TRANSMISSION TUNNELING THROUGH THE MULTILAYER DOUBLE-NEGATIVE AND DOUBLE-POSITIVE SLABS

Double - Negative 3 to Double - Positive Stages

Electromagnetic tunneling in heterostructures containing single-negative and double-positive media

In this paper, we deal with electromagnetic tunneling phenomena that can take place in certain classes of heterostructures composed of a single-negative slab suitably paired with one or two double-positive (possibly anisotropic) layers. In this framework, we also explore the sensitivity with respect to frequency and direction of the impinging wave, taking into account material dispersion and lo...

Transmission zero engineering in lateral double-barrier resonant tunneling devices

Transmission zero engineering in lateral double-barrier resonant tunneling devices is investigated. We show that, by inserting a resonant cavity in the quantum well region of a lateral double-barrier resonant tunneling structure and engineering the placement of transmission zero-pole pairs, the current peak-to-valley ratio of the device can be drastically improved at low temperature. An advanta...

a novel single step double positive double negative selection strategy for β-globin gene replacement

introduction: beta thalassemias are a heterogenous group of autosomal recessive disorders, characterized by reduced or absent production of the b-globin chain by the affected allele. transplantation of allogenic hematopoietic stem cells (hsc) is a curative approach but this therapeutic option is not available to the majority of patients. transplantation of genetically corrected autologous hsc i...

Theoretical Examination of Electromag- Netic Wave Tunneling through Cascaded 2- and Μ-negative Metamaterial Slabs

In this paper, we examine the close relationship that exists between the phenomenon of electromagnetic (EM) wave tunneling through stacks of single-negative metamaterial slabs and classical microwave filter theory. In particular, we examine the propagation of EM waves through a generalized multi-layer structure composed of N 2-negative layers separated from each other by N − 1 μnegative layers,...