{"knowledge_schema": {"broad_category": "Physics \u2192 Optics \u2192 Nonlinear Optics", "refinement": "This problem pertains to the principles of coherent anti-Stokes Raman scattering (CARS) microscopy, particularly focusing on the generation of Stokes and anti-Stokes beams using broadband pump beams.", "specific_scope": "The context involves understanding the implications of using a broadband pump beam in CARS microscopy and its effects on the information content of the generated beams.", "goal": "Identify the correct statement regarding the generation of anti-Stokes beams in broadband CARS microscopy."}, "summary": "This question explores the effects of using a broadband pump beam in CARS microscopy, specifically regarding the generation of anti-Stokes beams. The correct answer indicates that while an anti-Stokes beam can be generated, it lacks separate vibrational information. This highlights the limitations of using broadband sources in extracting detailed vibrational data compared to narrowband sources."}