Matches in SemOpenAlex for { <https://semopenalex.org/work/W4387362243> ?p ?o ?g. }
Showing items 1 to 84 of
84
with 100 items per page.
- W4387362243 abstract "Directly imaging Earth-sized exoplanets with a visible-light coronagraph instrument on a space telescope will require a system that can achieve approximately 10<sup>−10</sup> raw contrast and maintain it for the duration of observations (on the order of hours or more). We are designing, manufacturing, and testing Dual Purpose Lyot coronagraph (DPLC) masks that allow for simultaneous wavefront sensing and control using out-of-band light to maintain high contrast in the science focal plane. Our initial design uses a tiered metallic focal plane occultor to suppress starlight in the transmitted coronagraph channel and a dichroic-coated substrate to reflect out-of-band light to a wavefront sensing camera. The occultor design introduces a phase shift such that the reflected channel is a Zernike wavefront sensor. The dichroic coating allows higher-order wavefront errors to be detected which is especially critical for compensating for residual drifts from an actively-controlled segmented primary mirror. A second-generation design concept includes a metasurface to create polarization-dependent phase shifts in the reflected beam, which has several advantages including an extended dynamic range. We will present the focal plane mask designs, characterization, and initial testing at NASA’s High Contrast Imaging Testbed (HCIT) facility" @default.
- W4387362243 created "2023-10-06" @default.
- W4387362243 creator A5037273672 @default.
- W4387362243 creator A5038383519 @default.
- W4387362243 creator A5044489249 @default.
- W4387362243 creator A5046212751 @default.
- W4387362243 creator A5050281647 @default.
- W4387362243 creator A5050838747 @default.
- W4387362243 creator A5051069968 @default.
- W4387362243 creator A5061511818 @default.
- W4387362243 creator A5067076151 @default.
- W4387362243 creator A5072624226 @default.
- W4387362243 creator A5087468302 @default.
- W4387362243 date "2023-10-05" @default.
- W4387362243 modified "2023-10-06" @default.
- W4387362243 title "Dual purpose lyot coronagraph masks for simultaneous high-contrast imaging and high-resolution wavefront sensing" @default.
- W4387362243 doi "https://doi.org/10.1117/12.2676853" @default.
- W4387362243 hasPublicationYear "2023" @default.
- W4387362243 type Work @default.
- W4387362243 citedByCount "0" @default.
- W4387362243 crossrefType "proceedings-article" @default.
- W4387362243 hasAuthorship W4387362243A5037273672 @default.
- W4387362243 hasAuthorship W4387362243A5038383519 @default.
- W4387362243 hasAuthorship W4387362243A5044489249 @default.
- W4387362243 hasAuthorship W4387362243A5046212751 @default.
- W4387362243 hasAuthorship W4387362243A5050281647 @default.
- W4387362243 hasAuthorship W4387362243A5050838747 @default.
- W4387362243 hasAuthorship W4387362243A5051069968 @default.
- W4387362243 hasAuthorship W4387362243A5061511818 @default.
- W4387362243 hasAuthorship W4387362243A5067076151 @default.
- W4387362243 hasAuthorship W4387362243A5072624226 @default.
- W4387362243 hasAuthorship W4387362243A5087468302 @default.
- W4387362243 hasConcept C120665830 @default.
- W4387362243 hasConcept C121332964 @default.
- W4387362243 hasConcept C121535716 @default.
- W4387362243 hasConcept C1276947 @default.
- W4387362243 hasConcept C132771110 @default.
- W4387362243 hasConcept C133286888 @default.
- W4387362243 hasConcept C136872047 @default.
- W4387362243 hasConcept C138395690 @default.
- W4387362243 hasConcept C150846664 @default.
- W4387362243 hasConcept C163479331 @default.
- W4387362243 hasConcept C165699331 @default.
- W4387362243 hasConcept C2776112769 @default.
- W4387362243 hasConcept C2780848835 @default.
- W4387362243 hasConcept C51244244 @default.
- W4387362243 hasConcept C51427946 @default.
- W4387362243 hasConcept C92423082 @default.
- W4387362243 hasConcept C92869835 @default.
- W4387362243 hasConcept C99407587 @default.
- W4387362243 hasConceptScore W4387362243C120665830 @default.
- W4387362243 hasConceptScore W4387362243C121332964 @default.
- W4387362243 hasConceptScore W4387362243C121535716 @default.
- W4387362243 hasConceptScore W4387362243C1276947 @default.
- W4387362243 hasConceptScore W4387362243C132771110 @default.
- W4387362243 hasConceptScore W4387362243C133286888 @default.
- W4387362243 hasConceptScore W4387362243C136872047 @default.
- W4387362243 hasConceptScore W4387362243C138395690 @default.
- W4387362243 hasConceptScore W4387362243C150846664 @default.
- W4387362243 hasConceptScore W4387362243C163479331 @default.
- W4387362243 hasConceptScore W4387362243C165699331 @default.
- W4387362243 hasConceptScore W4387362243C2776112769 @default.
- W4387362243 hasConceptScore W4387362243C2780848835 @default.
- W4387362243 hasConceptScore W4387362243C51244244 @default.
- W4387362243 hasConceptScore W4387362243C51427946 @default.
- W4387362243 hasConceptScore W4387362243C92423082 @default.
- W4387362243 hasConceptScore W4387362243C92869835 @default.
- W4387362243 hasConceptScore W4387362243C99407587 @default.
- W4387362243 hasLocation W43873622431 @default.
- W4387362243 hasOpenAccess W4387362243 @default.
- W4387362243 hasPrimaryLocation W43873622431 @default.
- W4387362243 hasRelatedWork W1657454286 @default.
- W4387362243 hasRelatedWork W2063110208 @default.
- W4387362243 hasRelatedWork W2085116985 @default.
- W4387362243 hasRelatedWork W2490905992 @default.
- W4387362243 hasRelatedWork W2773419738 @default.
- W4387362243 hasRelatedWork W2950000762 @default.
- W4387362243 hasRelatedWork W3099536611 @default.
- W4387362243 hasRelatedWork W3102722517 @default.
- W4387362243 hasRelatedWork W3103741254 @default.
- W4387362243 hasRelatedWork W4375947271 @default.
- W4387362243 isParatext "false" @default.
- W4387362243 isRetracted "false" @default.
- W4387362243 workType "article" @default.