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Generation of broadband spontaneous parametric fluorescence using multiple bulk nonlinear crystals
| Title: | Generation of broadband spontaneous parametric fluorescence using multiple bulk nonlinear crystals |
| Authors: | Okano, Masayuki Browse this author | | Okamoto, Ryo Browse this author →KAKEN DB | | Tanaka, Akira Browse this author | | Subashchandran, Shanthi Browse this author | | Takeuchi, Shigeki Browse this author →KAKEN DB |
| Issue Date: | 18-Jun-2012 |
| Publisher: | Optical Society of America |
| Journal Title: | Optics Express |
| Volume: | 20 |
| Issue: | 13 |
| Start Page: | 13977 |
| End Page: | 13987 |
| Publisher DOI: | 10.1364/OE.20.013977 |
| PMID: | 22714463 |
| 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 β-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. |
| Rights: | © 2012 Optical Society of America |
| Type: | article |
| URI: | http://hdl.handle.net/2115/49602 |
| Appears in Collections: | 電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 竹内 繁樹
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