02/01/2021: P. E. Alcaraz, R. S. Ketchum, and P.-A. Blanche, “Robust phase unwrapping algorithm based on enhanced denoising and fringe quality improvement routines,” OSA Continuum 4, 633-649 (2021). Link
Born out of necessity because we were not finding any algorithm robust enough for unwrapping our experimental data, we created our own and verified its performance.
01/06/2021: Pedro Enrique Alcaraz and Pierre-Alexandre Blanche, “Advanced volume holographic filter to improve the SNR of polychromatic sources in a noisy environment,” Opt. Express 29, 1232-1243 (2021)Link
In this article, we are demonstrating how to use holograms to select light sources according to their distance. Useful to see through scattering media such as for doing astronomy observation in broad daylight, seeing through the atmosphere.
Certificate of appreciation from OSA for my peer review activity during 2019. According to my records I helped with 9 papers.
07/08/2020: I will serve as a subcommittee member for the Fabrication, Design and Instrumentation session of the OSA FIO 2020 conference. Link
06/29/2020: I will serve as on of the Editors for the OSA Digital Holography and 3D Imaging 2020 Feature Issue. Submission Deadline is August 1st 2020. Read the call for paper here.
06/25/2020: I will be presenting an invited paper about “Phase Retrieval in Tabletop Radar Range” during the Three-dimensional Sensing and Imaging Systems session of the OSA Imaging and Applied Optics Congress. Link
I will also preside the session JTh4D • Methods for Three-dimensional Imaging II (Joint DH and 3D) . Link
01/12/2019: P Picart et al., “Digital Holography and 3D Imaging: introduction to the joint feature issue in Applied Optics and Journal of the Optical Society of America A“, Applied Optics Vol. 58, Issue 34, pp. DH1-DH1 (2019). Link
01/15-17/2020: I will be participating to the OSA Incubator on “Solving the Bandwidth Challenge of Large 3D Displays“, Washington, DC USA. Link
10/16/2019: C. Bigler et al., “Holographic Waveguide HUD with in-line pupil expansion and 2D FOV expansion“, accepted for publication in Applied Optics, to appear in the Special issue on Digital Holography and 3-D Imaging, Vol.58, G326-G331 (2019). Link
In this publication, we present an head up display with expanded pupil using a waveguide and holograms. The geometry of the system is in-line instead of L shaped, which bring some benefits.
10/08/2019: C. Bigler at al., “Holographic Amplification of the Diffraction Angle from Optical Phase Array for Optical Beam Steering“, Applied Optics, Special issue on Digital Holography and 3-D Imaging 2019, Vol. 58, N.34, December 2019. Link
In this article we present a potential solution to the limited steering angle of phase array LIDAR due to large (compared to wavelength) pixel size.