Quantitatively Correlated Amplitude Holography Based on Photon Sieves

Abstract

source method, panel method, Fresnel diffraction method, and angular spectrum method. These algorithms can realize both 2D and 3D holography reconstruction at any distance between hologram and image plane. [6] In addition, there are also some adaptive methods for holographic-related technology of many specific functions. [7] Meanwhile, conventional CGHs based on spatial light modulators (SLM) inevitably generate reconstruction images with limited resolution and low field-of-view (FOV) because of large pixel size compared with wavelength. [8] Hence, sub-wavelength pixel size, high-resolution devices are highly demanded.Metasurfaces are ultrathin, artificial layered devices that are composed of nanoantenna or nanoresonator arrays, which have shown great promises for manipulating the phase, amplitude, polarization, angular momentum, and frequency of light with prior spatial resolution. [9][10][11][12][13][14] In previously reported works, phase-only metasurface holograms are employed most widely due to the excellent wavefront modulation properties. Abrupt phase discontinuities can be generated within ultrashort distance, and different phase modulation methods by means of resonance phase [15][16][17][18][19] or Pancharatnam-Berry (PB) phase [7,17,[19][20][21] have been revealed. In the phaseonly holographic algorithm, the amplitude distribution is usually uniform. However, as another important design freedom, the amplitude can also be applied to the reconstruction of the target image, known as amplitude holography. In particular, the transitivity or reflectivity of the local unit can be quantitatively divided to different amplitude levels. For simplicity, binary amplitude modulation, that is, 1 bit digital coding of 0 and 1, can also reproduce holographic images with satisfactory quality. For example, binary amplitude holography based on the scattering of carbon nanotubes array has been demonstrated. [22] Specially, photon sieves consisting of randomly distributed nanoholes are among the simplest and effective amplitude modulation schemes of all the metasurface devices. Such photon sieves can possess extraordinary transmission properties. One of its application is to replace the translucent bands of Fresnel zone plates to effectively enhance the focusing behavior. [23][24][25] In addition, the concept of photon sieves is also adopted to reconstruct the diffraction beams and vortex beams. [26][27][28] Because of the simple fabrication and polarization-independent properties, photon sieves can be used as an ideal medium for binary As an excellent holographic information carrier, metasurface holograms possess the advantages of subwavelength footprint, leading to large field of view and high resolution. Meanwhile, intelligent algorithms should be developed to fully exploit the flexible modulation properties provided by metasurfaces. Here, two amplitude holograms with quantitatively correlation are realized using the photon sieve as the amplitude modulation device. A new iterative algorithm is developed to obtain the ampl...

Recent advances in multi-dimensional metasurfaces holographic technologies

“…Furthermore, Walther et al [58] explicitly used nanoapertures within the metal film of different sizes to tune the transmission coefficients and achieved binary amplitude holography at two wavelengths. Recently, Xu et al [10] investigated the correlation between different photon sieves and proposed an amplitude-only holographic strategy which can generate two different binary amplitude holograms as shown in Fig. 1a.…”

“…With the development of nanofabrication technologies, metasurfaces consisting of arrays of plasmonic or dielectric nanoantennas have attracted enormous interest due to their ability to arbitrarily tailor the fundamental properties of the electromagnetic wavefront such as amplitude [10][11][12], phase [13][14][15][16][17], frequency [18,19], polarization [20][21][22] and orbital angular momentum (OAM) [23][24][25] within ultrashort distance. Meanwhile, simultaneously multiple parameters modulation methods have also been demonstrated [26][27][28][29][30], which make metasurface become a potential substitute for the traditional bulky optical elements.…”

“…a Schematic illustrations of demonstrated photon sieves. Two completely different holographic images can be reconstructed through quantitatively correlated amplitude modulations[10]. b Complex amplitude holography based on dielectric metasurfaces composed of X-shaped meta-atoms.…”

Advances in exploiting the degrees of freedom in nanostructured metasurface design: from 1 to 3 to more

“…They further proposed the design of ultrabroadband and large angle-of-view holograms based on photon sieves [36]. In 2019, with photon sieves, Xu et al realized two amplitude holograms that are related to each other [37]. In terms of nanoprintings, amplitude manipulation can enable grayscale image display, and with delicate design, color printings can be achieved when light beams with different wavelengths illuminate on the metasurface.…”

Giant polarization anisotropic optical response from anodic aluminum oxide templates embedded with plasmonic metamaterials

“…Metamaterials consisting of subwavelength metallic/dielectric nanostructures have received increasing attention due to their unprecedented ability to manipulate light [1]. They have shown great promise for a wide variety of practical applications, such as optical communication [2,3], bio-sensing [4,5], imaging [6,7], data storage [8,9], displays [10][11][12][13], invisibility cloaking [14,15], and photovoltaics [16,17]. An important feature of metamaterials is the strong light-matter interaction and the possibility of introducing strong optical anisotropy (i.e., a phenomenon that is observed when the speed of light in a medium depends on the polarization plane of the incident electromagnetic wave), which is sensitive to the angle of incidence and polarization state of the incoming light, making them attractive candidates for polarization optics [18][19][20][21][22][23].…”