3 citations · 4 across the 12 of their papers we have counts for
12 papers
New techniques for high-resolution imaging and high-precision wavefront sensing via masked-aperture interferometry
Nithyanandan Thyagarajan, Bojan Nikolic, Chris Carilli +2
Achieving high-angular-resolution imaging on subarcsecond scales is fundamentally limited by wavefront aberrations imparted by the propagation medium and by optical elements along…
Exploiting Non Redundant Aperture Interferometry as a Diagnostics Tool for Synchrotron Light Characterization
C. Carilli, U. Iriso, B. Nikolic +2
We recently introduced a novel interferometric method inspired by radio astronomy, utilizing a Non-Redundant Aperture (NRA) mask with self-calibration to fully characterize the two…
Capabilities and Limitations of Non-Redundant Aperture Interferometry for Beam Size Measurements
C. Carilli, U. Iriso, B. Nikolic +3
Non-Redundant Aperture Interferometry (NRAI) is a beam characterization technique developed at ALBA in collaboration with radio-astronomy institutes. It enables the single-acquisit…
Exploring One-point Statistics in HERA Phase I Data: Effects of Foregrounds and Systematics on Measuring One-Point Statistics
Honggeun Kim, Jacqueline N. Hewitt, Nicholas S. Kern +61
Measuring one-point statistics in redshifted 21 cm intensity maps offers an opportunity to explore non-Gaussian features of the early universe. We assess the impact of instrumental…
A New Method for Aperture Masking Interferometric Imaging: Demonstration with the JWST
Christopher Carilli, Bojan Nikolic, Laura Torino +2
We present a new method for aperture masking interferometric (AMI) imaging at near-IR wavelengths using radio astronomical techniques. The method starts with derivation of interfer…
Two-dimensional Light Beam Shape Characterization using Interferometric Closure Amplitudes
Nithyanandan Thyagarajan, Bojan Nikolic, Chris Carilli +2
We introduce a novel technique using closure amplitudes, inspired by radio interferometry, to determine with high angular resolution the two-dimensional profile of a light beam usi…
A New Method for Wavefront Sensing using Optical Masking Interferometry
C. L. Carilli, L. Torino, B. Nikolic +2
Wave front sensing of the surface of equal phase for a propagating electromagnetic wave is a vital technology in fields ranging from real time adaptive optics, to high accuracy met…
New interferometric aperture masking technique for full transverse beam characterization using synchrotron radiation
Ubaldo Iriso, Laura Torino, Chris Carilli +2
Emittance measurements using synchrotron radiation are usually performed using x-rays to avoid diffraction limits. Interferometric techniques using visible light are also used to m…
Deriving the size and shape of the ALBA electron beam with optical synchrotron radiation interferometry using aperture masks: technical choices
C. L. Carilli, L. Torino, U. Iriso +2
We explore non-redundant aperture masking to derive the size and shape of the ALBA synchrotron light source at optical wavelengths using synchrotron radiation interferometry. We sh…
Laboratory Demonstration of Image-Plane Self-Calibration in Interferometry
Christopher L. Carilli, Bojan Nikolic, Laura Torino +2
We demonstrate the Shape-Orientation-Size conservation principle for a 3-element interferometer using aperture plane masking at the ALBA visible synchrotron radiation light source.…
Two-dimensional Synchrotron Beam Characterisation from a Single Interferogram
Bojan Nikolic, Christopher L. Carilli, Nithyanandan Thyagarajan +2
Double-aperture Young interferometry is widely used in accelerators to provide a one-dimensional beam measurement. We improve this technique by combining and further developing tec…
Image-Plane Self-Calibration in Interferometry
C. L. Carilli, B. Nikolic, N. Thyagarajan
We develop a new process of image plane self-calibration for interferometric imaging data. The process is based on Shape-Orientation-Size (SOS) conservation for the principal trian…