Insights of the Qualified ExoMars Laser and Mechanical Considerations of Its Assembly Process

Ribes-Pleguezuelo, Pol; Guilhot, Denis; Basset, Marta Gilaberte; Beckert, Erik; Eberhardt, Ramona; Tünnermann, Andreas

doi:10.3390/instruments3020025

Cited by 11 publications

(8 citation statements)

References 13 publications

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“…Solderjet Bumping could here provide a feasible solution, since it uses inorganic bonding materials and a technology already qualified for a space mission. 27 As a final remark, since the device body and lenses have been metalized with Au layers, the LSP laser spark plug had an unusual golden color; therefore, we have named the LSP device the golden laser spark plug.…”

Section: Discussionmentioning

confidence: 99%

Assembly process and optical performances for a golden laser spark-plug device

et al. 2019

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The low-stress Solderjet Bumping technique was employed to assemble the optical components of an increased-robustness laser spark-plug ignition device using the low melting alloys 96.5Sn3Ag0.5Cu and 80Au20Sn. A finite-element-method analysis, optical simulations, and a soldering parametrization test were performed to prove that different optical materials (sapphire, ECO-550, D-ZLaF52LA, TAC4, and N-SF11 glasses) could be fastened to the stainless steel body. The assembled spark-plug device featured a passively Q-switched Nd∶YAG∕Cr 4þ ∶YAG composite ceramic medium and delivered laser pulses with energy variable between 2.40 and 4.70 mJ, with 0.8 ns duration, suitable for inducing air breakdown phenomenon and engine combustion. © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Section: Discussionmentioning

confidence: 99%

Assembly process and optical performances for a golden laser spark-plug device

et al. 2019

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“…In this last case, the Raman device operates with a 248.6 nm laser emission 15 . Similarly, the European Space Agency (ESA) is planning to launch an instrument in the frame of the ExoMars mission in 2022, which will also have Raman capabilities 16,17 .…”

Section: Virtual Conference 30 March-2 April 2021mentioning

confidence: 99%

UV-BIOmarker Mapper Raman optical instrument for Venus atmosphere (UV-BIOMAP)

Ribes-Pleguezuelo

Sansano-Caramazana²,

Strese

et al. 2021

International Conference on Space Optics — ICSO 2020

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Several chemicals which could be relevant for life processes are found in the upper atmosphere of Venus (H2S, OCS, SO2, NH4Cl, NH2COOHN4 and H2O). Moreover, the atmosphere instability and the reason for the high ultraviolet (UV) heterogeneous absorption between 320 and 400 nm in the top cloud layer and mesosphere (~ 40-70 Km) are still disputed phenomena. These scientific points could be further studied by small UV Raman and fluorescence instruments mounted in a small lander platform (< 20 kg) being send to Venus.In this current article we will propose an optical payload mission, which could be useful to give more information on these scientific questions. This study proposes a feasibility analysis for launching a small probe device that includes an emitting laser, a receiving telescope and a detector. The goal of this theoretical mission (UV-BIOmarker Mapper for Venus AtmosPhere or UV-BIOMAP) will be to analyse the laser-emitted and further absorption of UV light in the Venus atmosphere, and to verify the possible presence of biomarkers. The current state of the art of the required technologies to be implemented would allow a more cost-efficient and easy to develop mission, compared with previously completed Venus probes. This article will be focused on the required science and optical payload devices needed for solving these issues. Requirements for mass and power budgets for the optical payload will be analysed to ensure that the mission can be carried out at relatively low cost while still accomplishing the scientific goals of revealing the composition of Venus's atmosphere in more detail and the reason for the heterogeneous UV absorption in the planet's top cloud layer and mesosphere.

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“…The mission also uses a robotic arm that includes the Scanning Habitable Environments with Raman & Luminescence for Organics & Chemicals (SHERLOC) Raman device, to perform proximity measurements with a 248.6 nm laser emission [27]. Similarly, ESA is planning to launch an instrument in the frame of the ExoMars mission in 2022, which will also have Raman capabilities [28].…”

Section: Figurementioning

confidence: 99%

Exploring the Habitability of Venus: Conceptual Design of a Small Atmospheric Probe

et al. 2021

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The possible presence of life in the atmosphere of Venus has been debated frequently over the last 60 years. The discussion was recently reignited by the possible detection of phosphine (PH3), but several other chemicals potentially relevant for life processes are also found in the middle atmosphere. Moreover, the reasons for the heterogeneous ultraviolet (UV) absorption between 320 and 400 nm in the altitude range ∼40–70 km are still not well understood. These aspects could be further studied in-situ by UV Raman and fluorescence instruments. Here, the conceptual design of a small balloon probe (<20 kg) is presented, including a science payload comprising a UV laser, spectrometer, and a telescope. The goal of the proposed mission is to analyse the absorption of UV light in Venus’ atmosphere, to study the atmospheric composition, and to verify the possible presence of biomarkers. Current state-of-the-art technologies would allow a more cost-efficient and easy to develop mission, as compared to previous Venus probes. This article is focused on the scientific instrumentation, as well as on the mass and power budgets required to realise the proposed mission.

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Insights of the Qualified ExoMars Laser and Mechanical Considerations of Its Assembly Process

Cited by 11 publications

References 13 publications

Assembly process and optical performances for a golden laser spark-plug device

Assembly process and optical performances for a golden laser spark-plug device

UV-BIOmarker Mapper Raman optical instrument for Venus atmosphere (UV-BIOMAP)

Exploring the Habitability of Venus: Conceptual Design of a Small Atmospheric Probe

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