DFG-RSF: Polytype and isotope engineering of silicon carbide for quantum microwave amplifiers

DFG-RSF：用于量子微波放大器的碳化硅的多型和同位素工程

基本信息

批准号：
310370333
负责人：
Professor Dr. Vladimir Dyakonov
金额：
--
依托单位：
Ioffe Institute
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2016
资助国家：
德国
起止时间：
2015-12-31 至 2020-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/310370333?language=en
关键词：
DFG RSF Polytype isotope engineering

项目摘要

Masers are known as one of the best microwave (MW) amplifiers. The functionality of masers is based on a purely quantum effect - stimulated microwave emission - and this is the reason why maser (or quantum) amplifiers have extremely low intrinsic noise levels. However, the application of masers is up to now limited to a few niche uses only. The reason is that modern masers require specific conditions for operation, such as cryogenic temperatures or ultra high vacuum. A new type of maser, that can operate at ambient conditions and is compatible with standard manufacturing technology, would have enormous impact on our every-day life, similar as semiconductor lasers have at present. The purpose of this project is to solve the main problem, i.e., to demonstrate quantum MW amplification at room temperature. To achieve this goal, we use vacancy-related defects in silicon carbide (SiC), where optically generated population inversion and stimulated emission have been demonstrated. We will consider theoretically the fine structure of color centers in SiC having different symmetry, and investigate experimentally the pumping mechanism of the vacancy-related color centers in various polytypes using electron spin resonance (ESR) and optically-detected magnetic resonance (ODMR) techniques. We will use various planar MW resonators/waveguides and highly sensitive techniques to reduce losses and detect MW amplification based on the maser effect in our optimized samples.

Masers被称为最好的微波炉（MW）放大器之一。 MASER的功能基于纯量子效应 - 刺激的微波发射 - 这就是MASER（或量子）放大器具有极低固有噪声水平的原因。但是，MASER的应用仅限于仅限一些利基市场。原因是现代Masers需要特定的操作条件，例如低温温度或超高真空。一种可以在环境条件下运行并与标准制造技术兼容的新型MASER将对我们每天的生活产生巨大影响，与目前的半导体激光器相似。该项目的目的是解决主要问题，即在室温下证明量子MW扩增。为了实现这一目标，我们在碳化硅（SIC）中使用了空位相关的缺陷，在该缺陷中已经证明了光学产生的种群反转和刺激的发射。从理论上讲，我们将使用电子旋转共振（ESR）和光学检测的磁共振（ODMR）技术来考虑具有不同对称性的SIC中的颜色中心的精细结构。我们将使用各种平面MW谐振器/波导和高度敏感的技术来减少基于MASER效应在我们优化的样品中的MASER效应的损失并检测MW扩增。

项目成果

期刊论文数量（7）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Spin and Optical Properties of Silicon Vacancies in Silicon Carbide − A Review

碳化硅中硅空位的自旋和光学性质 â 综述

DOI：
10.1002/pssb.201700258
发表时间：
2018
期刊：
physica status solidi (b)
影响因子：
0
作者：
S. A. Tarasenko;A. V. Poshakinskiy;D. Simin;V. A. Soltamov;E. N. Mokhov;P. G. Baranov;V. Dyakonov;G. V. Astakhov
通讯作者：
G. V. Astakhov

Influence of Irradiation on Defect Spin Coherence in Silicon Carbide