J. C. Zwinkels, E. Ikonen, N. P. Fox, G. Ulm, and M. L. Rastello, “Photometry, radiometry and 'the candela': evolution in the classical and quantum world,” Metrologia 47(5), R15–R32 (2010).

[CrossRef]

E. Theocharous, M. A. Itzler, J. Y. Cheung, and C. J. Chunnilall, “The characterisation of the linearity of response and spatial uniformity of response of two InGaAs/InP Geiger-mode avalanche photodiodes,” IEEE J. Quantum Electron. 46(11), 1561–1567 (2010).

[CrossRef]

A. R. Beaumont, J. Y. Cheung, C. J. Chunnilall, J. Ireland, and M. G. White, “Providing reference standards and metrology for the few photon - photon counting community,” Nucl. Instrum. Methods Phys. Res. A 610(1), 183–187 (2009).

[CrossRef]

S. V. Polyakov and A. Migdall, “Quantum radiometry,” J. Mod. Opt. 56(9), 1045–1052 (2009).

[CrossRef]

S. V. Polyakov and A. L. Migdall, “High accuracy verification of a correlated-photon- based method for determining photoncounting detection efficiency,” Opt. Express 15(4), 1390–1407 (2007).

[CrossRef]
[PubMed]

J. Y. Cheung, C. J. Chunnilall, E. R. Woolliams, N. P. Fox, J. R. Mountford, J. Wang, and P. J. Thomas, “The quantum candela: a re-definition of the standard units for optical radiation,” J. Mod. Opt. 54(2-3), 373–396 (2007).

[CrossRef]

J. Y. Cheung, J. L. Gardner, A. Migdall, S. Polyakov, and M. Ware, “High accuracy dual lens transmittance measurements,” Appl. Opt. 46(22), 5396–5403 (2007).

[CrossRef]
[PubMed]

M. Ware and A. L. Migdall, “Single photon detector characterization using correlated photons: the march from feasibility to metrology,” J. Mod. Opt. 51, 1549–1557 (2004).

J. Y. Cheung, C. J. Chunnilall, and J. Wang, “Radiometric applications of correlated photon metrology,” Proc. SPIE 5551, 220–230 (2004).

[CrossRef]

J. Y. Cheung, M. P. Vaughan, J. R. M. Mountford, and C. J. Chunnilall, “Correlated photon metrology of detectors and sources,” Proc. SPIE 5161, 365–376 (2004).

[CrossRef]

W. S. Hartree, E. Theocharous, and N. P. Fox, “A wavelength tunable, quasi-cw laser source for high accuracy spectrometric measurement in the 200 nm to 500 nm region,” Proc. SPIE 4826, 104–112 (2003).

[CrossRef]

E. Usadi and L. Crane, “Laser-based spectrophotometry at NPL,” Proc. SPIE 5192, 36–45 (2003).

[CrossRef]

G. Brida, M. Genovese, and C. Novero, “On the measurement of photon flux in parametric down-conversion,” Eur. Phys. J. D 8(2), 273–275 (2000).

[CrossRef]

G. Brida, S. Castelletto, I. P. Degiovanni, C. Novero, and M. L. Rastello, “Quantum efficiency and dead time of single-photon counting photodiodes: a comparison between two measurement techniques,” Metrologia 37(5), 625–628 (2000).

[CrossRef]

G. P. Eppeldauer and D. C. Lynch, “Opto-mechanical and electronic design of a tunnel-trap Si radiometer,” J. Res. Natl. Inst. Stand. Technol. 105, 813–818 (2000).

S. D. Biller, N. A. Jelley, N. M. D. Thorman, N. P. Fox, and T. H. Ward, “Measurements of photomultiplier single photon counting efficiency for the Sudbury Neutrino Observatory,” Nucl. Instrum. Methods Phys Res. A 432(2-3), 364–373 (1999).

[CrossRef]

J. E. Martin, N. P. Fox, and P. J. Key, “A cryogenic radiometer for absolute radiometric measurements,” Metrologia 21(3), 147–155 (1985).

