Several types of optical imaging are utilized in cancer research and treatment: - Fluorescence Imaging: Uses fluorescent markers to highlight cancer cells. - Bioluminescence Imaging: Involves the use of light-producing enzymes to study biological processes. - Confocal Microscopy: Provides high-resolution images of cells and tissues. - Multiphoton Microscopy: Allows imaging of deeper tissue layers with reduced phototoxicity. - Optical Coherence Tomography (OCT): Offers cross-sectional images of tissues. - Raman Spectroscopy: Identifies molecular composition and structure.