon detection chip, achieves an ultra-wide spectral response ranging from 190 to 1100 nm, providing a highly reliable photoelectric conversion solution for ultraviolet-visible-near-infrared band photodetection. Beijing Sevan Optoelectronics... 。
7ID219 features a 10×10mm large light-sensitive surface with a light-sensitive area of 100mm². It has excellent light-gathering efficiency, significantly reducing the difficulty of light path coupling. Whether it is free light incidence or fiber coupling input, it can efficiently collect light energy. Even in the presence of weak incident light, it can output effective signals, effectively improving the system's signal-to-noise ratio and instrument information network. The ultraviolet enhancement process enables the device to still have a good response rate of 0.1 - 0.12A/W at 200nm, compensating for the shortcomings of ordinary silicon detectors in deep ultraviolet range; the response rate at 960nm peak can reach 0.5A/W, covering the full range of ultraviolet, visible light, and near-infrared detection capabilities, with a response time of 3μs, ensuring rapid signal response and suitable for dynamic light signal acquisition scenarios. The product has low dark current, good linearity, low equivalent noise power, stable performance during long-term continuous operation, and small temperature drift. It comes with a standard coaxial signal cable and is available with a three-coaxial high shielding version, which still offers anti-interference performance over long-distance transmission, reducing external noise interference on the signal and ensuring the accurate reproduction of light intensity changes. Beijing Saifan Light... 。 The entire casing is of a sturdy mechanical structure. It has standard optical platform mounting holes, making disassembly, adjustment and installation convenient. It can be directly matched with single-beam spectrometers, filter wheel, sample chamber, spectrometers and other Sefan optical components without any gap. It can quickly build a complete test optical path and can also be embedded inside automated detection equipment for integrated use. It meets the requirements of scientific research prototypes and industrial equipment development. Beijing Sefan Optics... 。
Working temperature: -20℃ to +60℃. It has strong environmental adaptability and can cover both the constant temperature environment of laboratories and the variable working conditions of instruments in industrial sites. It is widely used in ultraviolet-visible spectroscopy measurement, film transmittance and reflectance testing, laser power monitoring, optical component calibration, fluorescence detection, two-dimensional material optical characterization, photovoltaic photoelectric response testing, etc. It is applicable to both university research projects and enterprise R&D and testing. Beijing Saifan Light... 。
When experiments require coverage of the deep ultraviolet band while also considering sensitivity and stability, the 7ID219 ultraviolet-enhanced silicon detector, with its large photosensitive surface, wide spectral response, and low noise, faithfully reproduces the light signal, making the spectral data more reliable, reducing the cost of repeated experimental debugging, and facilitating the efficient advancement of scientific research and testing work.
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