[CrossRef]

D. N. Klyshko, “Utilization of vacuum fluctuations as an optical brightness standard,” Sov. J. Quantum Electron. 7(5), 591–595 (1977).

[CrossRef]

D. C. Burnham and D. L. Weinberg, “Observation of simultaneity in parametric production of optical photon pairs,” Phys. Rev. Lett. 25(2), 84–87 (1970).

[CrossRef]

J. E. Midwinter and J. Warner, “The effects of phase matching method and of uniaxial crystal symmetry on the polar distribution of second-order non-linear optical polarization,” Br. J. Appl. Phys. 16(8), 1135–1142 (1965).

[CrossRef]

A. R. Beaumont, J. Y. Cheung, C. J. Chunnilall, J. Ireland, and M. G. White, “Providing reference standards and metrology for the few photon - photon counting community,” Nucl. Instrum. Methods Phys. Res. A 610(1), 183–187 (2009).

[CrossRef]

S. D. Biller, N. A. Jelley, N. M. D. Thorman, N. P. Fox, and T. H. Ward, “Measurements of photomultiplier single photon counting efficiency for the Sudbury Neutrino Observatory,” Nucl. Instrum. Methods Phys Res. A 432(2-3), 364–373 (1999).

[CrossRef]

G. Brida, S. Castelletto, I. P. Degiovanni, C. Novero, and M. L. Rastello, “Quantum efficiency and dead time of single-photon counting photodiodes: a comparison between two measurement techniques,” Metrologia 37(5), 625–628 (2000).

[CrossRef]

G. Brida, M. Genovese, and C. Novero, “On the measurement of photon flux in parametric down-conversion,” Eur. Phys. J. D 8(2), 273–275 (2000).

[CrossRef]

D. C. Burnham and D. L. Weinberg, “Observation of simultaneity in parametric production of optical photon pairs,” Phys. Rev. Lett. 25(2), 84–87 (1970).

[CrossRef]

S. Castelletto, I. P. Degiovanni, and M. L. Rastello, “Evaluation of statistical noise in measurements based on correlated photons,” J. Opt. Soc. Am. B 19(6), 1247–1258 (2002).

[CrossRef]

G. Brida, S. Castelletto, I. P. Degiovanni, C. Novero, and M. L. Rastello, “Quantum efficiency and dead time of single-photon counting photodiodes: a comparison between two measurement techniques,” Metrologia 37(5), 625–628 (2000).

[CrossRef]

E. Theocharous, M. A. Itzler, J. Y. Cheung, and C. J. Chunnilall, “The characterisation of the linearity of response and spatial uniformity of response of two InGaAs/InP Geiger-mode avalanche photodiodes,” IEEE J. Quantum Electron. 46(11), 1561–1567 (2010).

[CrossRef]

A. R. Beaumont, J. Y. Cheung, C. J. Chunnilall, J. Ireland, and M. G. White, “Providing reference standards and metrology for the few photon - photon counting community,” Nucl. Instrum. Methods Phys. Res. A 610(1), 183–187 (2009).

[CrossRef]

J. Y. Cheung, C. J. Chunnilall, E. R. Woolliams, N. P. Fox, J. R. Mountford, J. Wang, and P. J. Thomas, “The quantum candela: a re-definition of the standard units for optical radiation,” J. Mod. Opt. 54(2-3), 373–396 (2007).

[CrossRef]

J. Y. Cheung, J. L. Gardner, A. Migdall, S. Polyakov, and M. Ware, “High accuracy dual lens transmittance measurements,” Appl. Opt. 46(22), 5396–5403 (2007).

[CrossRef]
[PubMed]

J. Y. Cheung, C. J. Chunnilall, and J. Wang, “Radiometric applications of correlated photon metrology,” Proc. SPIE 5551, 220–230 (2004).

[CrossRef]

J. Y. Cheung, M. P. Vaughan, J. R. M. Mountford, and C. J. Chunnilall, “Correlated photon metrology of detectors and sources,” Proc. SPIE 5161, 365–376 (2004).

