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Generalization of the Lyot filter and its application to snapshot spectral imaging.
A snapshot multi-spectral imaging technique is described which employs multiple cascaded birefringent interferometers to simultaneously spectrally filter and demultiplex multiple spectral images onto… Expand
Infrared imaging with a wavefront-coded singlet lens.
- G. Muyo, A. Singh, M. Andersson, David A. Huckridge, A. Wood, A. Harvey
- Physics, Medicine
- Optics express
- 9 November 2009
We describe the use of wavefront coding for the mitigation of optical aberrations in a thermal imaging system. Diffraction-limited imaging is demonstrated with a simple singlet which enables an… Expand
Phase pupil functions for reduction of defocus and spherical aberrations.
Radially symmetric pupil plane phase retardation functions are derived that extend focal depth and alleviate third-order spherical aberration (SA) effects. The radial symmetry of these functions… Expand
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- A. Harvey
Passive imaging using mm-waves offers very significant advantages in scientific and military surveillance. However, the relatively long wavelengths mean that for the resolutions that are typically… Expand
Birefringent Fourier-transform imaging spectrometer.
Fourier-transform imaging spectrometers offer important advantages over other spectral imaging modalities, such as, a wider free spectral range, higher spectral resolutions and, in low-photon-flux… Expand
Circularly symmetric phase filters for control of primary third-order aberrations: coma and astigmatism.
- S. Mezouari, G. Muyo, A. Harvey
- Medicine, Physics
- Journal of the Optical Society of America. A…
- 1 May 2006
A quartic phase retardation function is described that reduces the variation of the intensity of the focal point of incoherent imaging systems suffering from primary third-order aberrations limited… Expand
Image artifacts in hybrid imaging systems with a cubic phase mask.
We present the first analytical analysis of image artifacts in defocused hybrid imaging systems that employ a cubic phase-modulation function. We show that defocus artifacts have the form of image… Expand
Single-pulse, Fourier-transform spectrometer having no moving parts.
A Wollaston prism is used in the design of a polarizing Fourier-transform spectrometer with no moving parts. The effective path difference between orthogonally polarized components varies across the… Expand
Fidelity optimization for aberration-tolerant hybrid imaging systems.
Several phase-modulation functions have been reported to decrease the aberration variance of the modulation-transfer-function (MTF) in aberration-tolerant hybrid imaging systems. The choice of this… Expand
Multi-aperture foveated imaging.
We demonstrate foveated imaging using a planar array of identical cameras combined with a prism array and superresolution reconstruction of a mosaicked image with a foveal variation of 5.9:1 and a quadrupling of the field of view. Expand