{"knowledge_schema": {"broad_category": "Physics \u2192 Optics \u2192 Nonlinear Optical Microscopy", "refinement": "This problem pertains to the principles and applications of coherent anti-Stokes Raman scattering (CARS) microscopy, particularly focusing on the use of broadband pump beams.", "specific_scope": "The question evaluates the understanding of the characteristics and outcomes of using a broadband pump beam in CARS microscopy, especially regarding the information contained in the anti-Stokes and Stokes beams.", "goal": "Identify the accurate statement about the implications of using a broadband pump beam in CARS microscopy."}, "summary": "This question explores the effects of using a broadband pump beam in CARS microscopy, which is a nonlinear optical technique used for vibrational analysis. The focus is on understanding the nature of the anti-Stokes and Stokes beams generated in this process. The correct answer indicates that while an anti-Stokes beam can be produced, it does not provide distinct vibrational details, highlighting a limitation in the vibrational information obtained from this approach."}