Raman microscopy is now well-established as one of the most powerful and versatile techniques for a diverse range of applications in both research and analytical laboratories. Its unique advantage is its ability to noninvasively characterize chemically complex and spatially inhomogeneous samples with a sub-micron spatial resolution. Modern confocal Raman scanning microscopy, which allows one to obtain two- and three-dimensional spectrochemical images of samples in various states and forms, has become a method of choice for a wide range of applications including the study of biological cells,...