[CrossRef]

E. Theocharous, M. A. Itzler, J. Y. Cheung, and C. J. Chunnilall, “The characterisation of the linearity of response and spatial uniformity of response of two InGaAs/InP Geiger-mode avalanche photodiodes,” IEEE J. Quantum Electron. 46(11), 1561–1567 (2010).

[CrossRef]

A. R. Beaumont, J. Y. Cheung, C. J. Chunnilall, J. Ireland, and M. G. White, “Providing reference standards and metrology for the few photon - photon counting community,” Nucl. Instrum. Methods Phys. Res. A 610(1), 183–187 (2009).

[CrossRef]

J. Y. Cheung, C. J. Chunnilall, E. R. Woolliams, N. P. Fox, J. R. Mountford, J. Wang, and P. J. Thomas, “The quantum candela: a re-definition of the standard units for optical radiation,” J. Mod. Opt. 54(2-3), 373–396 (2007).

[CrossRef]

J. Y. Cheung, C. J. Chunnilall, and J. Wang, “Radiometric applications of correlated photon metrology,” Proc. SPIE 5551, 220–230 (2004).

[CrossRef]

J. Y. Cheung, M. P. Vaughan, J. R. M. Mountford, and C. J. Chunnilall, “Correlated photon metrology of detectors and sources,” Proc. SPIE 5161, 365–376 (2004).

[CrossRef]

E. Usadi and L. Crane, “Laser-based spectrophotometry at NPL,” Proc. SPIE 5192, 36–45 (2003).

[CrossRef]

S. Castelletto, I. P. Degiovanni, and M. L. Rastello, “Evaluation of statistical noise in measurements based on correlated photons,” J. Opt. Soc. Am. B 19(6), 1247–1258 (2002).

[CrossRef]

G. Brida, S. Castelletto, I. P. Degiovanni, C. Novero, and M. L. Rastello, “Quantum efficiency and dead time of single-photon counting photodiodes: a comparison between two measurement techniques,” Metrologia 37(5), 625–628 (2000).

[CrossRef]

G. P. Eppeldauer and D. C. Lynch, “Opto-mechanical and electronic design of a tunnel-trap Si radiometer,” J. Res. Natl. Inst. Stand. Technol. 105, 813–818 (2000).

J. C. Zwinkels, E. Ikonen, N. P. Fox, G. Ulm, and M. L. Rastello, “Photometry, radiometry and 'the candela': evolution in the classical and quantum world,” Metrologia 47(5), R15–R32 (2010).

[CrossRef]

J. Y. Cheung, C. J. Chunnilall, E. R. Woolliams, N. P. Fox, J. R. Mountford, J. Wang, and P. J. Thomas, “The quantum candela: a re-definition of the standard units for optical radiation,” J. Mod. Opt. 54(2-3), 373–396 (2007).

[CrossRef]

W. S. Hartree, E. Theocharous, and N. P. Fox, “A wavelength tunable, quasi-cw laser source for high accuracy spectrometric measurement in the 200 nm to 500 nm region,” Proc. SPIE 4826, 104–112 (2003).

[CrossRef]

S. D. Biller, N. A. Jelley, N. M. D. Thorman, N. P. Fox, and T. H. Ward, “Measurements of photomultiplier single photon counting efficiency for the Sudbury Neutrino Observatory,” Nucl. Instrum. Methods Phys Res. A 432(2-3), 364–373 (1999).

[CrossRef]

N. P. Fox, “Trap detectors and their properties,” Metrologia 28(3), 197–202 (1991).

[CrossRef]

J. E. Martin, N. P. Fox, and P. J. Key, “A cryogenic radiometer for absolute radiometric measurements,” Metrologia 21(3), 147–155 (1985).

[CrossRef]

G. Brida, M. Genovese, and C. Novero, “On the measurement of photon flux in parametric down-conversion,” Eur. Phys. J. D 8(2), 273–275 (2000).

