On the asymptotic evaluation of diffraction integrals with a special view to the theory of defocusing and optical contrast

Phase contrast, a new method for the microscopic observation of transparent objects

1942 • 948 citations

Mathematical Theory of Optics

2023 • 749 citations

Mathematical Theory of Optics

1965 • 534 citations

Sulla propagazione libera e perturbata delle onde luminose in un mezzo isotropo

1888 • 121 citations

An asymptotic treatment of diffraction problems

1949 • 87 citations

On the Anomalous Propagation of Phase in the Focus

1938 • 54 citations

Note on the anomalous propagation of phase in the focus

1940 • 10 citations