For Raman spectroscopy detection technology, fluorescence is undoubtedly a source of interference. To mitigate or eliminate the fluorescence effect, scientists and equipment manufacturers have conducted in-depth research, resulting in the development of Fourier Transform Raman Spectroscopy (FT-Raman) technology. Instruments designed with this technology, known as Fourier Transform Raman Spectrometers (FTRS), have been widely applied in research fields such as organic chemistry, polymers, biochemistry, and analytical chemistry.

The principle of the FTRS involves irradiating the sample with infrared laser light. The mixed signals generated are filtered through optical filters, leaving only the Raman signals. These signals are then modulated by a Michelson interferometer to form an interferogram, which is subjected to Fourier transformation to obtain the Raman spectrum of the sample. FTRS offers numerous advantages, including reduced fluorescence interference, high sensitivity, precise spectral frequency, high signal-to-noise ratio, high resolution, rapid detection speed, multi-channel capabilities, and comprehensive spectrum integrity. For example, the 1064nm laser wavelength is an advantageous infrared wavelength in Raman spectroscopy applications, as it significantly reduces fluorescence signals.

At Beijing RealLight Technology Co., Ltd. (RealLight), we focus on the R&D and production of diode lasers. Our RealStable® 14SBTF and RealStable® 08LTR packaged modules offer options for the infrared wavelength of 1064nm with power outputs of up to 600mW, effectively suppressing fluorescence. Their ultra-narrow linewidth ensures exceptionally high spectral purity and low phase noise, dramatically improving signal contrast for Raman spectroscopy applications.

RealLight aspires to be your trusted partner, using laser technology to create value for you!

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