Zobrazeno 1 - 10
of 170
pro vyhledávání: '"P Gatkine"'
Autor:
Vievard, Sébastien, Lallement, Manon, Leon-Saval, Sergio, Guyon, Olivier, Jovanovic, Nemanja, Huby, Elsa, Lacour, Sylvestre, Lozi, Julien, Deo, Vincent, Ahn, Kyohoon, Lucas, Miles, Sallum, Steph, Norris, Barnaby, Betters, Chris, Amezcua-Correa, Rodrygo, Yerolatsitis, Stephanos, Fitzgerald, Michael, Lin, Jon, Kim, Yoo Jung, Gatkine, Pradip, Kotani, Takayuki, Tamura, Motohide, Currie, Thayne, Kenchington, Harry-Dean, Martin, Guillermo, Perrin, Guy
Photonic lanterns are waveguide devices enabling high throughput single mode spectroscopy and high angular resolution. We aim to present the first on-sky demonstration of a photonic lantern (PL) operating in visible light, to measure its throughput a
Externí odkaz:
http://arxiv.org/abs/2409.06958
Autor:
Vievard, Sébastien, Lallement, Manon, Leon-Saval, Sergio, Guyon, Olivier, Jovanovic, Nemanja, Huby, Elsa, Lacour, Sylvestre, Lozi, Julien, Deo, Vincent, Ahn, Kyohoon, Lucas, Miles, Currie, Thayne, Sallum, Steph, Fitzgerald, Michael P., Betters, Chris, Norris, Barnaby, Amezcua-Correa, Rodrigo, Yerolatsitis, Stephanos, Lin, Jon, Kim, Yoo-Jung, Gatkine, Pradip, Kotani, Takayuki, Tamura, Motohide, Martin, Guillermo, Goldsmith, Harry-Dean Kenchington, Perrin, Guy
A Photonic Lantern (PL) is a novel device that efficiently converts a multi-mode fiber into several single-mode fibers. When coupled with an extreme adaptive optics (ExAO) system and a spectrograph, PLs enable high throughput spectroscopy at high ang
Externí odkaz:
http://arxiv.org/abs/2407.15412
Autor:
Gatkine, Pradip, Sercel, Greg, Jovanovic, Nemanja, Broeke, Ronald, Lawniczuk, Katarzyna, Passoni, Marco, Balakrishnan, Ashok, Bidnyk, Serge, Yin, Jielong, Jewell, Jeffrey, Wallace, J. Kent, Mawet, Dimitri
Broadband low-resolution near-infrared spectrographs in a compact form are crucial for ground- and space-based astronomy and other fields of sensing. Astronomical spectroscopy poses stringent requirements including high efficiency, broad band operati
Externí odkaz:
http://arxiv.org/abs/2404.02376
Autor:
Xin, Yinzi, Echeverri, Daniel, Jovanovic, Nemanja, Mawet, Dimitri, Leon-Saval, Sergio, Amezcua-Correa, Rodrigo, Yerolatsitis, Stephanos, Fitzgerald, Michael P., Gatkine, Pradip, Kim, Yoo Jung, Lin, Jonathan, Norris, Barnaby, Ruane, Garreth, Sallum, Steph
Photonic lantern nulling (PLN) is a method for enabling the detection and characterization of close-in exoplanets by exploiting the symmetries of the ports of a mode-selective photonic lantern (MSPL) to cancel out starlight. A six-port MSPL provides
Externí odkaz:
http://arxiv.org/abs/2404.01426
Autor:
Sercel, Gregory P., Gatkine, Pradip R., Jovanovic, Nemanja, Jewell, Jeffrey B., da Costa, Luis Pereira, Wallace, J. Kent, Mawet, Dimitri P.
