Generation of broadband spontaneous parametric fluorescence using multiple bulk nonlinear crystals
Abstract
We propose a novel method for generating broadband spontaneous parametric fluorescence by using a set of bulk nonlinear crystals (NLCs). We also demonstrate this scheme experimentally. Our method employs a superposition of spontaneous parametric fluorescence spectra generated using multiple bulk NLCs. A typical bandwidth of 160 nm (73 THz) with a degenerate wavelength of 808 nm was achieved using two beta-barium-borate (BBO) crystals, whereas a typical bandwidth of 75 nm (34 THz) was realized using a single BBO crystal. We also observed coincidence counts of generated photon pairs in a non-collinear configuration. The bandwidth could be further broadened by increasing the number of NLCs. Our demonstration suggests that a set of four BBO crystals could realize a bandwidth of approximately 215 nm (100 THz).We also discuss the stability of Hong-Ou-Mandel two-photon interference between the parametric fluorescence generated by this scheme. Our simple scheme is easy to implement with conventional NLCs and does not require special devices.
Keywords
Cite
@article{arxiv.1207.2269,
title = {Generation of broadband spontaneous parametric fluorescence using multiple bulk nonlinear crystals},
author = {Masayuki Okano and Ryo Okamoto and Akira Tanaka and Shanthi Subashchandran and Shigeki Takeuchi},
journal= {arXiv preprint arXiv:1207.2269},
year = {2012}
}
Comments
11 pages, 6 figures