Physics

Microwave cavity

Pure mathematics

Mathematics

CMOS

Operating system

Parametric statistics

Optics

Statistics

Amplifier

Parametric oscillator

Thermal

Microwave

Computer science

Mode (computer interface)

Quantum mechanics

Field (mathematics)

Optoelectronics

Thermodynamics

New Journal of Physics

In this paper, we present the experimental study of a single-mode thermal field carried out using a microwave parametric amplifier tuned at 1.5 GHz and working at room temperature. The parametric amplifier is based on a variable capacitance diode placed inside a microwave resonant cavity. The measured distribution of the thermal photons inside the resonator follows the expected Bose–Einstein distribution probability.

The measurement of a single-mode thermal field with a microwave cavity parametric amplifier