[CrossRef]

W. S. Hartree, E. Theocharous, and N. P. Fox, “A wavelength tunable, quasi-cw laser source for high accuracy spectrometric measurement in the 200 nm to 500 nm region,” Proc. SPIE 4826, 104–112 (2003).

[CrossRef]

J. C. Zwinkels, E. Ikonen, N. P. Fox, G. Ulm, and M. L. Rastello, “Photometry, radiometry and 'the candela': evolution in the classical and quantum world,” Metrologia 47(5), R15–R32 (2010).

[CrossRef]

A. R. Beaumont, J. Y. Cheung, C. J. Chunnilall, J. Ireland, and M. G. White, “Providing reference standards and metrology for the few photon - photon counting community,” Nucl. Instrum. Methods Phys. Res. A 610(1), 183–187 (2009).

[CrossRef]

E. Theocharous, M. A. Itzler, J. Y. Cheung, and C. J. Chunnilall, “The characterisation of the linearity of response and spatial uniformity of response of two InGaAs/InP Geiger-mode avalanche photodiodes,” IEEE J. Quantum Electron. 46(11), 1561–1567 (2010).

[CrossRef]

S. D. Biller, N. A. Jelley, N. M. D. Thorman, N. P. Fox, and T. H. Ward, “Measurements of photomultiplier single photon counting efficiency for the Sudbury Neutrino Observatory,” Nucl. Instrum. Methods Phys Res. A 432(2-3), 364–373 (1999).

[CrossRef]

J. E. Martin, N. P. Fox, and P. J. Key, “A cryogenic radiometer for absolute radiometric measurements,” Metrologia 21(3), 147–155 (1985).

[CrossRef]

D. N. Klyshko, “Utilization of vacuum fluctuations as an optical brightness standard,” Sov. J. Quantum Electron. 7(5), 591–595 (1977).

[CrossRef]

G. P. Eppeldauer and D. C. Lynch, “Opto-mechanical and electronic design of a tunnel-trap Si radiometer,” J. Res. Natl. Inst. Stand. Technol. 105, 813–818 (2000).

J. E. Martin, N. P. Fox, and P. J. Key, “A cryogenic radiometer for absolute radiometric measurements,” Metrologia 21(3), 147–155 (1985).

[CrossRef]

J. E. Midwinter and J. Warner, “The effects of phase matching method and of uniaxial crystal symmetry on the polar distribution of second-order non-linear optical polarization,” Br. J. Appl. Phys. 16(8), 1135–1142 (1965).

[CrossRef]

S. V. Polyakov and A. Migdall, “Quantum radiometry,” J. Mod. Opt. 56(9), 1045–1052 (2009).

[CrossRef]

J. Y. Cheung, J. L. Gardner, A. Migdall, S. Polyakov, and M. Ware, “High accuracy dual lens transmittance measurements,” Appl. Opt. 46(22), 5396–5403 (2007).

[CrossRef]
[PubMed]

J. R. Mountford, G. Porrovecchio, M. Smid, and R. Smid, “Development of a switched integrator amplifier for high-accuracy optical measurements,” Appl. Opt. 47(31), 5821–5828 (2008).

[CrossRef]
[PubMed]

J. Y. Cheung, C. J. Chunnilall, E. R. Woolliams, N. P. Fox, J. R. Mountford, J. Wang, and P. J. Thomas, “The quantum candela: a re-definition of the standard units for optical radiation,” J. Mod. Opt. 54(2-3), 373–396 (2007).

[CrossRef]

J. Y. Cheung, M. P. Vaughan, J. R. M. Mountford, and C. J. Chunnilall, “Correlated photon metrology of detectors and sources,” Proc. SPIE 5161, 365–376 (2004).

[CrossRef]

G. Brida, S. Castelletto, I. P. Degiovanni, C. Novero, and M. L. Rastello, “Quantum efficiency and dead time of single-photon counting photodiodes: a comparison between two measurement techniques,” Metrologia 37(5), 625–628 (2000).

[CrossRef]

G. Brida, M. Genovese, and C. Novero, “On the measurement of photon flux in parametric down-conversion,” Eur. Phys. J. D 8(2), 273–275 (2000).

