The Generation of Bessel Beam and Its Application in Millimeter Wave Imaging

Meng, Hongfu; Xiang, Bo; Zhang, Jinglei; Dou, Wenbin; Yu, Yanzhong

doi:10.1007/s10762-013-0037-9

Cited by 25 publications

(16 citation statements)

References 17 publications

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“…69 Additionally, the long, narrow line of high-intensity radiation makes Bessel beams well suited to certain forms of imaging, which have been demonstrated across the electromagnetic spectrum. 70,71 …”

Section: Bessel Beammentioning

confidence: 99%

Tutorial: Terahertz beamforming, from concepts to realizations

et al. 2018

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The terahertz range possesses significant untapped potential for applications including high-volume wireless communications, noninvasive medical imaging, sensing, and safe security screening. However, due to the unique characteristics and constraints of terahertz waves, the vast majority of these applications are entirely dependent upon the availability of beam control techniques. Thus, the development of advanced terahertz-range beam control techniques yields a range of useful and unparalleled applications. This article provides an overview and tutorial on terahertz beam control. The underlying principles of wavefront engineering include array antenna theory and diffraction optics, which are drawn from the neighboring microwave and optical regimes, respectively. As both principles are applicable across the electromagnetic spectrum, they are reconciled in this overview. This provides a useful foundation for investigations into beam control in the terahertz range, which lies between microwaves and infrared light. Thereafter, noteworthy experimental demonstrations of beam control in the terahertz range are discussed, and these include geometric optics, phased array devices, leaky-wave antennas, reflectarrays, and transmitarrays. These techniques are compared and contrasted for their suitability in applications of terahertz waves.

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Section: Bessel Beammentioning

confidence: 99%

Tutorial: Terahertz beamforming, from concepts to realizations

et al. 2018

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“…However, they are difficult to generate high‐order Bessel beams. In radio frequency, the metasurface, the reflectarray, the axicon, and the binary optical element are proposed to generate the Bessel beams . However, the binary optical element in Reference is too difficult to be fabricated.…”

Section: Introductionmentioning

confidence: 99%

“…In radio frequency, the metasurface, the reflectarray, the axicon, and the binary optical element are proposed to generate the Bessel beams. [9][10][11][12] However, the binary optical element in Reference 11 is F I G U R E 1 Model of simulated transforming lens too difficult to be fabricated. 3D printing dielectric lens antenna and metallization antenna operating at millimeter-wave and terahertz band have many excellent properties, which have been demonstrated in References 13-17.…”

Section: Introductionmentioning

confidence: 99%

Generation of Bessel beams with 3D‐printed lens

Gan

Meng

Chen

et al. 2019

Int J RF Microw Comput Aided Eng

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In this article, the 3D‐printed dielectric lens is proposed to generate Bessel beam in millimeter‐wave band. The dielectric lens is made of many square unit cells with the side length of a half wavelength. The unit cells with different thicknesses generate different insertion phase shift to the transmitted millimeter wave. The insertion phase distribution of the lens is calculated by comparing the phase distributions of the incident Gaussian beam and the desired output Bessel beam. Three types of lenses are simulated and fabricated using 3D printing technology with Nylon. The measured magnitude and phase distributions of zero‐order Bessel beam agree with the simulated results very well and the measured phase distributions of the first‐order Bessel beam carry orbital angular momentum.

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“…Bessel beams were firstly put forward as non-diffracting, exact nonsingular solutions of the scalar wave equation in 1987 [1], whose field amplitudes can be described by Bessel function of the first kind. Although the ideal Bessel beams with infinite transverse extent and energy cannot be produced experimentally, the quasi-Bessel beams with finite size approximation can be generated by use of holographic elements [2], an axicon [3,4,5], a Spatial Light Modulator (SLM) [6], a conical mirror [7] or a Digital Micro Mirror device (DMD) [8]. Because of their special properties, such as non-diffraction [1], selfreconstruction [9] and superluminality [10], Bessel beams have prospective applications in the fields of optical manipulation [11], the design of optics devices, imaging [12] and communication [13].…”

Section: Introductionmentioning

confidence: 99%

“…Although the ideal Bessel beams with infinite transverse extent and energy cannot be produced experimentally, the quasi-Bessel beams with finite size approximation can be generated by use of holographic elements [2], an axicon [3,4,5], a Spatial Light Modulator (SLM) [6], a conical mirror [7] or a Digital Micro Mirror device (DMD) [8]. Because of their special properties, such as non-diffraction [1], selfreconstruction [9] and superluminality [10], Bessel beams have prospective applications in the fields of optical manipulation [11], the design of optics devices, imaging [12] and communication [13]. Most noteworthy, investigation results show that beams with orbital angular momentum (OAM), which are also called vortex beams, have great potential in improving the communication efficiency [14][15][16], hence the high-order Bessel beams [17][18][19], which belong to a class of OAM beams, are worthy of more attention.…”

Section: Introductionmentioning

confidence: 99%

Intensity, phase, and polarization of a vector Bessel vortex beam through multilayered isotropic media

Honary

Wang

et al. 2018

Appl. Opt.

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This paper investigates the characteristics of reflected and transmitted fields of a vector Bessel vortex beam through multilayered isotropic media on the basis of the vector angular spectrum expansion and presents the effects of media on intensity, phase, and polarization. The method is verified by studying the reflection and transmission on a single interface at vertical incidence. For both paraxial and nonparaxial incident beam cases, numerical simulations of the field components and the time-averaged Poynting vector power density of the reflected and transmitted beams for the three-layered media are presented and discussed in detail. It is shown that as the incident angle increases, the magnitude distribution of the reflected beams illustrates significant distortions and no longer represents similar patterns to that of the incident beam, whereas the magnitude distribution of the transmitted beams can maintain similar profiles to the incident beam, apart from the notable distortion of the central ring. For the same incident angle, the effects of media on the magnitude distribution for the nonparaxial case are more evident than those for the paraxial case. The results of phase distribution and polarization of the reflected and transmitted fields show that as the incident angle increases, the distortion of the phase distribution and polarization for the reflected fields are more significant and the topological charge cannot be preserved.

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The Generation of Bessel Beam and Its Application in Millimeter Wave Imaging

Cited by 25 publications

References 17 publications

Tutorial: Terahertz beamforming, from concepts to realizations

Tutorial: Terahertz beamforming, from concepts to realizations

Generation of Bessel beams with 3D‐printed lens

Intensity, phase, and polarization of a vector Bessel vortex beam through multilayered isotropic media

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