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Optical Engineering: The Journal of SPIE, 2023
. Photovoltaic (PV) conversion is highly wavelength-dependent. The efficiency of a PV system is maximum when converting photons of energy close to the bandgap energy of solar cells.
A. Khan, H. L. Yadav
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. Photovoltaic (PV) conversion is highly wavelength-dependent. The efficiency of a PV system is maximum when converting photons of energy close to the bandgap energy of solar cells.
A. Khan, H. L. Yadav
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IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2021
Transcranial ultrasound therapy has become a noninvasive method for treating neurological and psychiatric disorders, and studies have further demonstrated that multitarget transcranial ultrasound therapy is a better solution.
Jiaru He +6 more
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Transcranial ultrasound therapy has become a noninvasive method for treating neurological and psychiatric disorders, and studies have further demonstrated that multitarget transcranial ultrasound therapy is a better solution.
Jiaru He +6 more
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Lens array-based holographic 3D display with an expanded field of view and eyebox.
Optics Letters, 2023Conventional spatial light modulator (SLM)-based holographic 3D display faces limited field of view (FOV) and eyebox, due to its limited pixel number. In this paper, a lens array is used to expand the FOV and eyebox of an SLM-based holographic display ...
Zi Wang +5 more
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Holographically Generated Lens
Applied Optics, 1974A holographic lens has been made that utilizes some of our earlier work on holographic aberration correction [J. E. Ward, D. C. Auth, and F. P. Carlson, Appl. Opt. 10, 896 (1971)]. The lens properties are obtained by interferometrically recording a plane wave and a pinhole generated spherical wave. The theoretical analysis is followed by the results of
A K, Richter, F P, Carlson
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Applied Optics, 1995
Calculation of the optical path difference between the input and the focal planes of a lens is used to compute the phase introduced by the lens. This represents a new way to create computer-generated optical elements. The phase change that takes place during the light propagation between the computer-generated hologram and the image plane is taken into
J R, Moya-Cessa +3 more
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Calculation of the optical path difference between the input and the focal planes of a lens is used to compute the phase introduced by the lens. This represents a new way to create computer-generated optical elements. The phase change that takes place during the light propagation between the computer-generated hologram and the image plane is taken into
J R, Moya-Cessa +3 more
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Bifocal-polarization holographic lens
Optics Letters, 2004We present a holographic lens with novel features recorded in an azopolymer film. Two holographic modulations, bulk birefringence and surface relief, are induced in the medium at the same time. The resultant holographic element has two focal planes, and the polarization of light in the focal points depends on the polarization of the incident light ...
Geminiano, Martinez-Ponce +5 more
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Holographic spatiotemporal lens
SPIE Proceedings, 2011We propose a holographic spatiotemporal lens to improve spatial resolution of two-photon excitation spot as a new focusing technique of femtosecond laser pulse. Femtosecond laser pulses dispersed by a diffraction grating are irradiated to a chirped diffractive lens displayed on a spatial light modulator.
Kouhei Kimura +2 more
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Applied Optics, 2020
Coaxial multiple holographic lenses as high-dispersion elements are developed for a spectral confocal displacement measurement device. Wavelength and coaxial spatial multiplexing methods are used to record the holographic lens with two coaxial foci.
Yangyu Liu +5 more
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Coaxial multiple holographic lenses as high-dispersion elements are developed for a spectral confocal displacement measurement device. Wavelength and coaxial spatial multiplexing methods are used to record the holographic lens with two coaxial foci.
Yangyu Liu +5 more
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The Journal of the Acoustical Society of America, 1978
The theory of an acoustical lens is presented and the construction of such a lens is described. In the present work three experiments are described, in which images of acoustical objects are formed. With the acosutical lens the intermediate step of the conventional acoustical holography of transfering the acoustical hologram to an optical system is ...
C. G. Stephanis, G. D. Hampsas
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The theory of an acoustical lens is presented and the construction of such a lens is described. In the present work three experiments are described, in which images of acoustical objects are formed. With the acosutical lens the intermediate step of the conventional acoustical holography of transfering the acoustical hologram to an optical system is ...
C. G. Stephanis, G. D. Hampsas
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IEEE Antennas and Wireless Propagation Letters, 2022
A deep-learning enabled discrete dielectric lens (DDL) antenna with terahertz hologram reconfigurability is proposed. The antenna is constructed by two cascaded discrete dielectric lenses, which are designed based on a diffractive deep neural network ...
Dashuang Liao +4 more
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A deep-learning enabled discrete dielectric lens (DDL) antenna with terahertz hologram reconfigurability is proposed. The antenna is constructed by two cascaded discrete dielectric lenses, which are designed based on a diffractive deep neural network ...
Dashuang Liao +4 more
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