Imaging in fluorescence direct-view microscopy

Autor: S. J. Hewlett, D. T. Fewer, Eithne M. McCabe
Rok vydání: 1998
Předmět:
Zdroj: Optics Communications. 152:393-402
ISSN: 0030-4018
DOI: 10.1016/s0030-4018(98)00174-6
Popis: We derive a general theory of imaging for the fluorescence direct-view microscope (DVM) in terms of the system's incoherent optical transfer function. Particular attention is given to both the form of the in-focus transfer function and the optical sectioning capability of the instrument in the presence of (i) a spatially incoherent source and (ii) a spatially coherent (laser) source. Unlike its brightfield counterpart, the imaging properties of the fluorescence DVM are shown to be relatively insensitive to the source coherence, provided the pinhole spacing-to-radius ratio is kept sufficiently large. This suggests that the use of a laser source in fluorescence direct-view microscopy could prove to be extremely beneficial as regards increased light throughput and cost-effectiveness.
Databáze: OpenAIRE