Matches in SemOpenAlex for { <https://semopenalex.org/work/W4322009996> ?p ?o ?g. }
Showing items 1 to 58 of
58
with 100 items per page.
- W4322009996 abstract "The AOTF-based NO2 camera is a remote sensing instrument primarily aimed at imaging and quantifying the NO2 field above cities or in industrial plumes. The measurement principle consists in acquiring a number of spectral images of the scene at selected wavelengths. Each pixel is therefore recording a discrete spectrum of the radiance collected in its acceptance cone, enabling the retrieval of the NO2 column density in its optical path by application of the DOAS method on the measured spectrum.The core element of the instrument principle is the acousto-optical tunable filter (AOTF). This device works under the principle of the acousto-optical interaction, the coupling of the light electric field with the modulation of the crystal lattice by a shear acoustic wave created by a transducer. The coupling takes place at a single wavelength, and diffracts that part of the spectrum into another direction. By blocking the undiffracted light beam, and imaging the diffracted order, one can capture a monochromatic image of the scene.We propose to expand the capabilities of the NO2 camera by exploiting another aspect of the acousto-optic interaction. The coupling between light and sound actually takes place in a birefringent crystal (TeO2), and one usually works with a single linear polarization of the incoming light (e-light, or o-light). The two polarization components are diffracted in different directions. If the current design is modified such that the two components can be imaged, then an information on the degree of linear polarization of the light can be obtained.In the atmosphere, the scattering of light by air (Rayleigh), and particles (Mie) is controlling the state of polarization of the scattered solar light. Hence, aerosols not only introduce a smooth spectral signatures, but also a change of the state of polarization. The proposed modification of the NO2 camera design can provide some sensitivity on this, potentially enhancing the scientific return of the instrument with aerosol retrievals capabilities. The new instrumental design will be presented, and vector radiative transfer simulations will be produced to estimate the benefit of this change." @default.
- W4322009996 created "2023-02-26" @default.
- W4322009996 creator A5041556922 @default.
- W4322009996 creator A5061514968 @default.
- W4322009996 date "2023-05-15" @default.
- W4322009996 modified "2023-09-29" @default.
- W4322009996 title "Enhancing the AOTF-based NO2 camera with light polarization sensitivity for aerosol retrievals" @default.
- W4322009996 doi "https://doi.org/10.5194/egusphere-egu23-13464" @default.
- W4322009996 hasPublicationYear "2023" @default.
- W4322009996 type Work @default.
- W4322009996 citedByCount "0" @default.
- W4322009996 crossrefType "posted-content" @default.
- W4322009996 hasAuthorship W4322009996A5041556922 @default.
- W4322009996 hasAuthorship W4322009996A5061514968 @default.
- W4322009996 hasConcept C120665830 @default.
- W4322009996 hasConcept C121332964 @default.
- W4322009996 hasConcept C125743686 @default.
- W4322009996 hasConcept C147789679 @default.
- W4322009996 hasConcept C182610534 @default.
- W4322009996 hasConcept C185592680 @default.
- W4322009996 hasConcept C192562407 @default.
- W4322009996 hasConcept C205049153 @default.
- W4322009996 hasConcept C207114421 @default.
- W4322009996 hasConcept C23690007 @default.
- W4322009996 hasConcept C40833965 @default.
- W4322009996 hasConcept C48983235 @default.
- W4322009996 hasConcept C49040817 @default.
- W4322009996 hasConcept C6260449 @default.
- W4322009996 hasConceptScore W4322009996C120665830 @default.
- W4322009996 hasConceptScore W4322009996C121332964 @default.
- W4322009996 hasConceptScore W4322009996C125743686 @default.
- W4322009996 hasConceptScore W4322009996C147789679 @default.
- W4322009996 hasConceptScore W4322009996C182610534 @default.
- W4322009996 hasConceptScore W4322009996C185592680 @default.
- W4322009996 hasConceptScore W4322009996C192562407 @default.
- W4322009996 hasConceptScore W4322009996C205049153 @default.
- W4322009996 hasConceptScore W4322009996C207114421 @default.
- W4322009996 hasConceptScore W4322009996C23690007 @default.
- W4322009996 hasConceptScore W4322009996C40833965 @default.
- W4322009996 hasConceptScore W4322009996C48983235 @default.
- W4322009996 hasConceptScore W4322009996C49040817 @default.
- W4322009996 hasConceptScore W4322009996C6260449 @default.
- W4322009996 hasLocation W43220099961 @default.
- W4322009996 hasOpenAccess W4322009996 @default.
- W4322009996 hasPrimaryLocation W43220099961 @default.
- W4322009996 hasRelatedWork W1998178457 @default.
- W4322009996 hasRelatedWork W2002463052 @default.
- W4322009996 hasRelatedWork W2029453635 @default.
- W4322009996 hasRelatedWork W2031864651 @default.
- W4322009996 hasRelatedWork W2043913908 @default.
- W4322009996 hasRelatedWork W2054640396 @default.
- W4322009996 hasRelatedWork W2082469935 @default.
- W4322009996 hasRelatedWork W2093108433 @default.
- W4322009996 hasRelatedWork W2381330663 @default.
- W4322009996 hasRelatedWork W4320929800 @default.
- W4322009996 isParatext "false" @default.
- W4322009996 isRetracted "false" @default.
- W4322009996 workType "article" @default.