Closed-loop wavefront correction for high-contrast imaging: the "peek-a-boo" algorithm

2006 ◽  
Author(s):  
Amir Give'on ◽  
N. Jeremy Kasdin ◽  
Robert J. Vanderbei
Keyword(s):  
Closed Loop ◽  
High Contrast ◽  
Contrast Imaging ◽  
Wavefront Correction ◽  
High Contrast Imaging

scholarly journals Closed loop, DM diversity-based, wavefront correction algorithm for high contrast imaging systems

2007 ◽  
Vol 15 (19) ◽  
pp. 12338 ◽  
Author(s):  
Amir Give'on ◽  
Ruslan Belikov ◽  
Stuart Shaklan ◽  
Jeremy Kasdin
Keyword(s):  
Closed Loop ◽  
Imaging Systems ◽  
High Contrast ◽  
Correction Algorithm ◽  
Contrast Imaging ◽  
Wavefront Correction ◽  
High Contrast Imaging

Broadband wavefront correction algorithm for high-contrast imaging systems

2007 ◽  
Author(s):  
Amir Give'on ◽  
Brian Kern ◽  
Stuart Shaklan ◽  
Dwight C. Moody ◽  
Laurent Pueyo
Keyword(s):  
Imaging Systems ◽  
High Contrast ◽  
Correction Algorithm ◽  
Contrast Imaging ◽  
Wavefront Correction ◽  
High Contrast Imaging

scholarly journals Information-theoretical Limits of Recursive Estimation and Closed-loop Control in High-contrast Imaging

2021 ◽  
Vol 256 (2) ◽  
pp. 39
Author(s):  
Leonid Pogorelyuk ◽  
Laurent Pueyo ◽  
Jared R. Males ◽  
Kerri Cahoy ◽  
N. Jeremy Kasdin
Keyword(s):  
Closed Loop ◽  
Recursive Estimation ◽  
Closed Loop Control ◽  
High Contrast ◽  
Contrast Imaging ◽  
Loop Control ◽  
High Contrast Imaging

The CM120 Biotwin: a high-contrast objective lens, optimum cryo-vacuum and improved EDX performance

1995 ◽  
Vol 53 ◽  
pp. 584-585
Author(s):  
Uwe Lücken ◽  
Michael Felsmann ◽  
Wim M. Busing ◽  
Frank de Jong
Keyword(s):  
Life Science ◽  
Focal Length ◽  
Objective Lens ◽  
High Contrast ◽  
Contrast Imaging ◽  
X Ray ◽  
Forming Mechanism ◽  
Similar Image ◽  
High Contrast Imaging ◽  
Low Concentrations

A new microscope for the study of life science specimen has been developed. Special attention has been given to the problems of unstained samples, cryo-specimens and x-ray analysis at low concentrations.A new objective lens with a Cs of 6.2 mm and a focal length of 5.9 mm for high-contrast imaging has been developed. The contrast of a TWIN lens (f = 2.8 mm, Cs = 2 mm) and the BioTWTN are compared at the level of mean and SD of slow scan CCD images. Figure 1a shows 500 +/- 150 and Fig. 1b only 500 +/- 40 counts/pixel. The contrast-forming mechanism for amplitude contrast is dependent on the wavelength, the objective aperture and the focal length. For similar image conditions (same voltage, same objective aperture) the BioTWIN shows more than double the contrast of the TWIN lens. For phasecontrast specimens (like thin frozen-hydrated films) the contrast at Scherzer focus is approximately proportional to the √ Cs.

scholarly journals Anti-quenching NIR-II molecular fluorophores for in vivo high-contrast imaging and pH sensing

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Shangfeng Wang ◽  
Yong Fan ◽  
Dandan Li ◽  
Caixia Sun ◽  
Zuhai Lei ◽  
...  
Keyword(s):  
Ph Sensing ◽  
High Contrast ◽  
Contrast Imaging ◽  
High Contrast Imaging

Simulations of exoplanets detection obtained with a high-contrast imaging instrument: CHEOPS

2004 ◽  
Author(s):  
Alessandro Berton ◽  
Raffaele G. Gratton ◽  
Markus Feldt ◽  
Silvano Desidera ◽  
Elena Masciadri ◽  
...  
Keyword(s):  
High Contrast ◽  
Contrast Imaging ◽  
High Contrast Imaging ◽  
Imaging Instrument
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