High-resolution astronomical spectroscopy carried out with a photonic Fourier transform spectrograph (FTS) requires long asymmetrical optical delay lines that can be dynamically tuned. For example, to achieve a spectral resolution of R = 30,000, a de
Externí odkaz:
http://arxiv.org/abs/2403.10019
Autor:
Kim, Yoo Jung, Fitzgerald, Michael P., Lin, Jonathan, Sallum, Steph, Xin, Yinzi, Jovanovic, Nemanja, Leon-Saval, Sergio, Betters, Christopher, Gatkine, Pradip, Guyon, Olivier, Lozi, Julien, Mawet, Dimitri, Norris, Barnaby, Vievard, Sébastien
Photonic lanterns (PLs) are tapered waveguides that gradually transition from a multi-mode fiber geometry to a bundle of single-mode fibers. In astronomical applications, PLs can efficiently couple multi-mode telescope light into a multi-mode fiber e
Externí odkaz:
http://arxiv.org/abs/2312.00221
Autor:
Jovanovic, Nemanja, Gatkine, Pradip, Anugu, Narsireddy, Amezcua-Correa, Rodrigo, Thakur, Ritoban Basu, Beichman, Charles, Bender, Chad, Berger, Jean-Philippe, Bigioli, Azzurra, Bland-Hawthorn, Joss, Bourdarot, Guillaume, Bradford, Charles M., Broeke, Ronald, Bryant, Julia, Bundy, Kevin, Cheriton, Ross, Cvetojevic, Nick, Diab, Momen, Diddams, Scott A., Dinkelaker, Aline N., Duis, Jeroen, Eikenberry, Stephen, Ellis, Simon, Endo, Akira, Figer, Donald F., Fitzgerald, Michael, Gris-Sanchez, Itandehui, Gross, Simon, Grossard, Ludovic, Guyon, Olivier, Haffert, Sebastiaan Y., Halverson, Samuel, Harris, Robert J., He, Jinping, Herr, Tobias, Hottinger, Philipp, Huby, Elsa, Ireland, Michael, Jenson-Clem, Rebecca, Jewell, Jeffrey, Jocou, Laurent, Kraus, Stefan, Labadie, Lucas, Lacour, Sylvestre, Laugier, Romain, Ławniczuk, Katarzyna, Lin, Jonathan, Leifer, Stephanie, Leon-Sava, Sergio, Martin, Guillermo, Martinache, Frantz, Martinod, Marc-Antoine, Mazin, Benjamin A., Minardi, Stefano, Monnier, John D., Moreira, Reinan, Mourard, Denis, Nayak, Abani Shankar, Norris, Barnaby, Obrzud, Ewelina, Perraut, Karine, Reynaud, François, Sallum, Steph, Schiminovich, David, Schwab, Christian, Serbayn, Eugene, Soliman, Sherif, Stoll, Andreas, Tang, Liang, Tuthill, Peter, Vahala, Kerry, Vasisht, Gautam, Veilleux, Sylvain, Walter, Alexander B., Wollack, Edward J., Xin, Yinzi, Yang, Zongyin, Yerolatsitis, Stephanos, Zhang, Yang, Zou, Chang-Ling
Publikováno v:
J. Phys. Photonics 5 042501 (2023)
Photonics offer numerous functionalities that can be used to realize astrophotonic instruments. The most spectacular example to date is the ESO Gravity instrument at the Very Large Telescope in Chile. Integrated astrophotonic devices stand to offer c
Externí odkaz:
http://arxiv.org/abs/2311.00615
Autor:
Jovanovic, Nemanja, Xin, Yinzi, Fitzgerald, Michael P., Guyon, Olivier, Tuthill, Peter, Norris, Barnaby, Gatkine, Pradip, Sercel, Greg, Soda, Svarun, Kim, Yoo Jung, Lin, Jonathan, Leon-Saval, Sergio, Amezcua-Correa, Rodrigo, Yerolatsitis, Stephanos, Lozi, Julien, Vievard, Sebastien, Betters, Chris, Sallum, Steph, Levinstein, Daniel, Mawet, Dimitri, Jewell, Jeffrey, Wallace, J. Kent, Cvetojevic, Nick
Astrophysical research into exoplanets has delivered thousands of confirmed planets orbiting distant stars. These planets span a wide ranges of size and composition, with diversity also being the hallmark of system configurations, the great majority
Externí odkaz:
http://arxiv.org/abs/2309.08732
Autor:
Vievard, Sébastien, Lallement, Manon, Huby, Elsa, Lacour, Sylvestre, Guyon, Olivier, Jovanovic, Nemanja, Leon-saval, Sergio, Lozi, Julien, Deo, Vincent, Ahn, Kyohoon, Cvetojevic, Nick, Barjot, Kevin, Martin, Guillermo, Kenchington-Goldsmith, Harry-Dean, Duchêne, Gaspard, Kotani, Takayuki, Marchis, Franck, Rouan, Daniel, Fitzgerald, Michael, Sallum, Steph, Norris, Barnaby, Betters, Chris, Gatkine, Pradip, Lin, John, Kim, Yoo Jung, Pham, Cécil, Cassagnettes, Cédric, Billat, Adrien, Tamura, Motohide, Perrin, Guy
FIRST is a post Extreme Adaptive-Optics (ExAO) spectro-interferometer operating in the Visible (600-800 nm, R~400). Its exquisite angular resolution (a sensitivity analysis of on-sky data shows that bright companions can be detected down to 0.25lambd
Externí odkaz:
http://arxiv.org/abs/2308.14292
Autor:
Jovanovic, Nemanja, Gatkine, Pradip, Shen, Boqiang, Gao, Maodong, Cvetojevic, Nick, Lawniczuk, Katarzyna, Broeke, Ronald, Beichman, Charles, Leifer, Stephanie, Jewell, Jeffery, Vasisht, Gautam, Mawet, Dimitri
Publikováno v:
Opt. Express 30, 36745-36760 (2022)
Spectral shaping is critical to many fields of science. In astronomy for example, the detection of exoplanets via the Doppler effect hinges on the ability to calibrate a high resolution spectrograph. Laser frequency combs can be used for this, but th
Externí odkaz:
http://arxiv.org/abs/2210.01264