Ghost Imaging Using Photon Pairs Generated from Parametric Down Conversion in Type-II Periodically-poled KTiOPO4

2013 ◽  
Vol 63 (7) ◽  
pp. 771-777
Author(s):  
Hee Jung LEE ◽  
Geu Lim LEE ◽  
Heonoh KIM ◽  
Han Seb MOON*
Keyword(s):  
Type Ii ◽  
Ghost Imaging ◽  
Periodically Poled ◽  
Photon Pairs ◽  
Parametric Down Conversion ◽  
Down Conversion

Generation of correlated photon pairs in type-II parametric down conversion—revisited

2001 ◽  
Vol 48 (13) ◽  
pp. 1997-2007 ◽  
Author(s):  
Christian Kurtsiefer ◽  
Markus Oberparleiter ◽  
Harald Weinfurter
Keyword(s):  
Type Ii ◽  
Photon Pairs ◽  
Parametric Down Conversion ◽  
Down Conversion

800-nm Band Cross-Polarized Photon Pair Source Using Type-II Parametric Down-Conversion in Periodically Poled Lithium Niobate

2007 ◽  
Vol 46 (No. 44) ◽  
pp. L1064-L1067 ◽  
Author(s):  
Shigehiro Nagano ◽  
Ryosuke Shimizu ◽  
Yohei Sugiura ◽  
Koji Suizu ◽  
Keiichi Edamatsu ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Photon Pair ◽  
Type Ii ◽  
Periodically Poled ◽  
Periodically Poled Lithium Niobate ◽  
Parametric Down Conversion ◽  
Down Conversion

Generation of Cross-Polarized Photon Pairs via Type-II Third-Order Quasi-Phase Matched Parametric Down-Conversion

2009 ◽  
Vol 48 (5) ◽  
pp. 050205 ◽  
Author(s):  
Shigehiro Nagano ◽  
Atsushi Syouji ◽  
Ryosuke Shimizu ◽  
Koji Suizu ◽  
Hiromasa Ito ◽  
...  
Keyword(s):  
Type Ii ◽  
Third Order ◽  
Photon Pairs ◽  
Parametric Down Conversion ◽  
Down Conversion

Generation of correlated photon pairs in type-II parametric down conversion--revisited

2001 ◽  
Vol 48 (13) ◽  
pp. 1997-2007 ◽  
Author(s):  
Christian Kurtsiefer ◽  
Markus Oberparleiter ◽  
Harald Weinfurter
Keyword(s):  
Type Ii ◽  
Photon Pairs ◽  
Parametric Down Conversion ◽  
Down Conversion

scholarly journals Investigation of 1064-nm Pumped Type II SPDC in Potassium Niobate for Generation of High Spectral Purity Photon Pairs

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 599
Author(s):  
Donghwa Lee ◽  
Ilhwan Kim ◽  
Kwangjo Lee
Keyword(s):  
Nonlinear Optic ◽  
High Sensitivity ◽  
Potassium Niobate ◽  
Spectral Purity ◽  
Type Ii ◽  
Extended Phase ◽  
Photon Pairs ◽  
Parametric Down Conversion ◽  
Good Potential ◽  
Down Conversion

The generation and detection of nonclassical light of about 2 μm has good potential in an emerging field of high-sensitivity metrology, especially gravitational wave detection, as well as free-space quantum communication. A pair of photons is generated through a spontaneous parametric down-conversion (SPDC) process in a nonlinear optic crystal, which can be properly entangled in a spatial region where two beams with each polarization overlap or in a Sagnac-loop interferometer configuration. We investigated theoretically and numerically Type II SPDC in a potassium niobate (KNbO3, KN) crystal, which is useful as a material platform for generating photon pairs of high spectral purity in the 2-μm range. The technique is based on the frequency degenerate SPDC under Type II extended phase matching (EPM). We described the EPM characteristics of KN and showed that it is practically feasible for a 1064-nm pumped SPDC under moderate temperature conditions. The effective nonlinear optic coefficient of KN is at least four-times larger than those of other crystals using the Type II EPM approach, which implies a significant improvement in SPDC efficiency. The joint spectral analysis showed that a pair of photons can be generated with a high purity of 0.995 through proper pump filtering.

scholarly journals Coherently controlled quantum features in a coupled interferometric scheme

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Byoung S. Ham
Keyword(s):  
Optical Materials ◽  
Bell Inequality ◽  
Third Order ◽  
Deterministic Method ◽  
Photon Pairs ◽  
Wave Nature ◽  
Parametric Down Conversion ◽  
Pair Generation ◽  
Entangled Photon Pairs ◽  
Down Conversion

AbstractOver the last several decades, entangled photon pairs generated by spontaneous parametric down conversion processes in both second-order and third-order nonlinear optical materials have been intensively studied for various quantum features such as Bell inequality violation and anticorrelation. In an interferometric scheme, anticorrelation results from photon bunching based on randomness when entangled photon pairs coincidently impinge on a beam splitter. Compared with post-measurement-based probabilistic confirmation, a coherence version has been recently proposed using the wave nature of photons. Here, the origin of quantum features in a coupled interferometric scheme is investigated using pure coherence optics. In addition, a deterministic method of entangled photon-pair generation is proposed for on-demand coherence control of quantum processing.

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