Dr. James Kariuki Profile

Dr. James Kariuki

at Univ of Oxford

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Author

Publications (11)

Proceedings Article | 28 August 2024 Poster

HARMONI at ELT: High Precision Cryogenic Mechanisms for HARMONI Spectrographs

Edgar Castillo-Domínguez, Ian Lewis, James Kariuki, Matthias Tecza, Fraser Clarke, Elliot Meyer, Zeynep Ozer, Eduard Muslimov, Sophie Paszynska, Kieran McCall, Vanessa Ferraro-Wood, Liam Boland, David Gooding, Jorge Chao-Ortiz, Niranjan Thatte

Proceedings Volume 13100, 1310074 (2024) https://doi.org/10.1117/12.3019188

Proceedings Article | 26 August 2024 Presentation + Paper

HARMONI at ELT: characterizing spatial variations in transmission efficiency of volume phase holographic diffraction gratings

David Gooding, Niranjan Thatte, Edgar Castillo Dominguez, Eduard Muslimov, Matthias Tecza, R. Elliot Meyer, Fraser Clarke, Zeynep Ozer, Vanessa Ferraro-Wood, James Kariuki, Kieran McCall, Liam Boland, Elroy Pearson, David Creasey, Andrew Clawson

Proceedings Volume 13100, 131001T (2024) https://doi.org/10.1117/12.3020189

KEYWORDS: Optical gratings, Diffraction gratings, Prototyping, Spectrographs, Equipment, Optical transmission, Manufacturing, Automation, Spectrophotometry, Near infrared

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Proceedings Article | 26 August 2024 Paper

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

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

Proceedings Volume 13100, 131005K (2024) https://doi.org/10.1117/12.3019252

KEYWORDS: Optical gratings, Diffraction gratings, Magnetorheological finishing, Prototyping, Wavefronts, Monochromatic aberrations, Colorimetry, Wavefront errors, Photonics, Spectrographs

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Proceedings Article | 5 August 2024 Presentation + Paper

