Výsledky vyhledávání - "Choudhary, Saumya"

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Stimulated emission tomography for efficient characterization of spatial entanglement

Autor: Xu, Yang, Choudhary, Saumya, Boyd, Robert W.

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 entangled photons for use in quantum information protocols. The use o

Externí odkaz: http://arxiv.org/abs/2403.05036

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Controlling nonlinear rogue wave formation using the coherence length of phase noise

Autor: Choudhary, Saumya, Black, A. Nicholas, Antikainen, Aku, Boyd, Robert W.

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 length (or grain size) of this phase noise on the likelihood of rogue wav

Externí odkaz: http://arxiv.org/abs/2210.05137

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Akademický článek

Phase-matched third-harmonic generation in silicon nitride waveguides

Autor: Vijayakumar Surendar, Vyas Kaustubh, Espinosa Daniel H. G., Reshef Orad, Song Meiting, Awan Kashif Masud, Choudhary Saumya, Cardenas Jaime, Boyd Robert W., Dolgaleva Ksenia

Publikováno v: Nanophotonics, Vol 13, Iss 18, Pp 3385-3393 (2024)

Third-harmonic generation (THG) in silicon nitride waveguides is an ideal source of coherent visible light, suited for ultrafast pulse characterization, telecom signal monitoring and self-referenced comb generation due to its relatively large nonline

Externí odkaz: https://doaj.org/article/099a54299fa142b0ad651cf9e7d26825

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Suppression of Nonlinear Optical Rogue Wave Formation Using Polarization-Structured Beams

Autor: Black, A. Nicholas, Choudhary, Saumya, Arroyo-Rivera, E. Samuel, Woodworth, Hayden, Boyd, Robert W.

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 referred to as optical caustics. By imposing polarization structuring on

Externí odkaz: http://arxiv.org/abs/2204.08372

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Dissertation/ Thesis

On Plasmonic Superradiance, the Scaling Laws of Spontaneous Parametric Downconversion, and the Principles and Recent Advances in Nonlinear Optics

Autor: Choudhary, Saumya

This thesis covers three different topics. The first part is a pedagogical review of the basic principles and recent advances in nonlinear optics. It was originally written as a chapter for the proceedings of the “International School of Physics (E

Externí odkaz: http://hdl.handle.net/10393/35132

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Measurement of the radial mode spectrum of photons through a phase-retrieval method

Autor: Choudhary, Saumya, Sampson, Rachel, Miyamoto, Yoko, Magana-Loaiza, Omar S., Rafsanjani, Seyed Mohammad Hashemi, Mirhosseini, Mohammad, Boyd, Robert W.

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 converting any specified high-order LG0p mode into a near-Gaussian dist

Externí odkaz: http://arxiv.org/abs/1809.07980

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