Nonlinear optics of photonic hyper-crystals: optical limiting and hyper-computing

Abstract

Photonic hyper-crystals combine the most interesting features of hyperbolic metamaterials and photonic crystals. Since the dispersion law of extraordinary photons in hyperbolic metamaterials does not exhibit the usual diffraction limit, photonic hyper-crystals exhibit light localization on deep subwavelength scales, leading to considerable enhancement of nonlinear photon-photon interaction. Therefore, similar to their conventional photonic crystal counterparts, nonlinear photonic hyper-crystals appear to be very promising in optical limiting and optical computing applications. Nonlinear optics of photonic hyper-crystals may be formulated in such a way that one of the spatial coordinates would play a role of effective time in a 2+1 dimensional "optical spacetime" describing light propagation in the hypercrystal. Mapping the conventional optical computing onto nonlinear optics of photonic hypercrystals results in a "hyper-computing" scheme, which may considerably accelerate computation time.

Experimental observation of effective gravity and two-time physics in ferrofluid-based hyperbolic metamaterials

“…We also note that practical applications of the 2T systems may also be quite interesting. For example, they may be applied in optical hypercomputing schemes, 24 which map a computation performed during a given period of time onto a much faster computation performed using a given spatial volume of a hyperbolic metamaterial. Such hypercomputing schemes were described in detail in Ref.…”

“…Such hypercomputing schemes were described in detail in Ref. 24. They may be useful in time-sensitive applications.…”

Effect of UV-Irradiation and ZnO Nanoparticles on Nonlinear Optical Response of Specific Photochromic Polymers

“…(2) ) and third order (χ (3) ) nonlinear susceptibilities in s-polarized and p-polarized laser beam after corona poling (CP), UV-irradiation (UV), and with ZnO nanoparticles (NPs) calculated for polymers P1, P2, and P3. Green arrows define increasing of χ (2) and χ (3) values, red arrows-decreasing of χ (2) and χ (3) values. The decreases of absorption intensity at 348 nm and 300 nm and increases of optical density at 238 nm with an isosbestic point at 280 nm were observed ( Figure 5) during the P1 solution irradiation process with an emission wavelength spectrum at 365 nm (UV lamp 25 W).…”

“…Silica are THG intensities of thin film and reference material, respectively. Errors of determined χ (2) and χ (3) values have been calculated by an exact differential function.…”

Ultrafast broadband nonlinear optical properties and excited-state dynamics of two bis-chalcone derivatives

“…Organic nonlinear optical (NLO) materials have attracted considerable attention in recent years due to their intriguing properties, such as structural exibility, large p-conjugated systems, and biocompatibility, and are highly promising for applications in all-optical switching, optical limiting, bioimaging, and so on. [1][2][3][4][5] It is well known that the NLO response of conjugated organic materials is closely related to the structure of the molecule, such as the size of the p-conjugated system and the introduction of electron donor and electron acceptor. [6][7][8][9][10] Hence, designing novel organic chromophores exhibiting superior NLO response is of great scientic and technological interest not only for shedding light on the nonlinear light-matter interaction but also for the development of novel photonic devices.…”