NIRlähde

NIRlähde is a Finnish word that translates to "NIR source" in English. NIR refers to Near-Infrared, a region of the electromagnetic spectrum. A NIR source is a device or material that emits light in this specific wavelength range, typically between 700 and 2500 nanometers. These sources are utilized in various scientific and industrial applications.

Common NIR sources include specialized lamps such as tungsten-halogen lamps, which emit a broad spectrum of infrared light, including the near-infrared. LEDs designed to emit light in the NIR range are also widely used due to their efficiency and longevity. Lasers operating in the near-infrared are employed in applications requiring high intensity and monochromatic light.

The applications of NIR sources are diverse. In spectroscopy, they are used to analyze the composition of materials by measuring how they absorb or reflect NIR light. This is common in food analysis, pharmaceuticals, and agriculture for quality control and ingredient identification. In telecommunications, NIR lasers are crucial for transmitting data through fiber optic cables. Thermal imaging cameras also utilize NIR sensitivity to detect heat signatures. Furthermore, NIR sources are found in medical devices for therapeutic purposes and in security systems for identification. The specific type of NIR source is chosen based on the required wavelength, intensity, and the demands of the application.