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Two-color multiphoton .

Light, science & applications

Perillo EP, Jarrett JW, Liu YL, Hassan A, Fernée DC, Goldak JR, Bonteanu A, Spence DJ, Yeh HC, Dunn AK.
PMID: 29576887
Light Sci Appl. 2017;6. doi: 10.1038/lsa.2017.95. Epub 2017 Nov 17.

Two-color multiphoton microscopy through wavelength mixing of synchronized lasers has been shown to increase the spectral window of excitable fluorophores without the need for wavelength tuning. However, most currently available dual output laser sources rely on the costly and...

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Perillo EP, Jarrett JW, Liu YL, et al. Two-color multiphoton . Light Sci Appl. 2017;6doi: 10.1038/lsa.2017.95.
Perillo, E. P., Jarrett, J. W., Liu, Y. L., Hassan, A., Fernée, D. C., Goldak, J. R., Bonteanu, A., Spence, D. J., Yeh, H. C., & Dunn, A. K. (2017). Two-color multiphoton . Light, science & applications, 6. https://doi.org/10.1038/lsa.2017.95
Perillo, Evan P, et al. "Two-color multiphoton ." Light, science & applications vol. 6 (2017). doi: https://doi.org/10.1038/lsa.2017.95
Perillo EP, Jarrett JW, Liu YL, Hassan A, Fernée DC, Goldak JR, Bonteanu A, Spence DJ, Yeh HC, Dunn AK. Two-color multiphoton . Light Sci Appl. 2017;6. doi: 10.1038/lsa.2017.95. Epub 2017 Nov 17. PMID: 29576887; PMCID: PMC5863928.
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Compact integrated actively Q-switched waveguide laser.

Optics express

Wieschendorf C, Firth J, Silvestri L, Gross S, Ladouceur F, Withford MJ, Spence DJ, Fuerbach A.
PMID: 29519023
Opt Express. 2017 Feb 06;25(3):1692-1701. doi: 10.1364/OE.25.001692.

A miniaturized deformed helix ferroelectric liquid crystal transducer cell was used in combination with a femtosecond laser inscribed active waveguide to realize a compact actively Q-switched laser source. The liquid crystal cell was controlled by a low-voltage frequency generator...

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Wieschendorf C, Firth J, Silvestri L, et al. Compact integrated actively Q-switched waveguide laser. Opt Express. 2017;25(3):1692-1701doi: 10.1364/OE.25.001692.
Wieschendorf, C., Firth, J., Silvestri, L., Gross, S., Ladouceur, F., Withford, M. J., Spence, D. J., & Fuerbach, A. (2017). Compact integrated actively Q-switched waveguide laser. Optics express, 25(3), 1692-1701. https://doi.org/10.1364/OE.25.001692
Wieschendorf, Christoph, et al. "Compact integrated actively Q-switched waveguide laser." Optics express vol. 25,3 (2017): 1692-1701. doi: https://doi.org/10.1364/OE.25.001692
Wieschendorf C, Firth J, Silvestri L, Gross S, Ladouceur F, Withford MJ, Spence DJ, Fuerbach A. Compact integrated actively Q-switched waveguide laser. Opt Express. 2017 Feb 06;25(3):1692-1701. doi: 10.1364/OE.25.001692. PMID: 29519023.
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Pulsed quantum cascade laser based hypertemporal real-time headspace measurements.

Optics express

Boyson TK, Rittman DR, Spence TG, Calzada ME, Kallapur AG, Petersen IR, Paul Kirkbride K, Moore DS, Harb CC.
PMID: 24921754
Opt Express. 2014 May 05;22(9):10519-34. doi: 10.1364/OE.22.010519.

Optical cavity enhancement is a highly desirable process to make sensitive direct-absorption spectroscopic measurements of unknown substances, such as explosives, illicit material, or other species of interest. This paper reports advancements in the development of real-time cavity ringdown spectroscopy...

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Boyson TK, Rittman DR, Spence TG, et al. Pulsed quantum cascade laser based hypertemporal real-time headspace measurements. Opt Express. 2014;22(9):10519-34doi: 10.1364/OE.22.010519.
Boyson, T. K., Rittman, D. R., Spence, T. G., Calzada, M. E., Kallapur, A. G., Petersen, I. R., Paul Kirkbride, K., Moore, D. S., & Harb, C. C. (2014). Pulsed quantum cascade laser based hypertemporal real-time headspace measurements. Optics express, 22(9), 10519-34. https://doi.org/10.1364/OE.22.010519
Boyson, Toby K, et al. "Pulsed quantum cascade laser based hypertemporal real-time headspace measurements." Optics express vol. 22,9 (2014): 10519-34. doi: https://doi.org/10.1364/OE.22.010519
Boyson TK, Rittman DR, Spence TG, Calzada ME, Kallapur AG, Petersen IR, Paul Kirkbride K, Moore DS, Harb CC. Pulsed quantum cascade laser based hypertemporal real-time headspace measurements. Opt Express. 2014 May 05;22(9):10519-34. doi: 10.1364/OE.22.010519. PMID: 24921754.
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Stimulated polariton scattering in an intracavity RbTiOPO4 crystal generating frequency-tunable THz output.

