Deposition of gold without external current source

Microresonator-based comb generation without an external laser source.

We demonstrate a fiber-microresonator dual-cavity architecture with which we generate 880 nm of comb bandwidth without the need for a continuous-wave pump laser. Comb generation with this pumping scheme is greatly simplified as compared to pumping with a single frequency laser, and the generated combs are inherently robust due to the intrinsic feedback mechanism. Temporal and radio frequency (R...

Chemical Risk without Concurrent External Exposure!

Dynamic Control of Particle Deposition in Evaporating Droplets by an External Point Source of Vapor

The deposition of particles on a surface by an evaporating sessile droplet is important for phenomena as diverse as printing, thin-film deposition, and self-assembly. The shape of the final deposit depends on the flows within the droplet during evaporation. These flows are typically determined at the onset of the process by the intrinsic physical, chemical, and geometrical properties of the dro...

Radial uniformity of an external-coil ionized physical vapor deposition source

A production-scale ionized physical vapor deposition ~I-PVD! source has been developed to investigate the directional metalization of 200 mm diameter wafers by sputtering. The ionization of sputtered metal is accomplished by a 45 cm diameter inductively coupled plasma ~ICP!. Unlike previously reported I-PVD sources, however, the coil of the ICP is external to the plasma chamber. A plasma-immers...

A Generalized Modular Multilevel Current Source Inverter

This paper proposes a novel topology of multilevel current source inverter which is suitable to apply in low/medium voltage. The proposed topology is capable of producing desirable bidirectional output current levels. Furthermore, it can employ symmetrical DC current sources as well as asymmetrical ones which is a significant advantage. Asymmetrical mode makes it possible to generate a great nu...