Fig.7From: Flexible minimally invasive coherent anti-Stokes Raman spectroscopy (CARS) measurement method with tapered optical fiber probe for single-cell applicationa Microscope image of PS microsphere and PMMA microsphere samples, the blue, red and green squares represent the slide background, PS microsphere, and PMMA microsphere, respectively. b CARS signals detected by the optical fiber probe and c free-space elements. The blue, red and green solid lines represent the signals of slide background, PS microsphere, and PMMA microsphere, respectivelyBack to article page