Room-temperature quasi-continuous-wave pentacene maser pumped by an invasive Ce:YAG luminescent concentrator

Abstract

We present in this work a quasi-continuous-wave (CW) pentacene maser operating at 1.45 GHz in the Earth's magnetic field at room temperature with a duration of $\sim$4 ms and an output power of up to -25 dBm. The maser is optically pumped by a cerium-doped YAG (Ce:YAG) luminescent concentrator (LC) whose wedge-shaped output is embedded inside a 0.1% pentacene-doped para-terphenyl (Pc:Ptp) crystal. The pumped crystal is located inside a ring of strontium titanate (STO) that supports a TE${}_{01\delta }$ mode of high magnetic Purcell factor. Combined with simulations, our results indicate that CW operation of pentacene masers at room-temperature is perfectly feasible so long as excessive heating of the crystal is avoided.

arXiv comment10 pages, 8 figures

References in corpus (6)

• Traceable 2D finite-element simulation of the whispering-gallery modes of axisymmetric electromagnetic resonators
• Continuous-wave room-temperature diamond maser
• Proposal of room-temperature diamond maser
• Environmental effects on electron spin relaxation in N@C60
• Maser Oscillation in a Whispering-Gallery-Mode Microwave Resonator
• Highly efficient optical pumping of spin defects in silicon carbide for stimulated microwave emission

Cited by in corpus (7)

• Room-temperature optically detected coherent control of molecular spins
• Quantum Illumination and Quantum Radar: A Brief Overview
• Bench-top Cooling of a Microwave Mode using an Optically Pumped Spin Refrigerator
• Chemically Tuning Room Temperature Pulsed Optically Detected Magnetic Resonance
• Classical benchmarking for microwave quantum illumination
• `Maser-in-a-Shoebox': a portable plug-and-play maser device at room-temperature and zero magnetic-field
• Semiconductor Room-Temperature Maser