Introduction: Laser Resonance Raman Spectroscopy is one or several characteristic Raman bands of this molecule that reach the normal Raman bands of 104-106 when the laser frequency is close to or coincident with an electron absorption peak of the molecule to be detected Times, and observed in the normal Raman effect is difficult to appear, its intensity can be compared with the fundamental frequency vibration spectrum. Since the absorption peaks of organic molecules usually appear in the UV or near-ultraviolet (blue) region, the excitation Raman scattering light source usually uses a blue or ultraviolet laser, but it needs to consider the problem of fluorescence interference in practical applications. Generally speaking, the ultraviolet region Excitation can effectively avoid the problem of fluorescence interference, the actual application needs to be combined with the absorption spectrum of the test object to choose. Features: Optional Tunable Steady-State Laser Enables Resonance Raman Spectroscopy, Resonant Wavelength Range, Resonance Critical Point, Resonant Wavelength Test UV excitation can avoid fluorescence interference Taking full advantage of the selective excitation of the UV resonance enhancement effect of certain research subjects, several orders of magnitude of signal intensity Dual notch monochromator instead of notch filter (or edge filter), the excitation wavelength can be arbitrarily selected and replaced without the need to re-calibrate the optical path Technical Parameters: The main model: Finder Ultimate Triple cascade spectrometer: Omni-λ180Di + Omni- λ500i Omni-λ500Di + Omni-λ500i Raman spectral range: 325 nm Excitation: 50-5,000 cm-1 532 nm excitation: 15-5,000 cm-1 (low wave number <10 cm-1 based on ultra-low wave number modules) Resolution: ≤1cm-1 (@ 585.25nm) Laser: Optional: 244nm, 266nm, 325nm (≥30mW, TEM00), 532nm (≥50mW, TEM00), Narrow Line Tunable Laser (UV-NIR) Detector type: deep cooling back light CCD Detector response range: 200-1000nm (according to different needs matching different range of enhanced CCD)
Introduction: Laser Resonance Raman Spectroscopy is one or several characteristic Raman bands of this molecule that reach the normal Raman bands of 104-106 when the laser frequency is close to or coincident with an electron absorption peak of the molecule to be detected Times, and observed in the normal Raman effect is difficult to appear, its intensity can be compared with the fundamental frequency vibration spectrum. Since the absorption peaks of organic molecules usually appear in the UV or near-ultraviolet (blue) region, the excitation Raman scattering light source usually uses a blue or ultraviolet laser, but it needs to consider the problem of fluorescence interference in practical applications. Generally speaking, the ultraviolet region Excitation can effectively avoid the problem of fluorescence interference, the actual application needs to be combined with the absorption spectrum of the test object to choose.
