Zobrazeno 1 - 10
of 3 018
pro vyhledávání: '"P Derby"'
Autor:
Blomquist, Solvay, Choi, Heejoo, Kang, Hyukmo, Derby, Kevin, Nicolas, Pierre, Douglas, Ewan S., Kim, Daewook
When a telescope doesn't reach a reasonable point spread function on the detector or detectable wavefront quality after initial assembly, a coarse phase alignment on-sky is crucial. Before utilizing a closed loop adaptive optics system, the observato
Externí odkaz:
http://arxiv.org/abs/2409.04640
Autor:
Tunes, M. A., Parkison, D., Sun, B., Willenshofer, P., Samberger, S., Derby, B. K., Baldwin, J. K. S., Fensin, S. J., Sobieraj, D., Wróbel, J. S., Byggmästar, J., Pogatscher, S., Martinez, E., Nguyen-Manh, D., El-Atwani, O.
Refractory High-Entropy Alloys (RHEAs) hold promising potential to be used as structural materials in future nuclear fusion reactors, where W and its alloys are currently leading candidates. Fusion materials must be able to withstand extreme conditio
Externí odkaz:
http://arxiv.org/abs/2406.15022
Autor:
Ashcraft, Jaren N., Douglas, Ewan S., Anche, Ramya, Dube, Brandon D., Derby, Kevin Z., Furenlid, Lars, Kautz, Maggie, Kim, Daewook, Milani, Kian, Riggs, A. J. Eldorado
Paraxial diffraction modeling based on the Fourier transform has seen widespread implementation for simulating the response of a diffraction-limited optical system. For systems where the paraxial assumption is not sufficient, a class of algorithms ha
Externí odkaz:
http://arxiv.org/abs/2404.12454
Autor:
Bosse, Jan Lukas, Childs, Andrew M., Derby, Charles, Gambetta, Filippo Maria, Montanaro, Ashley, Santos, Raul A.
In this work we propose an approach for implementing time-evolution of a quantum system using product formulas. The quantum algorithms we develop have provably better scaling (in terms of gate complexity and circuit depth) than a naive application of
Externí odkaz:
http://arxiv.org/abs/2403.08729
We explore the impact of different telescope apertures on the image simulation and deconvolution processes within the context of a synthetic star field. Using HCIPy and Python programming, we modelled six telescope apertures namely Circular, Hexagona
Externí odkaz:
http://arxiv.org/abs/2402.05233
The proliferation of news media outlets has increased the demand for intelligent systems capable of detecting redundant information in news articles in order to enhance user experience. However, the heterogeneous nature of news can lead to spurious f
Externí odkaz:
http://arxiv.org/abs/2309.13080
Autor:
Derby, Kevin Z., Milani, Kian, Blomquist, Solvay, Van Gorkom, Kyle, Haffert, Sebastiaan, Kang, Hyukmo, Tailor, Hill, Choi, Heejoo, Mendillo, Christopher B., Males, Jared R., Kim, Daewook, Douglas, Ewan S.
Extreme wavefront correction is required for coronagraphs on future space telescopes to reach 1e-8 or better starlight suppression for the direct imaging and characterization of exoplanets in reflected light. Thus, a suite of wavefront sensors workin
Externí odkaz:
http://arxiv.org/abs/2309.05748
Autor:
Douglas, Ewan S, Aldering, Greg, Allan, Greg W., Anche, Ramya, Angel, Roger, Ard, Cameron C., Chakrabarti, Supriya, Close, Laird M., Derby, Kevin, Edelstein, Jerry, Ford, John, Gersh-Range, Jessica, Haffert, Sebastiaan Y., Ingraham, Patrick J., Kang, Hyukmo, Kelly, Douglas M., Kim, Daewook, Lesser, Michael, Leisenring, Jarron M., Lin, Yu-Chia, Males, Jared R., Martin, Buddy, Payan, Bianca Alondra, M., Sai Krishanth P., Rubin, David, Selznick, Sanford, Van Gorkom, Kyle, Jannuzi, Buell T., Perlmutter, Saul
New development approaches, including launch vehicles and advances in sensors, computing, and software, have lowered the cost of entry into space, and have enabled a revolution in low-cost, high-risk Small Satellite (SmallSat) missions. To bring abou
Externí odkaz:
http://arxiv.org/abs/2309.04934
Autor:
Ashcraft, Jaren N., Douglas, Ewan S., Kim, Daewook, Riggs, A. J. E., Anche, Ramya, Brendel, Trent, Derby, Kevin, Dube, Brandon D., Jarecki, Quinn, Jenkins, Emory, Milani, Kian
Integrated optical models allow for accurate prediction of the as-built performance of an optical instrument. Optical models are typically composed of a separate ray trace and diffraction model to capture both the geometrical and physical regimes of
Externí odkaz:
http://arxiv.org/abs/2309.04649
In order to reach contrast ratios of $10^{-8}$ and beyond, coronagraph testbeds need source optics that reliably emulate nearly-point-like starlight, with microfabricated pinholes being a compelling solution. To verify, a physical optics model of the
Externí odkaz:
http://arxiv.org/abs/2309.04604