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Volumn 77, Issue 4, 2008, Pages

Spectral properties of entangled photon pairs generated via frequency-degenerate type-I spontaneous parametric down-conversion

Author keywords

[No Author keywords available]

Indexed keywords

COMPUTER SIMULATION; LASER BEAMS; QUANTUM ENTANGLEMENT; SPECTRUM ANALYSIS;

EID: 41849145330     PISSN: 10502947     EISSN: 10941622     Source Type: Journal    
DOI: 10.1103/PhysRevA.77.043807     Document Type: Article
Times cited : (65)

References (45)
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    • Here, we deal with the longitudinal phase-matching condition which is not perfect. We, however, assume that the transverse phase matching is perfect as the pump beam diameter is many orders larger than the wavelengths of the photons. The perfect transverse phase-matching condition leads to the spatial quantum correlations between the photon pair. For example, quantum imaging and quantum interference make use of the transverse quantum correlations present in the photon pair system.
    • Here, we deal with the longitudinal phase-matching condition which is not perfect. We, however, assume that the transverse phase matching is perfect as the pump beam diameter is many orders larger than the wavelengths of the photons. The perfect transverse phase-matching condition leads to the spatial quantum correlations between the photon pair. For example, quantum imaging and quantum interference make use of the transverse quantum correlations present in the photon pair system.
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    • DK480 (Spectral Products, formerly CVI) was installed with a AG1200-00750 grating. The specification of the AG1200-00750 grating showed a sharp efficiency drop from roughly 84% at 600 nm to roughly 50% at 800 nm for P polarization. CS260 (Newport, formerly Oriel) was installed with a model 74066 grating. The specification of the model 74066 grating showed a similar efficiency drop from roughly 45% at 600 nm to roughly 25% at 800 nm for P polarization. The grating efficiency curves can be found on the websites of the respective companies.
    • DK480 (Spectral Products, formerly CVI) was installed with a AG1200-00750 grating. The specification of the AG1200-00750 grating showed a sharp efficiency drop from roughly 84% at 600 nm to roughly 50% at 800 nm for P polarization. CS260 (Newport, formerly Oriel) was installed with a model 74066 grating. The specification of the model 74066 grating showed a similar efficiency drop from roughly 45% at 600 nm to roughly 25% at 800 nm for P polarization. The grating efficiency curves can be found on the websites of the respective companies.
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    • The quantum efficiency of the single-photon detectors (SPCM-AQR, Perkin-Elmer) is wavelength dependent. The variation of the quantum efficiency as a function of the wavelength (within the region of interest) is not as strong as the grating efficiency change. The SPCM-AQR series datasheet can be found at
    • The quantum efficiency of the single-photon detectors (SPCM-AQR, Perkin-Elmer) is wavelength dependent. The variation of the quantum efficiency as a function of the wavelength (within the region of interest) is not as strong as the grating efficiency change. The SPCM-AQR series datasheet can be found at www.perkinelmer.com/opto
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    • The accidental coincidences, visible in Fig. 4, can be determined by multiplying the single count rates of the two detectors and the coincidence window. To show the joint spectral measurement data without the contribution of the accidental coincidences, we have subtracted the accidental coincidences from the raw data.
    • The accidental coincidences, visible in Fig. 4, can be determined by multiplying the single count rates of the two detectors and the coincidence window. To show the joint spectral measurement data without the contribution of the accidental coincidences, we have subtracted the accidental coincidences from the raw data.
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.