Multimedia Gallery
Aerospace / Sensing Items
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Aberrated Wavefront Decomposition (Model Image)A planar wavefront is perturbed by a Zernike function. A display file of the wavefront map is created which is then radially averaged. A differential plot is created by subtracting one display file from the... |
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Airy Rings (Model Image)Airy rings produced by diffraction through a circular aperture simulated by an ideal lens and a truncated plane wave. The "depth" coordinate of the FIELD command in ASAP is used to show ring separation and intensities at locations leading up to the detector. This multi-dimensional data... |
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BRO Engineering Designs, Fabricates, and Tests realSens® Gas Detection System (Case Study Movie)Bob Pagano, Sr. Optical Engineer, narrates a case study of the design, fabrication, and testing of the realSens® gas detection system by BRO Engineering Services. See how BRO Engineering approaches conceptual design, preliminary design, detailed design, opto-mechanical packaging, prototyping,... |
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Confocal Unstable Resonator (Model Image)Confocal unstable resonator showing propagation of a complex beam shape. Uses Gaussian Beam Decomposition with edge clipping for the field calculation. Pictures show the field at various propagation... |
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Ghost Analysis of a Triplet Lens (Model Image)A triplet lens system used to demonstrate ghost image analysis in ASAP. Non-sequential raytracing produces children and grandchildren rays that generate alternate paths to the target. These paths are easily selected out for analysis using the PATHS... |
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Grating Shearing Interferometer (Model Image)Single beam analysis of a Grating Shearing Interferometer. Two pairs of diffraction gratings are placed at the focus of a parabolic mirror under test. Each pair of gratings consists of two gratings with slightly different periods; these are located a short distance apart. Light reflected from the... |
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Introduction to Stray Light Analysis in ASAP (Demo Movie)System modeling for stray light analysis in ASAP, identification of stray light paths and characteristics, and stray light elimination... |
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Irradiance at Lyot Stop Plane (Model Image)Lyot stops are used to block stray light that is diffracted off of apertures and obscurations. These stops must be large enough to block unwanted stray light; but if they are too large they also block the desired signal. The ASAP Gaussian Beam decomposition algorithm calculates the diffracted... |
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Multi-Functional Telescope (Model Image)BRO Engineering Services designed, prototyped and tested this off-axis aspheric telescope incorporating multiple optical sub-systems sharing a common optical path. Conceptual development to prototype assembly was completed on the expedited schedule required by the... |
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Multi-Wavelength Coating Model (Model Image)An ASAP model using a multiple wavelength coating applied to a lens taken from user-supplied data in angular space. Separate s and p polarization for each wavelength is taken into account. A three-color source is traced through through the lens with this coating applied to the front and back. The... |