Equivalence between focussed paraxial beams and the quantum harmonic oscillator

Equivalence of two mathematical forms for the bound angular momentum of the electromagnetic field

Equivalent circuit theory of radiative heat transfer on micro- and nanoscale

Equivalent Theory and Retrieval of Effective Metamaterials Parameters

Equivalent widths and band intensities of CO2

Er doped oxide nanoparticles in silica based optical fibres

ER Orionis - an almost contact W UMa system

Erfolgreicher Test einer adaptiven Optik.

Ero Imaging of QSO Host Galaxies

eROSITA

Erratum: "Distortion of grating prisms, and their use in radial velocity determinations of astronomical objects with slitless field spectrographs". [Appl. Opt., Vol. 20, p. 660 - 664 (1981)].

Erratum: Design and analysis of a two-channel three-mirror x-ray telescope [Appl. Opt. 23, 2697 (1984)]

Erratum: Grazing incidence telescopes: a new class for soft x-ray and EUV spectroscopy; addendum

Erratum: Nonstandard representations of aspheric surfaces in a telescope design [Appl. Opt. 23, 520 (1984)]

Erratum: Polarization aberration analysis of the advanced x-ray astrophysics facility telescope assembly [Appl. Opt. 31, 2301-2313 (1992)]

Erratum: Throughout of diffraction-limited field optics systems for infrared and millimetric telescopes [Opt. Commun. 9, 268 (1973)]

Erratum: Throughput of diffraction-limited field optics systems for infrared and millimetric telescopes

Erratum: Whispering Gallery Modes Inside Asymmetric Resonant Cavities [ Phys. Rev. Lett. 93, 133902 (2004)]

Error Analysis of Fabry-Perot Filter

Error and performance analysis of an infrared adaptive optics system at the 2.16 m telescope.