How can 1064nm infrared lase diode work for spectral analysis?
Molecules and atoms in a substance absorb or emit photons under the irradiation of light of a specific wavelength, generating characteristic spectra related to the structure and composition of the substance. The infrared laser light emitted by the 1064nm infrared laser diode is used as an excitation light source. After interacting with the substance, the composition, structure and other information of the substance can be obtained by detecting the spectral changes such as absorption, scattering or fluorescence of the substance.

What are advantages of 1064nm infrared laser diode?
Good wavelength adaptability. The 1064nm wavelength is in the near infrared region. A lot of substances have characteristic absorption or scattering in this band, and good penetration into biological tissues and some materials, thus achieve non-destructive or minimally destructive detection.
High energy and high stability. 1064nm infrared laser diode can output higher energy lasers so as to ensure effective interaction with substances, generate obvious spectral signals. It maintains highly stable performance, small fluctuation in output power and wavelength, ensuring high accuracy and repeatability of spectral analysis results.
Easy to integrate and operate. Being made with ultra compact size structure, 1064nm laser diode enables easy carrying and integration with other optical components and detection equipment to form a portable or online spectral analysis system. It makes quick detection and analysis for on site detecting and real time monitoring work etc.

1064nm infrared laser diode is playing an important role for spectral analysis.

Applications are listed as below:

Material composition analysis: In the analysis of metal materials, the sample is irradiated with a 1064nm infrared laser diode to excite the sample atoms to produce a characteristic emission spectrum. By analyzing the spectrum, the type and content of various elements in the metal material can be determined, trace elements in the alloy can be detected, and the quality and performance of the material can be evaluated. For semiconductor materials, 1064nm laser diode can analysis the impurity content and type, such as detecting impurities such as boron and phosphorus in silicon materials so as to ensure the performance of semiconductor devices.

Biological molecule detection: In protein analysis, a 1064nm laser diode is used to excite protein molecules. The study of fluorescence spectrum characteristics, the structure, conformational changes and interaction of proteins with other molecules can be processed effectively. In DNA testing, genotyping and DNA sequence analysis, 1064nm infrared laser light source can help engineer analyze the absorption or scattering spectrum of DNA molecules.

Environmental pollutant monitoring: When monitoring atmospheric pollutants, 1064nm infrared laser diodes can be used in differential absorption lidar systems to detect the concentrations of gases, such as sulfur dioxide and nitrogen dioxide by measuring the absorption of 1064nm laser by pollutants in the atmosphere. In water quality monitoring, the absorption or fluorescence spectrum of 1064nm laser by pollutants in water bodies can be analyzed to detect organic pollutants such as polycyclic aromatic hydrocarbons and heavy metal ion concentrations.

To ensure the accuracy of spectral analysis, the system needs to be calibrated regularly, and optical components such as 1064nm laser diodes are affected by the environment and need to be maintained and maintained.