Telescopic systems with dynamic nonlinear optical correction for distortions

Vasil'ev, Michael V.; Venediktov, Vladimir Yu.; Leshchev, Alexey

doi:10.1070/qe2001v031n01abeh001883

Cited by 17 publications

(3 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This scheme, demonstrated in Ref. [3], requires two pump beams. What is more, since third-order nonlinearity is weak, the pump powers must be extremely high in order to achieve a reasonably high nonlinear power reflection coefficient, i.e.…”

Section: Introductionmentioning

confidence: 98%

Restoration of blurred images based on phase conjugation by using single second-order nonlinear parametric processes

Ding

2014

Ultrafast Nonlinear Imaging and Spectroscopy II

View full text Add to dashboard Cite

We review our previous result: backward difference-frequency generation can be exploited to achieve phase conjugation in a second-order nonlinear medium. The backward configuration can be utilized to achieve broadband quasi-phasematching, compared with the forward counterpart. Our calculation shows that a nonlinear reflectivity of close to 100% is achievable from a laser emitting an output power of ≈ 1 mW. Such an efficient phase conjugator is made feasible by placing the nonlinear medium inside a pump laser cavity. In addition, a Fabry-Perot cavity at the input frequency is used to significantly improve the nonlinear reflectivity. In our previous experimental result, we demonstrated that broadband and polarization-insensitive phase conjugation, achieved based on difference-frequency generation in a second-order nonlinear composite consisting of stacked KTP plates, was exploited to restore blurred images due to phase distortion as a novel scheme. Due to the quasi-phase matching in the stacked KTP crystals, our result reveals that the image restoration is insensitive to the polarization direction and wavelength of the input beam.

show abstract

Section: Introductionmentioning

confidence: 98%

Restoration of blurred images based on phase conjugation by using single second-order nonlinear parametric processes

Ding

2014

Ultrafast Nonlinear Imaging and Spectroscopy II

View full text Add to dashboard Cite

show abstract

“…They also solve the problem of dynamic holographic correction of distortions. [1][2][3][4][5] Thin dynamic holograms formed in an LC layer are free of limitations imposed by angular and spectral selectivities and, therefore, can be used in wide fields of view and a wide spectral range. However, according to the traditional understanding of the mechanism of dynamic grating formation in LC, the fringe of such grating has to have symmetrical profiles.…”

Section: Introductionmentioning

confidence: 99%

Asymmetric dynamic phase holographic grating in nematic liquid crystal

et al. 2016

View full text Add to dashboard Cite

A new scheme for recording a dynamic phase grating with an asymmetric profile in C 60 -doped homeotropically aligned nematic liquid crystal (NLC) was presented. An oblique incidence beam was used to record the thin asymmetric dynamic phase holographic grating. The diffraction efficiency we achieved is more than 40%, exceeding the theoretical limit for symmetric profile gratings. Both facts can be explained by assuming that a grating with an asymmetric saw-tooth profile is formed in the NLC. Finally, physical mechanism and mathematical model for characterizing the asymmetric phase holographic grating were presented, based on the photo-refractive-like (PR-like) effect.

show abstract

“…However, schemes based on thin (plane) dynamic holographic correctors have also been proposed recently [2]. Such schemes are free of the limitations related to spectral and angular selectivity and, therefore, can be used in systems with a large field of view and/or operating with incoherent and nonmonochromatic light.…”

Section: Introduction Thin Dynamic Holograms With An Asymmetric Frinmentioning

confidence: 99%

10.1007/s11449-008-2024-7

2010

CrossRef Listing of Deleted DOIs

View full text Add to dashboard Cite

show abstract

Telescopic systems with dynamic nonlinear optical correction for distortions

Cited by 17 publications

References 51 publications

Restoration of blurred images based on phase conjugation by using single second-order nonlinear parametric processes

Restoration of blurred images based on phase conjugation by using single second-order nonlinear parametric processes

Asymmetric dynamic phase holographic grating in nematic liquid crystal

10.1007/s11449-008-2024-7

Contact Info

Product

Resources

About