AI 中文总结
研究利用并五苯光泵浦三重态实现室温片上射频脉泽，能在106.62MHz产生受激辐射用于超灵敏微波磁场检测，通过控制微波耗散调节输出，为便携式量子设备提供新路径。
AI 中文摘要
室温固态脉泽在弱信号检测中具有出色的频率选择性和超低噪声。然而，对大型金属谐振器的依赖严重阻碍了其集成、小型化及向低频扩展。本文展示了首个室温工作的片上射频脉泽，利用并五苯的光泵浦三重态。该器件在106.62MHz产生受激辐射，灵敏度达（~10fT/√Hz），可同时作为本地振荡器和传感器。通过主动控制微波耗散实现对脉泽输出的有效调节，为无腔开放系统中的发射调谐揭示关键机制，为便携式量子设备开辟新途径。
英文摘要
Room-temperature solid-state masers offer exceptional frequency selectivity and ultra-low noise for weak-signal detection. However, their reliance on bulky metallic resonators has significantly hindered integration, miniaturization, and extension to lower frequencies. Here, we demonstrate the first on-chip radio-frequency maser operating at room temperature, exploiting optically pumped triplet states of pentacene. The device produces stimulated emission at 106.62 MHz and enables ultra-sensitive microwave magnetic-field detection with a sensitivity of ($\sim 10\,\rm{fT/\sqrt{Hz}}$), functioning simultaneously as a local oscillator and a sensor. By actively controlling microwave dissipation, we achieve efficient regulation of the maser output, revealing a key mechanism for tuning emission in open cavity-free systems. This work extends pentacene-based masers into the radio-frequency regime and establishes a highly integrated on-chip architecture for room-temperature masers, offering a new pathway toward portable quantum devices.
Comments6 pages, 4 figures