[CrossRef]

J. C. Zwinkels, E. Ikonen, N. P. Fox, G. Ulm, and M. L. Rastello, “Photometry, radiometry and 'the candela': evolution in the classical and quantum world,” Metrologia 47(5), R15–R32 (2010).

[CrossRef]

S. Castelletto, I. P. Degiovanni, and M. L. Rastello, “Evaluation of statistical noise in measurements based on correlated photons,” J. Opt. Soc. Am. B 19(6), 1247–1258 (2002).

[CrossRef]

G. Brida, S. Castelletto, I. P. Degiovanni, C. Novero, and M. L. Rastello, “Quantum efficiency and dead time of single-photon counting photodiodes: a comparison between two measurement techniques,” Metrologia 37(5), 625–628 (2000).

[CrossRef]

E. Theocharous, M. A. Itzler, J. Y. Cheung, and C. J. Chunnilall, “The characterisation of the linearity of response and spatial uniformity of response of two InGaAs/InP Geiger-mode avalanche photodiodes,” IEEE J. Quantum Electron. 46(11), 1561–1567 (2010).

[CrossRef]

E. Theocharous, “Absolute linearity characterization of lock-in amplifiers,” Appl. Opt. 47(8), 1090–1096 (2008).

[CrossRef]
[PubMed]

W. S. Hartree, E. Theocharous, and N. P. Fox, “A wavelength tunable, quasi-cw laser source for high accuracy spectrometric measurement in the 200 nm to 500 nm region,” Proc. SPIE 4826, 104–112 (2003).

[CrossRef]

J. Y. Cheung, C. J. Chunnilall, E. R. Woolliams, N. P. Fox, J. R. Mountford, J. Wang, and P. J. Thomas, “The quantum candela: a re-definition of the standard units for optical radiation,” J. Mod. Opt. 54(2-3), 373–396 (2007).

[CrossRef]

S. D. Biller, N. A. Jelley, N. M. D. Thorman, N. P. Fox, and T. H. Ward, “Measurements of photomultiplier single photon counting efficiency for the Sudbury Neutrino Observatory,” Nucl. Instrum. Methods Phys Res. A 432(2-3), 364–373 (1999).

[CrossRef]

J. C. Zwinkels, E. Ikonen, N. P. Fox, G. Ulm, and M. L. Rastello, “Photometry, radiometry and 'the candela': evolution in the classical and quantum world,” Metrologia 47(5), R15–R32 (2010).

[CrossRef]

E. Usadi and L. Crane, “Laser-based spectrophotometry at NPL,” Proc. SPIE 5192, 36–45 (2003).

[CrossRef]

J. Y. Cheung, M. P. Vaughan, J. R. M. Mountford, and C. J. Chunnilall, “Correlated photon metrology of detectors and sources,” Proc. SPIE 5161, 365–376 (2004).

[CrossRef]

J. Y. Cheung, C. J. Chunnilall, E. R. Woolliams, N. P. Fox, J. R. Mountford, J. Wang, and P. J. Thomas, “The quantum candela: a re-definition of the standard units for optical radiation,” J. Mod. Opt. 54(2-3), 373–396 (2007).

[CrossRef]

J. Y. Cheung, C. J. Chunnilall, and J. Wang, “Radiometric applications of correlated photon metrology,” Proc. SPIE 5551, 220–230 (2004).

[CrossRef]

S. D. Biller, N. A. Jelley, N. M. D. Thorman, N. P. Fox, and T. H. Ward, “Measurements of photomultiplier single photon counting efficiency for the Sudbury Neutrino Observatory,” Nucl. Instrum. Methods Phys Res. A 432(2-3), 364–373 (1999).

[CrossRef]

J. Y. Cheung, J. L. Gardner, A. Migdall, S. Polyakov, and M. Ware, “High accuracy dual lens transmittance measurements,” Appl. Opt. 46(22), 5396–5403 (2007).