HARMONI at ELT: project status and instrument overview

Niranjan Thatte, Dave Melotte, Benoit Neichel, David Le Mignant, Phil Rees, Fraser Clarke, Vanessa Ferraro-Wood, Oscar Gonzalez, Maia Jones, Alonso Álvarez Urueña, Heribert Argelaguet Vilaseca, Santiago Arribas Mocoroa, José Antonio Caballero, Gonzalo José Carracedo Carballal, Alberto Estrada Piqueras, Irene Ferro, Miriam García García, Isabella Lamperti, Miguel Pereira Santaella, Michele Perna, Javier Piqueras Lopez, Nicolas Bouché, Didier Boudon, Eric Daguise, Nicola Domenis, Jérémy Fensch, Olivier Olivier Flasseur, Rémi Giroud, Matthieu Guibert, Aurelien Jarno, Alexandre Jeanneau, Jens-Kristian Krogager, Maud Langlois, Florence Laurent, Magali Loupias, Jean-Emmanuel Migniau, Dieu Nguyen, Laure Piqueras, Alban Remillieux, Johan Richard, Arlette Pecontal, Lisa Bardou, David Barr, Sylvain Cetre, Sofia Dimoudi, Marc Dubbeldam, Andrew Dunn, Dimitri Gadotti, Joss Guy, David King, Anna McLeod, Simon Morris, Tim Morris, Kieran O'Brien, Emily Ronson, Russell Smith, Lazar Staykov, Mark Swinbank, Matteo Accardo, Domingo Alvarez Mendez, Pablo Alberto Fuerte Rodriguez, Elizabeth George, Derek Ives, Leander Mehrgan, Eric Mueller, Javier Reyes, Ralf Conzelmann, Pablo Gutierrez Cheetham, Angel Alonso Sanchez, Giuseppina Battaglia, Miguel Cagigas, Julio Castro-Almazán, Haresh Chulani, Graciela Delgado-García, Patricia Fernandez Izquierdo, Donaji Esparza-Arredondo, Begoña García-Lorenzo, Alberto Hernández González, Elvio Hernández Suárez, Javier Licandro, Enrique Joven, Roberto López López, Alejandro Antonio Lujan Gonzalez, Yolanda Martín Hernando, Ignacio Martín-Navarro, Evencio Mediavilla, Saúl Menéndez Mendoza, Luz Maria Montoya Martínez, José Peñate Castro, Felipe Murgas, Enric Pallé, Álvaro Pérez, Jose Luis Rasilla, Rafael Rebolo, Horacio Rodríguez, Luis Fernando Rodríguez Ramos, Victor Sánchez Béjar, Tariq Shahbaz, Afrodisio Vega Moreno, Teodora Viera, Mickaël Bonnefoy, Tony Bret, Alexis Carlotti, Jean-Jacques Correia, Stéphane Curaba, Alain Delboulbé, Sylvain Guieu, Adrien Hours, Zoltan Hubert, Laurent Jocou, Yves Magnard, Laurence Michaud, Thibaut Moulin, Fabrice Pancher, Patrick Rabou, Sylvain Rochat, Eric Stadler, Thierry Contini, Marie Larrieu, Sébastien Mamessier, Olivier Boebion, Yan Fantei-Caujolle, Daniel Lecron, Philippe Amram, Patrick Blanchard, William Bon, Anne Bonnefoi, Alexandre Bozier, William Ceria, Zalpha Challita, Yannick Charles, Elodie Choquet, Anne Costille, Audrey Delsanti, Kjetil Dohlen, Franck Ducret, Kacem El Hadi, Benjamin Foulon, Jean-Luc Gimenez, Olivier Groussin, Marc Jaquet, Edgard Renault, Paul Rouquette, Patrice Sanchez, Arthur Vigan, Annie Zavagno, Romain Fétick, Thierry Fusco, Cedric Héritier, Jean-Francois Sauvage, Nicolas Vedrenne, Demet Aksoy, Martin Caldwell, Ann Fitzpatrick, Carl Geddert, Peter Hiscock, Emma Johnson, Murali Nalagatla, Louise Saraff, Joe Shreeves, Matthew Tildesley, Mark Wells, Anastasios Aretos, Lee Barrett, Martin Black, Charlotte Bond, Saskia Brierley, Ian Bryson, Amelia Calderhead, Kenny Campbell, James Carruthers, Lee Chapman, William Cochrane, Rory Gillespie, Joel Harman, Douglas Harvey, Eamonn Harvey, Bethany Johnson, Tom Louth, Mike MacIntosh, Anna MacIver, Chris Miller, David Montgomery, Meenu Murali, John Murray, Norman O'Malley, Ruben Sanchez-Janssen, Noah Schwartz, Patrick Smith, Jonathan Strachan, Stephen Todd, Dawn Wasley, Sandi Wilson, Junyi Zhou, Eric Bell, Oleg Gnedin, Kayhan Gultekin, Mario Mateo, Michael Meyer, Jayne Birkby, Liam Boland, Michele Cappellari, Edgar Castillo Dominguez, David Gooding, Kearn Grisdale, Andrea Hidalgo, James Kariuki, Ian Lewis, Kieran McCall, R. Elliot Meyer, Eduard Muslimov, Adam Lowe, Zeynep Ozer, Sophie Paszynska, Dimitra Rigopoulou, Matthias Tecza, Alec York

Proceedings Volume 13096, 1309614 (2024) https://doi.org/10.1117/12.3018520

KEYWORDS: Equipment, Adaptive optics, Design, Telescopes, Spectrographs, Stars, Signal to noise ratio, Image quality, Cameras

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Proceedings Article | 18 July 2024 Poster + Paper

HARMONI at ELT: tolerance analysis and expected as-build imaging performance of the infrared spectrograph

Eduard Muslimov, Edgar Castillo-Domínguez, James Kariuki, Jorge Chao-Ortiz, Matthias Tecza, Elliot Meyer, Zeynep Ozer, Fraser Clarke, Niranjan Thatte

Proceedings Volume 13096, 130964W (2024) https://doi.org/10.1117/12.3020119

KEYWORDS: Tolerancing, Error analysis, Wavefront errors, Spectrographs, Optical alignment, Manufacturing, Design, Optical surfaces, Mirrors, Statistical analysis, Astronomical instrumentation

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Showing 5 of 11 publications

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