Optics express

Ortega TA, Pask HM, Spence DJ, Lee AJ.
PMID: 27409850
Opt Express. 2016 May 16;24(10):10254-64. doi: 10.1364/OE.24.010254.

A high power, frequency-tunable THz source based on intracavity stimulated polariton scattering (SPS) in RbTiOPO4 (RTP) is demonstrated for the first time. Frequency tunable THz output was obtained from 3.10 to 4.15 THz, with a gap at 3.17 to...

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Ortega TA, Pask HM, Spence DJ, et al. Stimulated polariton scattering in an intracavity RbTiOPO4 crystal generating frequency-tunable THz output. Opt Express. 2016;24(10):10254-64doi: 10.1364/OE.24.010254.
Ortega, T. A., Pask, H. M., Spence, D. J., & Lee, A. J. (2016). Stimulated polariton scattering in an intracavity RbTiOPO4 crystal generating frequency-tunable THz output. Optics express, 24(10), 10254-64. https://doi.org/10.1364/OE.24.010254
Ortega, Tiago A, et al. "Stimulated polariton scattering in an intracavity RbTiOPO4 crystal generating frequency-tunable THz output." Optics express vol. 24,10 (2016): 10254-64. doi: https://doi.org/10.1364/OE.24.010254
Ortega TA, Pask HM, Spence DJ, Lee AJ. Stimulated polariton scattering in an intracavity RbTiOPO4 crystal generating frequency-tunable THz output. Opt Express. 2016 May 16;24(10):10254-64. doi: 10.1364/OE.24.010254. PMID: 27409850.
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Efficient diamond Raman laser generating 65 fs pulses.

Optics express

Murtagh M, Lin J, Mildren RP, McConnell G, Spence DJ.
PMID: 26193530
Opt Express. 2015 Jun 15;23(12):15504-13. doi: 10.1364/OE.23.015504.

We report a synchronously-pumped femtosecond diamond Raman laser operating at 890 nm with a slope efficiency of 32%. Pumped using a mode-locked Ti:Sapphire laser at 796 nm with a pulse duration of 194 fs, the bandwidth of the Stokes...

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Murtagh M, Lin J, Mildren RP, et al. Efficient diamond Raman laser generating 65 fs pulses. Opt Express. 2015;23(12):15504-13doi: 10.1364/OE.23.015504.
Murtagh, M., Lin, J., Mildren, R. P., McConnell, G., & Spence, D. J. (2015). Efficient diamond Raman laser generating 65 fs pulses. Optics express, 23(12), 15504-13. https://doi.org/10.1364/OE.23.015504
Murtagh, Michelle, et al. "Efficient diamond Raman laser generating 65 fs pulses." Optics express vol. 23,12 (2015): 15504-13. doi: https://doi.org/10.1364/OE.23.015504
Murtagh M, Lin J, Mildren RP, McConnell G, Spence DJ. Efficient diamond Raman laser generating 65 fs pulses. Opt Express. 2015 Jun 15;23(12):15504-13. doi: 10.1364/OE.23.015504. PMID: 26193530.
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Simulations of a hydrogen-filled capillary discharge waveguide.

Physical review. E, Statistical, nonlinear, and soft matter physics

Bobrova NA, Esaulov AA, Sakai JI, Sasorov PV, Spence DJ, Butler A, Hooker SM, Bulanov SV.
PMID: 11800790
Phys Rev E Stat Nonlin Soft Matter Phys. 2002 Jan;65(1):016407. doi: 10.1103/PhysRevE.65.016407. Epub 2001 Dec 17.

A one-dimensional dissipative magnetohydrodynamics code is used to investigate the discharge dynamics of a waveguide for high-intensity laser pulses: the gas-filled capillary discharge waveguide. Simulations are performed for the conditions of a recent experimental measurement of the electron density...

