DIRECT EXPERIMENTAL VISUALIZATION OF WAVES AND BAND STRUCTURE IN 2D PHOTONIC CRYSTAL SLABS

We demonstrate for the first time the ability to perform time resolved imaging of terahertz (THz) waves propagating within a photonic crystal (PhC) slab.For photonic lattices with different read more orientations and symmetries, we used the electro-optic effect to record the full spatiotemporal evolution of THz fields across a broad spectral range

<p><strong>Background and aims.</strong> Oral lichen planus (OLP) is a common chronic mucocutaneous disease.Patients with atrophic and erosive lichen planus often have symptoms of soreness and need proper treatment.The main therapy of OLP has been the administration of topical or systemic corticosteroids.Potent topical corticoster