Each detector unit features two orthogonal optical cavities and an atomic frequency reference, which enhances sensitivity and allows for the analysis of wave polarization and source direction.

Scientists have developed a new, compact tabletop detector technology to observe gravitational waves in the milli-Hertz frequency range, a part of the spectrum that has been difficult to access with existing instruments.

This innovative method fills a critical gap between high- and low-frequency gravitational wave detectors, enabling scientists to explore the mid-band frequency range.

The new detector employs a novel design, using advanced optical cavities and atomic references, making it compact enough for laboratory use and capable of detecting signals from sources like white dwarf binaries and black hole mergers.

Integrating these detectors with existing clock networks could extend their detection capabilities to even lower frequencies, broadening the scope of gravitational wave astronomy.

The detectors use advanced optical cavity and atomic clock technology to measure tiny phase shifts in laser light caused by passing gravitational waves, making them less susceptible to seismic noise and suitable for laboratory settings.

Unlike space-based missions like LISA, which are years away, these tabletop detectors can be deployed immediately, offering a cost-effective way to explore the mid-band gravitational wave signals.

The milli-Hertz frequency range targeted by these detectors is expected to reveal signals from sources such as white dwarf binaries, merging black holes, and relic waves from the early universe, opening new avenues for astrophysical research.

This technology offers a new way to test astrophysical models, study black hole mergers, and search for stochastic backgrounds from the early universe, complementing existing observatories like LIGO.