Translation Try: Photonics

Japanese: http://www.natureasia.com/ja-jp/nphoton/11/9/nphoton.2017.129/%E4%B8%80%E6%96%B9%E5%90%91%E3%83%95%E3%82%A9%E3%83%88%E3%83%8B%E3%83%83%E3%82%AF%E3%83%AF%E3%82%A4%E3%83%A4%E3%83%BC%E3%83%AC%E3%83%BC%E3%82%B6%E3%83%BC

Official English: https://www.nature.com/nphoton/journal/v11/n9/full/nphoton.2017.129.html

My Go at Translating It:

Unidirectional Photonic Wire Laser

Nature Photonics 11, 9 | Published: September 1, 2017 | doi: 10.1038/nphoton.2017.129

Photonic wire lasers are a new type of laser with a horizontal breadth far smaller than its wavelength. Unidirectional light emission is extremely desirable because most of the laser's output is aimed at the target direction. However, since the horizontal breadth is small in comparison to the wavelength, most of the mode propagates outside the solid core. As a result, the technique used up to now of installing a rear facet on the reflection device cannot be applied, regardless of whether it's a thin film reflector or a distributed Bragg reflector. Now, we present a simple and effective method to implement unidirectionality. We selected a distributed feedback (DFB) terahertz quantum cascade laser as a photonic wire laser platform. It implements unidirectionality with about an 8:1 forward:back output ratio, and the forward light emission laser output is 1.8 times the standard for a bidirectional DFB laser. Furthermore, we achieved an electrical power conversion efficiency of about 1%.

OMG USING LIGHT TO SIMULATE SOLID MATTER

Japanese: http://www.natureasia.com/ja-jp/nphoton/11/9/nphoton.2017.139/%E7%86%B1%E5%8C%96%E3%81%97%E3%81%9F%E5%85%89%E3%81%A8%E7%B5%90%E5%90%88%E3%81%97%E3%81%9F%E5%87%9D%E7%B8%AE%E4%BD%93%E3%81%AE%E3%81%9F%E3%82%81%E3%81%AE%E5%8F%AF%E5%A4%89%E3%83%9D%E3%83%86%E3%83%B3%E3%82%B7%E3%83%A3%E3%83%AB

Official English: https://www.nature.com/nphoton/journal/v11/n9/full/nphoton.2017.139.html

Convertibility Potential for a Condensate Bound with Thermalized Light

Nature Photonics 11, 9 |  Published: September 1, 2017 |  doi: 10.1038/nphoton.2017.139

 

 

Quantum vapor within a lattice potential is becoming a powerful platform for simulating solid physical phenomena, such as Mott insulator transitions. Unlike with low-temperature atoms, photon-based platforms such as photonic crystals, bound waveguides, lasers, etc. have many things that do not function in heat balance states. There are demonstrations of polariton lattice experiments and photon condensates as advancements towards photonic simulators with solid equilibrium effects. Here, we demonstrate a method of forming light convertibility micropotential using thermooptical imprinting on a pigmented polymer solution in a high-finesse microresonator. We investigated the idiosyncrasies of a single-potential well and a double-potential well, and observed a change in structure of sufficient quality in a Bose-Einstein condensate with light thermalization. Since the resultant light-light interaction was investigated, in addition to observing a tunnel junction between sites, it is a good candidate for directly populating an entangled photonic multibody state. Here, we demonstrated scalability, and thermooptic imprinting suggests ways to create new convertible microstructures in photonics.