Angular and polarization properties of a photonic crystal slab mirror

Abstract

It was recently demonstrated that a photonic crystal slab can function as a mirror for externally incident light along a normal direction with near-complete reflectivity over a broad wavelength range. We analyze the angular and polarization properties of such photonic crystal slab mirror, and show such reflectivity occurs over a sizable angular range for both polarizations. We also show that such mirror can be designed to reflect one polarization completely, while allowing 100% transmission for the other polarization, thus behaving as a polarization splitter with a complete contrast. The theoretical analysis is validated by comparing with experimental measurements.

Mesoscale cavities in hollow-core waveguides for quantum optics with atomic ensembles

“…It has been shown that polarization selectivities of 100% and 0% for orthogonal polarizations can be obtained by using rectangular holes in place of circular holes [64]. This dependence can be simulated using FDTD methods, as shown in Figure 10B, with the use of elliptical holes rather than rectangular.…”

“…Figures 9B and 9C show the electric field profile of light trapped within the PC slabs and the refractive index profile, respectively. Guided fere with the out-of-plane external light allowing for complete constructive or destructive interference on opposite sides of the slab [63,64].…”

“…PC slabs have been shown to have relatively broad spectral regions of 100% reflectivity [64], and are much more compact than layered (Bragg grating) dielectric mirrors. Figure 10A shows a reflectivity spectrum using finite difference time domain (FDTD) simulations [52].…”

Simulation Studies on Semiconductor Photonic Crystal Using Photonic Bandgap Analysis: A Realization of Optical Mirror

“…As far as literature survey on optical mirror is concerned, a lot of similar type of research works deal with the same [9 -12]. In reference [9] authors discuss the construction of optical mirror using photonic crystal slab. Similarly, in reference [10], photonic crystal mirror is investigated using III-V/Si integrated devices.…”

Resonance control of membrane reflectors with effective index engineering

“…Based on Fano resonances, out-of-the-plane optical mode coupling in 2D PCS becomes feasible because the in-plane guided resonances above the lightline are strongly coupled to the out-of-the-plane radiation modes due to phase matching provided by the periodic lattice structure. 5 In recent years, devices based on Fano resonances such as narrowband filters 1,4 and broadband reflectors [6][7][8] have been reported. Recently, we also reported narrowband Fano filters and broadband membrane reflectors with patterned silicon nanomembranes ͑SiNM͒ transferred onto glass and flexible polyethylene terephthalate substrates, 9 employing a low temperature wet-transfer process.…”