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Bobrova NA, Esaulov AA, Sakai JI, et al. Simulations of a hydrogen-filled capillary discharge waveguide. Phys Rev E Stat Nonlin Soft Matter Phys. 2001;65(1):016407doi: 10.1103/PhysRevE.65.016407.
Bobrova, N. A., Esaulov, A. A., Sakai, J. I., Sasorov, P. V., Spence, D. J., Butler, A., Hooker, S. M., & Bulanov, S. V. (2002). Simulations of a hydrogen-filled capillary discharge waveguide. Physical review. E, Statistical, nonlinear, and soft matter physics, 65(1), 016407. https://doi.org/10.1103/PhysRevE.65.016407
Bobrova, N A, et al. "Simulations of a hydrogen-filled capillary discharge waveguide." Physical review. E, Statistical, nonlinear, and soft matter physics vol. 65,1 (2002): 016407. doi: https://doi.org/10.1103/PhysRevE.65.016407
Bobrova NA, Esaulov AA, Sakai JI, Sasorov PV, Spence DJ, Butler A, Hooker SM, Bulanov SV. Simulations of a hydrogen-filled capillary discharge waveguide. Phys Rev E Stat Nonlin Soft Matter Phys. 2002 Jan;65(1):016407. doi: 10.1103/PhysRevE.65.016407. Epub 2001 Dec 17. PMID: 11800790.
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Investigation of a hydrogen plasma waveguide.

Physical review. E, Statistical, nonlinear, and soft matter physics

Spence DJ, Hooker SM.
PMID: 11304307
Phys Rev E Stat Nonlin Soft Matter Phys. 2001 Jan;63(1):015401. doi: 10.1103/PhysRevE.63.015401. Epub 2000 Dec 18.

A hydrogen plasma waveguide for high-intensity laser pulses is described. The guiding channel is formed by a small-scale discharge in a hydrogen-filled capillary. The measured lifetime of the capillary is inferred to be greater than 10(6) shots. The results...

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Spence DJ, Hooker SM. Investigation of a hydrogen plasma waveguide. Phys Rev E Stat Nonlin Soft Matter Phys. 2000;63(1):015401doi: 10.1103/PhysRevE.63.015401.
Spence, D. J., & Hooker, S. M. (2001). Investigation of a hydrogen plasma waveguide. Physical review. E, Statistical, nonlinear, and soft matter physics, 63(1), 015401. https://doi.org/10.1103/PhysRevE.63.015401
Spence, D J, and Hooker, S M. "Investigation of a hydrogen plasma waveguide." Physical review. E, Statistical, nonlinear, and soft matter physics vol. 63,1 (2001): 015401. doi: https://doi.org/10.1103/PhysRevE.63.015401
Spence DJ, Hooker SM. Investigation of a hydrogen plasma waveguide. Phys Rev E Stat Nonlin Soft Matter Phys. 2001 Jan;63(1):015401. doi: 10.1103/PhysRevE.63.015401. Epub 2000 Dec 18. PMID: 11304307.
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Molecular-dynamic calculation of the inverse-bremsstrahlung heating of non-weakly-coupled plasmas.

Physical review. E, Statistical, nonlinear, and soft matter physics

David N, Spence DJ, Hooker SM.
PMID: 15600769
Phys Rev E Stat Nonlin Soft Matter Phys. 2004 Nov;70(5):056411. doi: 10.1103/PhysRevE.70.056411. Epub 2004 Nov 22.

A molecular dynamic (MD) code is used to calculate the inverse bremsstrahlung (IB) heating rates of a plasma as a function of density and laser intensity. The code belongs to the class of particle-particle-particle-mesh codes. Since the equations solved...

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David N, Spence DJ, Hooker SM. Molecular-dynamic calculation of the inverse-bremsstrahlung heating of non-weakly-coupled plasmas. Phys Rev E Stat Nonlin Soft Matter Phys. 2004;70(5):056411doi: 10.1103/PhysRevE.70.056411.
David, N., Spence, D. J., & Hooker, S. M. (2004). Molecular-dynamic calculation of the inverse-bremsstrahlung heating of non-weakly-coupled plasmas. Physical review. E, Statistical, nonlinear, and soft matter physics, 70(5), 056411. https://doi.org/10.1103/PhysRevE.70.056411
David, N, et al. "Molecular-dynamic calculation of the inverse-bremsstrahlung heating of non-weakly-coupled plasmas." Physical review. E, Statistical, nonlinear, and soft matter physics vol. 70,5 (2004): 056411. doi: https://doi.org/10.1103/PhysRevE.70.056411
David N, Spence DJ, Hooker SM. Molecular-dynamic calculation of the inverse-bremsstrahlung heating of non-weakly-coupled plasmas. Phys Rev E Stat Nonlin Soft Matter Phys. 2004 Nov;70(5):056411. doi: 10.1103/PhysRevE.70.056411. Epub 2004 Nov 22. PMID: 15600769.
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Frequency-switched heterodyne cavity ringdown spectroscopy.

Optics letters

Levenson MD, Paldus BA, Spence TG, Harb CC, Zare RN, Lawrence MJ, Byer RL.
PMID: 18064227
Opt Lett. 2000 Jun 15;25(12):920-2. doi: 10.1364/ol.25.000920.

