3D imaging of passive objects using dual-sided phase conjugating sequentially switched lens

Malyuskin, Oleksandr; Fusco, Vincent

doi:10.1109/aps.2010.5562317

Cited by 1 publication

(2 citation statements)

References 7 publications

(4 reference statements)

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“…The amplitude distribution function across the PCL aperture compensating for the " " loss and material propagation losses can be written as a product of the right hand sides of (17) and (18). For the focal spot location at this function can represented as follows (19) Formulae (14), (16) and (19) solve the problem of compensation for the image distortion in stratified media caused by the refraction indices difference and propagation related material loss.…”

Section: Amplitude Variation Of the Gpcl Aperture Source Distributionmentioning

confidence: 99%

“…The autofocusing of the EM source is achieved due to analogue phase conjugation of the incoming wavefront across the PCL aperture which leads to negative refraction of the EM wave front and reconstruction of the source image in the mirror-symmetric position of the source with respect to the PCL plane [16], [17]. It was shown, both experimentally and theoretically that the PCL technique enables high-resolution imaging of a source [17] or passive target [18] in air, in both near [19] and far field zones and therefore can constitute a valuable imaging modality for the short-range imaging applications. It should be noted that the possibility of PCL focal spot control in free space by applying a phase gradient across the lens aperture was experimentally demonstrated in [17].…”

Section: Introductionmentioning

confidence: 99%

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Electromagnetic Focusing and Imaging in Stratified Media Using Gradient Phase Profiled Conjugating Lens

Malyuskin

Fusco

2014

IEEE Trans. Antennas Propagat.

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High-resolution imaging of a dipole source in stratified medium based on negative refraction is presented in this paper. Compensation of the material parameter contrast at the stratified media interface is achieved using a gradient phase profiled conjugating lens (GPCL). It is shown both analytically and numerically that the phase gradient applied across the GPCL positioned at the interface of vertically stratified media enables a high-quality image of a dipole source in a mirror symmetric position with respect to the lens plane. The analytical closed form expression of the phase gradient function is derived using Huygens-Kirchhoff principle. The result is applicable to media with arbitrary stratification and material parameters, including lossy materials. The mechanism for formation of the dipole image in the stratified medium and aberration due to the dielectric contrast at the interface, particularly electromagnetic loss, is discussed in detail. The efficacy of gradient phase and amplitude aberration compensations mechanisms available through the GPCL is articulated. The results of the study are of importance in a wide range of imaging problems in stratified media for medical, civil, and military applications.

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Section: Amplitude Variation Of the Gpcl Aperture Source Distributionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electromagnetic Focusing and Imaging in Stratified Media Using Gradient Phase Profiled Conjugating Lens

Malyuskin

Fusco

2014

IEEE Trans. Antennas Propagat.

Self Cite

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show abstract

3D imaging of passive objects using dual-sided phase conjugating sequentially switched lens

Cited by 1 publication

References 7 publications

Electromagnetic Focusing and Imaging in Stratified Media Using Gradient Phase Profiled Conjugating Lens

Electromagnetic Focusing and Imaging in Stratified Media Using Gradient Phase Profiled Conjugating Lens

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