RISTRETTO: the PIAA Nuller in the prototyping phase

N. Restori; N. Blind; J. Kühn; B. Chazelas; C. Lovis; C. Mordasini; M. Shinde; P. Martinez; O. Guyon

doi:10.1117/12.3020051

RISTRETTO: the PIAA Nuller in the prototyping phase

N. Restori, N. Blind, J. Kühn, B. Chazelas, C. Lovis, C. Mordasini, M. Shinde, P. Martinez, O. Guyon

Optical Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

The objective of the coronagraphic IFU of RISTRETTO is to enable High Dispersion Coronagraphy of planets at a distance of 2λ/D from their star, without compromising on transmission. The new idea of a PIAA Nuller (PIAAN) allows contrast down to 10^-5 over large bandwidth ≥ 25%, with high transmission ≥ 70% at the distance of 2λ/D. While RISTRETTO will be installed on a VLT, this development is of tremendous importance for fully exploiting future ELTs XAO. We will discuss our PIAAN prototyping activities. This covers 1) the characterisation of our 2nd set of IFU bundles, with 3D-printed MLAs; 2) the characterisation of our first PIAA optics; 3) the integration of a high contrast bench, planned for prototyping of Front-End control strategies; 4) the characterisation of the PIAAN system on the bench.

Original language	English (US)
Title of host publication	Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI
Editors	Ramon Navarro, Ralf Jedamzik
Publisher	SPIE
ISBN (Electronic)	9781510675230
DOIs	https://doi.org/10.1117/12.3020051
State	Published - 2024
Event	Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI 2024 - Yokohama, Japan Duration: Jun 16 2024 → Jun 22 2024

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	13100
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI 2024
Country/Territory	Japan
City	Yokohama
Period	6/16/24 → 6/22/24

Keywords

HDC
nulling
PIAA
XAO

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.3020051

Cite this

Restori, N., Blind, N., Kühn, J., Chazelas, B., Lovis, C., Mordasini, C., Shinde, M., Martinez, P., & Guyon, O. (2024). RISTRETTO: the PIAA Nuller in the prototyping phase. In R. Navarro, & R. Jedamzik (Eds.), Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI Article 131002T (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 13100). SPIE. https://doi.org/10.1117/12.3020051

RISTRETTO: the PIAA Nuller in the prototyping phase. / Restori, N.; Blind, N.; Kühn, J. et al.
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI. ed. / Ramon Navarro; Ralf Jedamzik. SPIE, 2024. 131002T (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 13100).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Restori, N, Blind, N, Kühn, J, Chazelas, B, Lovis, C, Mordasini, C, Shinde, M, Martinez, P & Guyon, O 2024, RISTRETTO: the PIAA Nuller in the prototyping phase. in R Navarro & R Jedamzik (eds), Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI., 131002T, Proceedings of SPIE - The International Society for Optical Engineering, vol. 13100, SPIE, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI 2024, Yokohama, Japan, 6/16/24. https://doi.org/10.1117/12.3020051

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AB - The objective of the coronagraphic IFU of RISTRETTO is to enable High Dispersion Coronagraphy of planets at a distance of 2λ/D from their star, without compromising on transmission. The new idea of a PIAA Nuller (PIAAN) allows contrast down to 10-5 over large bandwidth ≥ 25%, with high transmission ≥ 70% at the distance of 2λ/D. While RISTRETTO will be installed on a VLT, this development is of tremendous importance for fully exploiting future ELTs XAO. We will discuss our PIAAN prototyping activities. This covers 1) the characterisation of our 2nd set of IFU bundles, with 3D-printed MLAs; 2) the characterisation of our first PIAA optics; 3) the integration of a high contrast bench, planned for prototyping of Front-End control strategies; 4) the characterisation of the PIAAN system on the bench.

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RISTRETTO: the PIAA Nuller in the prototyping phase

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