A thousand times the light at the same resolving power – with no moving parts.
Static Fourier-transform interferometers for measurements that cannot afford to lose light: single photons against a daylight sky, weak Doppler-shifted returns, faint Raman signatures at standoff range.
Every spectrometer buys resolving power with photons. Our interferometer plays a different game.
Light or resolution
Resolution from path difference rather than from an aperture: the throughput advantage every interferometer is born with.
Static by construction
Two fixed gratings record the whole interferogram at once. Nothing scans, drifts, or wears.
Field-widened
Prisms in each arm widen the accepted solid angle by two to three orders of magnitude.
Heritage
Gratings in a Michelson since Connes (1958); field widening since 1963; spatial heterodyne spectroscopy since 1992; flown on WINDII and on MIGHTI aboard NASA's ICON. Every element has flown or been demonstrated.
Five government mission classes. One commercial market.
Satellite-QKD ground receivers
Single photons against a daylight skyQuantum test and measurement
Weak nonclassical light, statistics preservedDoppler lidar and remote sensing
Sub-picometre shifts over large solid anglesStandoff Raman, CBRNE and process
Faint signatures, large search volumesMissile tracking
Doppler emission over a wide fieldProcess-analytical Raman
Throughput as time saved per sample
Say what you need to measure.
The measurement, the environment, and the constraint that is currently losing. The reply will be the physics, with its provenance.