Results 11 to 20 of about 1,618 (216)
Wavefront coding with adaptive optics
Proceedings of SPIE, 2015 We have implemented an extended depth of field optical system by wavefront coding with a micromachined membrane deformable mirror. This approach provides a versatile extension to standard wavefront coding based on fixed phase mask.
Oleg Soloviev, Michel Verhaegen
exaly +4 more sources
Possible Application of Wavefront Coding to the LSST [PDF]
, 2006 Wavefront Coding has been applied as a means to increase the effective depth of focus of optical systems. In this note I discuss the potential for this technique to increase the depth of focus of the LSST and the resulting advantages for the construction
Langeveld, Willy
core +6 more sources
Use of a spatial light modulator as an adaptable phase mask for wavefront coding [PDF]
Journal of Modern Optics, 2010 A wavefront-coded imaging system employing a spatial light modulator (SLM) for the agile implementation of phase masks is presented. The SLM is a liquid crystal display that can be modulated to implement cubic phase masks of variable coding strength ...
Guillem Carles +2 more
exaly +2 more sources
Chromatic Aberration in Wavefront Coding Imaging with Trefoil Phase Mask
PhotonicsThe refractive index of the lenses used in optical designs varies with wavelength, causing light rays to fail when focusing on a single plane. This phenomenon is known as chromatic aberration (CA), chromatic distortion, or color fringing, among other ...
Miguel Olvera-Angeles +2 more
doaj +2 more sources
Jacobi–Fourier phase mask for wavefront coding [PDF]
Optics and Lasers in Engineering, 2020 In this work we propose Jacobi–Fourier phase masks for wavefront coding-based imaging systems. The optical properties of the phase mask is study in detail and numerical simulation are shown.
Arines Piferrer, Justo +4 more
core +3 more sources
Reprogrammable reflection-transmission integrated coding metasurface for real-time terahertz wavefront manipulations in full-space [PDF]
Scientific ReportsIn recent years, there has been notable advancement in programmable metasurfaces, primarily attributed to their cost-effectiveness and capacity to manipulate electromagnetic (EM) waves.
Parsa Farzin +2 more
doaj +2 more sources
110 °C range athermalization of wavefront coding infrared imaging systems
Infrared Physics and Technology, 2017 110 °C range athermalization is significant but difficult for designing infrared imaging systems. Our wavefront coding athermalized infrared imaging system adopts an optical phase mask with less manufacturing errors and a decoding method based ...
Zelin Shi
exaly +1 more source
Learning Wavefront Coding for Extended Depth of Field Imaging [PDF]
IEEE Transactions on Image Processing, 2021 Depth of field is an important factor of imaging systems that highly affects the quality of the acquired spatial information. Extended depth of field (EDoF) imaging is a challenging ill-posed problem and has been extensively addressed in the literature ...
Gotchev, Atanas +4 more
core +6 more sources
Coherent detector for the non-separability measurement of vectorial structured light [PDF]
Light: Science & ApplicationsAtmospheric turbulence distorts the complex wavefront of light in free-space optical communication systems, leading to bit errors and even communication interruptions.
Yize Liang +13 more
doaj +2 more sources
Infrared imaging with a wavefront-coded singlet lens
Optics Express, 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 approximate halving in length and mass of the optical system
Muyo, Gonzalo +11 more
core +3 more sources