[CrossRef]
[PubMed]

M. Ware and A. L. Migdall, “Single photon detector characterization using correlated photons: the march from feasibility to metrology,” J. Mod. Opt. 51, 1549–1557 (2004).

J. E. Midwinter and J. Warner, “The effects of phase matching method and of uniaxial crystal symmetry on the polar distribution of second-order non-linear optical polarization,” Br. J. Appl. Phys. 16(8), 1135–1142 (1965).

[CrossRef]

D. C. Burnham and D. L. Weinberg, “Observation of simultaneity in parametric production of optical photon pairs,” Phys. Rev. Lett. 25(2), 84–87 (1970).

[CrossRef]

A. R. Beaumont, J. Y. Cheung, C. J. Chunnilall, J. Ireland, and M. G. White, “Providing reference standards and metrology for the few photon - photon counting community,” Nucl. Instrum. Methods Phys. Res. A 610(1), 183–187 (2009).

[CrossRef]

J. Y. Cheung, C. J. Chunnilall, E. R. Woolliams, N. P. Fox, J. R. Mountford, J. Wang, and P. J. Thomas, “The quantum candela: a re-definition of the standard units for optical radiation,” J. Mod. Opt. 54(2-3), 373–396 (2007).

[CrossRef]

J. C. Zwinkels, E. Ikonen, N. P. Fox, G. Ulm, and M. L. Rastello, “Photometry, radiometry and 'the candela': evolution in the classical and quantum world,” Metrologia 47(5), R15–R32 (2010).

[CrossRef]

E. F. Zalewski and C. R. Duda, “Silicon photodiode device with 100% external quantum efficiency,” Appl. Opt. 22(18), 2867–2873 (1983).

[CrossRef]
[PubMed]

J. R. Mountford, G. Porrovecchio, M. Smid, and R. Smid, “Development of a switched integrator amplifier for high-accuracy optical measurements,” Appl. Opt. 47(31), 5821–5828 (2008).

[CrossRef]
[PubMed]

E. Theocharous, “Absolute linearity characterization of lock-in amplifiers,” Appl. Opt. 47(8), 1090–1096 (2008).

[CrossRef]
[PubMed]

A. N. Penin and A. V. Sergienko, “Absolute standardless calibration of photodetectors based on quantum two-photon fields,” Appl. Opt. 30(25), 3582–3588 (1991).

[CrossRef]
[PubMed]

J. Y. Cheung, J. L. Gardner, A. Migdall, S. Polyakov, and M. Ware, “High accuracy dual lens transmittance measurements,” Appl. Opt. 46(22), 5396–5403 (2007).

[CrossRef]
[PubMed]

J. E. Midwinter and J. Warner, “The effects of phase matching method and of uniaxial crystal symmetry on the polar distribution of second-order non-linear optical polarization,” Br. J. Appl. Phys. 16(8), 1135–1142 (1965).

[CrossRef]

G. Brida, M. Genovese, and C. Novero, “On the measurement of photon flux in parametric down-conversion,” Eur. Phys. J. D 8(2), 273–275 (2000).

[CrossRef]

E. Theocharous, M. A. Itzler, J. Y. Cheung, and C. J. Chunnilall, “The characterisation of the linearity of response and spatial uniformity of response of two InGaAs/InP Geiger-mode avalanche photodiodes,” IEEE J. Quantum Electron. 46(11), 1561–1567 (2010).

[CrossRef]

J. Y. Cheung, C. J. Chunnilall, E. R. Woolliams, N. P. Fox, J. R. Mountford, J. Wang, and P. J. Thomas, “The quantum candela: a re-definition of the standard units for optical radiation,” J. Mod. Opt. 54(2-3), 373–396 (2007).

[CrossRef]

S. V. Polyakov and A. Migdall, “Quantum radiometry,” J. Mod. Opt. 56(9), 1045–1052 (2009).

[CrossRef]

M. Ware and A. L. Migdall, “Single photon detector characterization using correlated photons: the march from feasibility to metrology,” J. Mod. Opt. 51, 1549–1557 (2004).

