SFG serves as a powerful tool in advanced spectroscopy and imaging, enabling researchers to probe molecular structures at interfaces and surfaces with exceptional sensitivity and selectivity. This technique is particularly valuable in surface science, biological imaging, chemical analysis, and materials characterization, where it reveals molecular interactions and structural properties that conventional optical methods cannot easily access.
Raicol’s specialized crystals enhance SFG spectroscopy capabilities: Our BBO crystals feature very wide transparency ranges extending into the deep UV (190-1780 nm), making them ideal for broad-spectrum SFG applications. With high damage thresholds (5 GW/cm² at 1064 nm) and excellent optical homogeneity, BBO crystals ensure reliable performance in demanding spectroscopic setups. For mid-infrared applications, our PPLN crystals with their broad transparency range (420-5200 nm) and high nonlinear coefficient (d₃₃ ~27 pm/V) provide exceptional efficiency. Additionally, our Super Polished LBO crystals offer ultra-low surface roughness (≤3Å RMS) and bulk absorption as low as 2 ppm/cm at 1064 nm, minimizing noise and maximizing signal quality in sensitive spectroscopic measurements.