Evaluation of optical arrangements for ballistic imaging in sprays

Research output: Contribution to journalArticle

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Evaluation of optical arrangements for ballistic imaging in sprays. / Rahm, Mattias; Paciaroni, Megan; Wang, Zhenkan; Sedarsky, David; Linne, Mark.

In: Optics Express, Vol. 23, No. 17, 2015, p. 22444-22462.

Research output: Contribution to journalArticle

Harvard

Rahm, M, Paciaroni, M, Wang, Z, Sedarsky, D & Linne, M 2015, 'Evaluation of optical arrangements for ballistic imaging in sprays', Optics Express, vol. 23, no. 17, pp. 22444-22462. https://doi.org/10.1364/OE.23.022444

APA

Rahm, M., Paciaroni, M., Wang, Z., Sedarsky, D., & Linne, M. (2015). Evaluation of optical arrangements for ballistic imaging in sprays. Optics Express, 23(17), 22444-22462. https://doi.org/10.1364/OE.23.022444

CBE

Rahm M, Paciaroni M, Wang Z, Sedarsky D, Linne M. 2015. Evaluation of optical arrangements for ballistic imaging in sprays. Optics Express. 23(17):22444-22462. https://doi.org/10.1364/OE.23.022444

MLA

Vancouver

Rahm M, Paciaroni M, Wang Z, Sedarsky D, Linne M. Evaluation of optical arrangements for ballistic imaging in sprays. Optics Express. 2015;23(17):22444-22462. https://doi.org/10.1364/OE.23.022444

Author

Rahm, Mattias ; Paciaroni, Megan ; Wang, Zhenkan ; Sedarsky, David ; Linne, Mark. / Evaluation of optical arrangements for ballistic imaging in sprays. In: Optics Express. 2015 ; Vol. 23, No. 17. pp. 22444-22462.

RIS

TY - JOUR

T1 - Evaluation of optical arrangements for ballistic imaging in sprays

AU - Rahm, Mattias

AU - Paciaroni, Megan

AU - Wang, Zhenkan

AU - Sedarsky, David

AU - Linne, Mark

PY - 2015

Y1 - 2015

N2 - This work investigates the imaging performance, in terms of contrast and resolution, of two different time-gated ballistic imaging setups commonly used in spray research. It is shown that the two setups generate similar spatial resolution in the presence of scattering media. The simpler (2f) setup, however, is less sensitive to component misalignments and time-gate induced aberrations than the commonly used (4f) system. Measurements comparing both arrangements indicated slightly higher contrast for the 2f system under the densest conditions for small scatterers. Subsequent computational modeling confirmed the observed tolerance of the 2f system to misalignment and gate effects. The best performing setup was also compared experimentally to its non-time-gated shadow-imaging equivalent, to establish when the time-gate enhances imaging performance. It is shown that the time-gated setup generates higher contrast under almost all of the scattering conditions tested, while the non-time-gated setup generates higher spatial resolution only in the lower scatterer size range at the lowest scatterer concentrations. (C) 2015 Optical Society of America

AB - This work investigates the imaging performance, in terms of contrast and resolution, of two different time-gated ballistic imaging setups commonly used in spray research. It is shown that the two setups generate similar spatial resolution in the presence of scattering media. The simpler (2f) setup, however, is less sensitive to component misalignments and time-gate induced aberrations than the commonly used (4f) system. Measurements comparing both arrangements indicated slightly higher contrast for the 2f system under the densest conditions for small scatterers. Subsequent computational modeling confirmed the observed tolerance of the 2f system to misalignment and gate effects. The best performing setup was also compared experimentally to its non-time-gated shadow-imaging equivalent, to establish when the time-gate enhances imaging performance. It is shown that the time-gated setup generates higher contrast under almost all of the scattering conditions tested, while the non-time-gated setup generates higher spatial resolution only in the lower scatterer size range at the lowest scatterer concentrations. (C) 2015 Optical Society of America

U2 - 10.1364/OE.23.022444

DO - 10.1364/OE.23.022444

M3 - Article

VL - 23

SP - 22444

EP - 22462

JO - Optics Express

T2 - Optics Express

JF - Optics Express

SN - 1094-4087

IS - 17

ER -