When the frequency of light coupled into a cavity is suddenly shifted, the radiation emanating from the input port of the previously excited cavity can beat with the reflection of the frequency-shifted input on the surface of a photodetector....

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Levenson MD, Paldus BA, Spence TG, et al. Frequency-switched heterodyne cavity ringdown spectroscopy. Opt Lett. 2000;25(12):920-2doi: 10.1364/ol.25.000920.
Levenson, M. D., Paldus, B. A., Spence, T. G., Harb, C. C., Zare, R. N., Lawrence, M. J., & Byer, R. L. (2000). Frequency-switched heterodyne cavity ringdown spectroscopy. Optics letters, 25(12), 920-2. https://doi.org/10.1364/ol.25.000920
Levenson, M D, et al. "Frequency-switched heterodyne cavity ringdown spectroscopy." Optics letters vol. 25,12 (2000): 920-2. doi: https://doi.org/10.1364/ol.25.000920
Levenson MD, Paldus BA, Spence TG, Harb CC, Zare RN, Lawrence MJ, Byer RL. Frequency-switched heterodyne cavity ringdown spectroscopy. Opt Lett. 2000 Jun 15;25(12):920-2. doi: 10.1364/ol.25.000920. PMID: 18064227.
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The effect of ascorbic acid on experimental goitre.

The Biochemical journal

Spence AW, Scowen EF.
PMID: 16745699
Biochem J. 1935 Mar;29(3):562-6. doi: 10.1042/bj0290562.

No abstract available.

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Spence AW, Scowen EF. The effect of ascorbic acid on experimental goitre. Biochem J. 1935;29(3):562-6doi: 10.1042/bj0290562.
Spence, A. W., & Scowen, E. F. (1935). The effect of ascorbic acid on experimental goitre. The Biochemical journal, 29(3), 562-6. https://doi.org/10.1042/bj0290562
Spence, A W, and Scowen, E F. "The effect of ascorbic acid on experimental goitre." The Biochemical journal vol. 29,3 (1935): 562-6. doi: https://doi.org/10.1042/bj0290562
Spence AW, Scowen EF. The effect of ascorbic acid on experimental goitre. Biochem J. 1935 Mar;29(3):562-6. doi: 10.1042/bj0290562. PMID: 16745699; PMCID: PMC1266521.
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Comments on contemporary and alternative medicine (CAM).

Dentistry today

Spence TH.
PMID: 16396156
Dent Today. 2005 Dec;24(12):12.

No abstract available.

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Spence TH. Comments on contemporary and alternative medicine (CAM). Dent Today. 2005;24(12):12
Spence, T. H. (2005). Comments on contemporary and alternative medicine (CAM). Dentistry today, 24(12), 12.
Spence, Ted H. "Comments on contemporary and alternative medicine (CAM)." Dentistry today vol. 24,12 (2005): 12.
Spence TH. Comments on contemporary and alternative medicine (CAM). Dent Today. 2005 Dec;24(12):12. PMID: 16396156.
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Melatonin in mitochondrial dysfunction and related disorders.

International journal of Alzheimer's disease

Srinivasan V, Spence DW, Pandi-Perumal SR, Brown GM, Cardinali DP.
PMID: 21629741
Int J Alzheimers Dis. 2011;2011:326320. doi: 10.4061/2011/326320. Epub 2011 May 04.

Mitochondrial dysfunction is considered one of the major causative factors in the aging process, ischemia/reperfusion (I/R), septic shock, and neurodegenerative disorders like Parkinson's disease (PD), Alzheimer's disease (AD), and Huntington's disease (HD). Increased free radical generation, enhanced mitochondrial inducible...

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Srinivasan V, Spence DW, Pandi-Perumal SR, et al. Melatonin in mitochondrial dysfunction and related disorders. Int J Alzheimers Dis. 2011;2011:326320doi: 10.4061/2011/326320.
Srinivasan, V., Spence, D. W., Pandi-Perumal, S. R., Brown, G. M., & Cardinali, D. P. (2011). Melatonin in mitochondrial dysfunction and related disorders. International journal of Alzheimer's disease, 2011326320. https://doi.org/10.4061/2011/326320
Srinivasan, Venkatramanujam, et al. "Melatonin in mitochondrial dysfunction and related disorders." International journal of Alzheimer's disease vol. 2011 (2011): 326320. doi: https://doi.org/10.4061/2011/326320
Srinivasan V, Spence DW, Pandi-Perumal SR, Brown GM, Cardinali DP. Melatonin in mitochondrial dysfunction and related disorders. Int J Alzheimers Dis. 2011;2011:326320. doi: 10.4061/2011/326320. Epub 2011 May 04. PMID: 21629741; PMCID: PMC3100547.
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Showing 1 to 12 of 224 entries