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Adaptive Nulling for the Terrestrial Planet Finder InterferometerDeep, stable starlight nulls are needed for the direct detection of Earth-like planets and require careful control of the intensity and phases of the beams that are being combined. We are testing a novel compensator based on a deformable mirror to correct the intensity and phase at each wavelength and polarization across the nulling bandwidth. We have successfully demonstrated intensity and phase control using a deformable mirror across a 100nm wide band in the near-IR, and are in the process of conducting experiments in the mid-IR wavelengths. This paper covers the current results and in the mid-IR.
Document ID
20080022123
Acquisition Source
Jet Propulsion Laboratory
Document Type
Preprint (Draft being sent to journal)
External Source(s)
Authors
Jeganathan, Muthu
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hirai, Akiko
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Lay, Oliver P.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Peters, Robert D.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 24, 2013
Publication Date
May 24, 2006
Subject Category
Astronomy
Distribution Limits
Public
Copyright
Other
Keywords
amplitude and phase correction
deformable mirror
planet detection
dispersion compensator
adaptive nuller
nulling interferometry

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