G. P. Eppeldauer and D. C. Lynch, “Opto-mechanical and electronic design of a tunnel-trap Si radiometer,” J. Res. Natl. Inst. Stand. Technol. 105, 813–818 (2000).

J. C. Zwinkels, E. Ikonen, N. P. Fox, G. Ulm, and M. L. Rastello, “Photometry, radiometry and 'the candela': evolution in the classical and quantum world,” Metrologia 47(5), R15–R32 (2010).

[CrossRef]

G. Brida, S. Castelletto, I. P. Degiovanni, C. Novero, and M. L. Rastello, “Quantum efficiency and dead time of single-photon counting photodiodes: a comparison between two measurement techniques,” Metrologia 37(5), 625–628 (2000).

[CrossRef]

N. P. Fox, “Trap detectors and their properties,” Metrologia 28(3), 197–202 (1991).

[CrossRef]

J. E. Martin, N. P. Fox, and P. J. Key, “A cryogenic radiometer for absolute radiometric measurements,” Metrologia 21(3), 147–155 (1985).

[CrossRef]

S. D. Biller, N. A. Jelley, N. M. D. Thorman, N. P. Fox, and T. H. Ward, “Measurements of photomultiplier single photon counting efficiency for the Sudbury Neutrino Observatory,” Nucl. Instrum. Methods Phys Res. A 432(2-3), 364–373 (1999).

[CrossRef]

A. R. Beaumont, J. Y. Cheung, C. J. Chunnilall, J. Ireland, and M. G. White, “Providing reference standards and metrology for the few photon - photon counting community,” Nucl. Instrum. Methods Phys. Res. A 610(1), 183–187 (2009).

[CrossRef]

D. C. Burnham and D. L. Weinberg, “Observation of simultaneity in parametric production of optical photon pairs,” Phys. Rev. Lett. 25(2), 84–87 (1970).

[CrossRef]

W. S. Hartree, E. Theocharous, and N. P. Fox, “A wavelength tunable, quasi-cw laser source for high accuracy spectrometric measurement in the 200 nm to 500 nm region,” Proc. SPIE 4826, 104–112 (2003).

[CrossRef]

E. Usadi and L. Crane, “Laser-based spectrophotometry at NPL,” Proc. SPIE 5192, 36–45 (2003).

[CrossRef]

J. Y. Cheung, C. J. Chunnilall, and J. Wang, “Radiometric applications of correlated photon metrology,” Proc. SPIE 5551, 220–230 (2004).

[CrossRef]

J. Y. Cheung, M. P. Vaughan, J. R. M. Mountford, and C. J. Chunnilall, “Correlated photon metrology of detectors and sources,” Proc. SPIE 5161, 365–376 (2004).

[CrossRef]

D. N. Klyshko, “Utilization of vacuum fluctuations as an optical brightness standard,” Sov. J. Quantum Electron. 7(5), 591–595 (1977).

[CrossRef]

J. Peck, L. L. C. Impeccable Instruments, and T. N. Knoxville, USA (Private Communication) 2004).

Appolonius, Conics (c. 200 B.C.).

G. Porrovechio, M. Smid, and J. Y. Cheung, “Monochromator-based technique for measuring the focal length of lenses at different wavelengths,” (In preparation).

G. H. Rieke, Detection of light: from the ultraviolet to the submillimeter (Cambridge University Press, 1994).

E. Theocharous, “How Linear is Your Photodetector?” in Europhotonics tech briefs(2007), pp. 33–35.

N. P. Fox and J. P. Rice, “Absolute radiometers,” in Experimental methods in the physical sciences, A. C. Parr, R. U. Datla, and J. L. Gardner, eds. (Elsevier Academic Press, 2005), pp. 35–96.

www.quantumcandela.org .

G. Porrovechio, M. Smid, J. R. Mountford, J. Y. Cheung, C. J. Chunnilall, and M. G. White, “Sub picowatt absolute light radiation measurement technique with a trap detector and switched integrator amplifier,” (In preparation).