19 citations · 39 across the 7 of their papers we have counts for
7 papers
Self-focusing of high-intensity beams with grid structures
Jiaqi Wang, Yang Xu, Saumya Choudhary +2
Laser beams with high optical power propagating in a Kerr medium can undergo self-focusing when their power exceeds a critical power determined by the optical properties of the med…
Hybrid Deep Reconstruction for Vignetting-Free Upconversion Imaging through Scattering in ENZ Materials
Hao Zhang, Yang Xu, Wenwen Zhang +10
Optical imaging through turbid or heterogeneous environments (collectively referred to as complex media) is fundamentally challenged by scattering, which scrambles structured spati…
High-fidelity spatial information transfer through dynamic scattering media by an epsilon-near-zero time-gate
Yang Xu, Saumya Choudhary, Long D. Nguyen +7
Transparent conducting oxides (TCO) such as indium-tin-oxide (ITO) exhibit strong optical nonlinearity in the frequency range where their permittivities are near zero. We leverage…
Stimulated emission tomography for efficient characterization of spatial entanglement
Yang Xu, Saumya Choudhary, Robert W. Boyd
Stimulated emission tomography (SET) is an excellent tool for characterizing the process of spontaneous parametric down-conversion (SPDC), which is commonly used to create pairs of…
Controlling nonlinear rogue wave formation using the coherence length of phase noise
Saumya Choudhary, A. Nicholas Black, Aku Antikainen +1
Weak phase noise present on an optical field can be amplified by a self-focusing nonlinearity and form intense "rogue wave" features. Here, we study the effect of the coherence len…
Suppression of Nonlinear Optical Rogue Wave Formation Using Polarization-Structured Beams
A. Nicholas Black, Saumya Choudhary, E. Samuel Arroyo-Rivera +2
A nonlinear self-focusing material can amplify random small-amplitude phase modulations present in an optical beam, leading to the formation of amplitude singularities commonly ref…
Measurement of the radial mode spectrum of photons through a phase-retrieval method
Saumya Choudhary, Rachel Sampson, Yoko Miyamoto +4
We propose and demonstrate a simple and easy-to-implement projective-measurement protocol to determine the radial index 'p' of a Laguerre-Gaussian (LGlp) mode. Our method entails c…