Incoherent Infrared Spatial Interferometry

Incoherent Holographic Interferometry

Nanoscale optical interferometry with incoherent light.

Optical interferometry has empowered an impressive variety of biosensing and medical imaging techniques. A widely held assumption is that devices based on optical interferometry require coherent light to generate a precise optical signature in response to an analyte. Here we disprove that assumption. By directly embedding light emitters into subwavelength cavities of plasmonic interferometers, ...

Optical and infrared interferometry

Interferometric techniques are at the forefront of modern astronomical instrumentation. A new generation of instruments are either operating or nearing completion, including arrays of small telescopes as well as the “big guns” (VLTI and Keck). A number of space interferometers for the detection of extra-solar planets are also being planned. I will review the current state of play and describe t...

Infrared interferometry of circumstellar envelopes

This paper will review the technical progress of interferometric infrared observing techniques from the first 2-element interferometer 25 years ago to the 3+ element arrays now coming into service. To date, only the Infrared Spatial Interferometer (ISI) has published separateelement interferometric data on circumstellar dust shells in the infrared and many of these scientific results will be di...

Near-infrared interferometry of AGN

Interferometry in the infrared is able to resolve the sub-parsec-scale dust environment surrounding the accretion disk of AGN. A diffraction-limited K′-band image of NGC 1068 with 74 mas resolution and the first H-band image with 57 mas resolution were reconstructed from speckle interferograms obtained with the SAO 6 m telescope. The resolved structure consists of a compact core and an extended...