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HARMONI at ELT: chromatic dependence of wavefront error performance in volume phase holographic diffraction gratings

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics 13100 (2024) 131005k-131005k-9

Authors:

R Elliot Meyer, David Gooding, Matthias Tecza, Edgar Castillo Dominguez, Eduard Muslimov, Sophie Paszynska, James Kariuki, Zeynep Ozer, Niranjan Thatte, Liam Boland, Fraser Clarke, Andrew Clawson, David Creasey, Vanessa Ferraro-Wood, Ian Lewis, Kieran McCall, Cicely Rathmell, Elroy Pearson
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HARMONI at ELT: verification tests of opto-mechanical mounts for HARMONI preoptics in cryogenic environment

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics 13100 (2024) 1310052-1310052-16

Authors:

Alberto Hernández-González, Elvio Hernández Suárez, Luz Maria Montoya Martínez, Miguel A Cagigas, Alejandro Antonio Luján González, Begoña García-Lorenzo, Ángel Alonso-Sánchez, Niranjan A Thatte
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HARMONI-ELT instrument integral field unit test tools development

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics 13100 (2024) 131004l-131004l-13

Authors:

Magali Loupias, Johan Richard, Alban Remillieux, Jean-Emmanuel Migniau, Florence Laurent, Alexandre Jeanneau, Aurélien Jarno, Eric Daguisé, Adrien Girardot, Matthieu Guibert, Rémi Giroud, Didier Boudon, Nicolas Bouché, Dawn Wasley, Dave Melotte, Niranjan A Thatte, Fraser Clarke, Matthias Tecza
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Image slicing with a twist: testing and characterising a prototype image slicer for ELT-PCS

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics 13100 (2024) 1310012-1310012-7

Authors:

Matthias Tecza, R Elliot Meyer, Niranjan Thatte, Takashi Sukegawa, Tomonao Nakayasu, Masatsugu Koyama
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Magnetorheological finishing of volume phase holographic gratings for high fidelity spectrograph wavefront performance

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics 13100 (2024) 131001s-131001s-8

Authors:

Andrew Clawson, Elroy L Pearson, Niranjan Thatte, Matthias Tecza, Elliot Meyer, David Gooding, Edgar Castillo Dominguez, Eduard Muslimov, Christopher Hall, Michael DeMarco, David J Creasey, Cicely A Rathmell
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