Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Nathan Dostart"'
Autor:
Aram Gragossian, Bruce Barnes, Jacob Heppler, Jacob Follman, Nathan Dostart, Ruth Amundsen, Adam Ben Shabat, Glenn Hines, Farzin Amzajerdian
Publikováno v:
Optica Advanced Photonics Congress 2022.
The new generation of Navigation Doppler Lidar has been designed, developed, and tested for lunar missions. Comprehensive environmental testing is performed to assess the performance of the instrument for upcoming lunar missions and future missions t
Autor:
Farzin Amzajerdian, Alexander Bulyshev, Paul Brewster, Guoqing Shen, Jacob Heppler, Nathan Dostart, Aram Gragossian
Publikováno v:
Optica Advanced Photonics Congress 2022.
A Flash Lidar utilizing a novel Super-Resolution technique has been developed for providing Terrain Relative Navigation and Hazard Avoidance capabilities onboard landing vehicles. Performance of this lidar for space and aerial vehicles will be discus
Autor:
Nathan Dostart, Aram Gragossian, Farzin Amzajerdian, Glenn Hines, Lance Proctor, Bruce Barnes, Randa Ehlertani, Diego Pierrottet
Publikováno v:
Optica Advanced Photonics Congress 2022.
We analyze performance changes on a NASA-developed lidar system resulting from vibration loads expected during spacecraft landing. Vibration-induced laser linewidth broadening and reduced measurement precision are demonstrated and related to vibratio
Autor:
Bruce W. Barnes, Diego F. Pierrottet, Nathan Dostart, Glenn D. Hines, Aram Gragossian, Lance L. Proctor, Farzin Amzajerdian
Publikováno v:
Electro-Optical and Infrared Systems: Technology and Applications XVIII and Electro-Optical Remote Sensing XV.
The operation of a coherent Doppler lidar, developed by NASA for missions to planetary bodies, is analyzed and its projected performance is described. The lidar transmits three laser beams at different but fixed directions and measures line-of-sight
Autor:
Nathan Dostart, Bohan Zhang, Michael Brand, Kenaish Al Qubaisi, Deniz Onural, Daniel Feldkhun, Miloš Popović, Kelvin Wagner
Publikováno v:
Optics Express. 30:24589
Optical phased arrays (OPAs) which beam-steer in two dimensions (2D) are currently limited to grating row spacings well above a half wavelength. This gives rise to grating lobes along one axis which limit the field of view (FOV), introduce return sig
Publikováno v:
Optics letters. 46(3)
Optical isolators, while commonplace in bulk- and fiber-optic systems, remain a key missing component in integrated photonic systems. Isolation using magneto-optic effects has been difficult to implement due to fabrication restraints, motivating use
Publikováno v:
Conference on Lasers and Electro-Optics.
We demonstrate a high-resolution, crossed-dispersion integrated photonic spectrometer capable of high-etendue, multimode operation. The first experimental single-mode design achieves record performance per volume with 1.5 GHz resolution and 13 THz ba
Publikováno v:
OSA Imaging and Applied Optics Congress 2021 (3D, COSI, DH, ISA, pcAOP).
The serpentine integrated grating spectrometer uses a meandering delay line and outcoupling grating rows to implement a crossed-dispersion wide-bandwidth integrated spectrometer with resolving power of 105 and 104 spectral bins in a few cm3 volume.
Autor:
Nathan Dostart, Michael Brand, Anatol Khilo, Kenaish Al Qubaisi, Milos A. Popovic, Bohan Zhang, Kelvin H. Wagner, Daniel Feldkhun, Deniz Onural
Publikováno v:
Silicon Photonics XV.
We describe a scalable, tiled optical beam steering aperture based on integrated silicon photonic circuit beam steering tiles. A novel beam steering tile design, the serpentine optical phased array (SOPA), enables high fill factor tiled apertures, ve
Autor:
Nathan Dostart, Michael Brand, Anatol Khilo, Bohan Zhang, Kelvin H. Wagner, Deniz Onural, Daniel Feldkhun, Milos A. Popovic, Kenaish Al Qubaisi
Optical phased arrays (OPAs) implemented in integrated photonic circuits could enable a variety of 3D sensing, imaging, illumination, and ranging applications, and their convergence in new LIDAR technology. However, current integrated OPA approaches
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa9df9995db19df1d102785f050ae6e6
http://arxiv.org/abs/2002.06781
http://arxiv.org/abs/2002.06781