Optofluidic Intracavity Spectroscopy of Canine Lymphoma and Lymphocytes

Multiple transverse mode, intracavity spectra of canine lymphoma cells in a passive Fabry–Pérot cavity are distinct from single-mode spectra of normal lymphocytes. Two-dimensional effective-index modal calculations provide insight into the nuclear size versus refractive index relationship and clarify the impact of lateral optical confinement on modal shift.