Move Aside Pentacene: Diazapentacene-Doped para-Terphenyl, a Zero-Field Room-Temperature Maser with Strong Coupling for Cavity Quantum Electrodynamics.
Move Aside Pentacene: Diazapentacene-Doped para-Terphenyl, a Zero-Field Room-Temperature Maser with Strong Coupling for Cavity Quantum Electrodynamics.
复制标题
并五苯：二氮杂并五苯掺杂的对三联苯，一种零场室温微波激射器，具有用于腔量子电动力学的强耦合。
DOI：
10.1002/adma.202300441
复制
发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Ng W
中科院分区：
文献类型：
--
作者：
Ng W
微波激射器可以在医学成像和深空通信中提供微波信号的超低噪声放大，最近的研究通过发现在室温下工作的增益介质而重新点燃，避免了阻碍其使用的庞大低温。这项工作表明发现了6，13-二氮杂并五苯掺杂的对三联苯（DAP：PTP）作为微波激射增益介质，可以在室温下工作，而无需外部磁场。它的脉泽输出功率为−10 dBm，与并五苯掺杂对三联苯的脉泽功率相当，同时具有令人信服的优势，例如更快的放大启动时间，可被620 nm的更长波长的光泵浦，以及氮基团更高的化学稳定性。此外，来自DAP：PTP的脉泽爆发使人们能够达到腔量子电动力学的强耦合状态，具有182的高协同性。研究了DAP：PTP的光学和微波自旋动力学，以评估其作为脉泽增益介质的能力，其中它具有快速的系间穿越和有利的更高的三重态量子产率。这些结果为未来发现类似的脉泽材料铺平了道路，并有助于将它们指定为量子传感器，光电器件和室温下腔量子电动力学效应研究的有前途的候选者。
Masers can deliver ultralow‐noise amplification of microwave signals in medical imaging and deep‐space communication, with recent research being rekindled through the discovery of gain media operating at room‐temperature, eschewing bulky cryogenics that hindered their use. This work shows the discovery of 6,13‐diazapentacene doped inpara‐terphenyl (DAP:PTP) as a maser gain medium that can operate at room‐temperature, without an external magnetic field. With a maser output power of −10 dBm, it is on par with pentacene‐dopedpara‐terphenyl in masing power, while possessing compelling advantages such as faster amplification startup times, being pumped by longer wavelength light at 620 nm and greater chemical stability from nitrogen groups. Furthermore, the maser bursts from DAP:PTP allow one to reach the strong coupling regime for cavity quantum electrodynamics, with a high cooperativity of 182. The optical and microwave spin dynamics of DAP:PTP are studied in order to evaluate its capabilities as a maser gain medium, where it features fast intersystem crossing and an advantageously higher triplet quantum yield. The results pave the way for the future discovery of similar maser materials and help designate them as promising candidates for quantum sensors, optoelectronic devices and the study of cavity quantum electrodynamic effects at room‐temperature.