AO optical tolerancing requirements for a segmented active telescope

AO with LGS and mesospheric layer sensing

AO-Assisted Observations of Ultra-Compact H II Regions

AOPDF-shaped optical parametric amplifier output in the visible

Aperiodic lattices for tunable photonic bandgaps and localization

Aperture averaging effects in stellar scintillation

Aperture efficiency enhancement in a Cassegrain system by means of a dielectric lens

Aperture interchange module (AIM) diffraction limited: NIR spectroscopy with 3D and ALFA

Aperture Sizing Strategies for Astronomical Adaptive Optics System Optimization

Aperture synthesis imaging through turbulence with the aid of lucky imaging

Aperture synthesis imaging with the Keck Interferometer

Aperture synthesis with integrated optical devices

Aplanatic Corrector Designs for the Extremely Large Telescope

Aplanatic grazing incidence diffraction grating - A new optical element

Aplanatic two mirror telescope from near-normal to grazing incidence

Aplanatic Wolter Type-I telescope design: is there a practical advantage?

Apochromatic color correction using liquid lenses

Apodization for maximum Strehl ratio and specified Rayleigh limit of resolution.

Apodization of telescopes working in a turbulent medium

Apodized Pupil Lyot Coronagraph, Working without Lyot Stop