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Simultaneous spatial and temporal focusing for tissue ablation.

Block E, Greco M, Vitek D, Masihzadeh O, Ammar DA, Kahook MY, Mandava N, Durfee C, Squier J - Biomed Opt Express (2013)

Bottom Line: Simultaneous spatial temporal focusing (SSTF) is used to deliver microjoule femtosecond pulses with low numerical aperture geometries (<0.05 NA) with characteristics that are significantly improved compared to standard focusing paradigms.Nonlinear effects that would normally result in focal plane shifts and focal spot distortion are mitigated when SSTF is employed.As a result, it is shown that SSTF will enable surgical implementations that are presently inhibited.

View Article: PubMed Central - PubMed

Affiliation: Department of Physics, Colorado School of Mines, 1523 Illinois Street, Golden, CO 80401, USA.

ABSTRACT
Simultaneous spatial temporal focusing (SSTF) is used to deliver microjoule femtosecond pulses with low numerical aperture geometries (<0.05 NA) with characteristics that are significantly improved compared to standard focusing paradigms. Nonlinear effects that would normally result in focal plane shifts and focal spot distortion are mitigated when SSTF is employed. As a result, it is shown that SSTF will enable surgical implementations that are presently inhibited.

No MeSH data available.


Related in: MedlinePlus

(a) Intensity profile of a beam focused to a 33 µm spot size (1/e2 beam diameter) using a standard focal geometry. (b) Integrated intensity contours along the axial dimension of the focus without SSTF (black) and with SSTF (red). (c) Intensity profile of a beam with an SSTF focusing geometry also focused to a 33 µm spot size. The beam aspect ratio, , is 11.
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g002: (a) Intensity profile of a beam focused to a 33 µm spot size (1/e2 beam diameter) using a standard focal geometry. (b) Integrated intensity contours along the axial dimension of the focus without SSTF (black) and with SSTF (red). (c) Intensity profile of a beam with an SSTF focusing geometry also focused to a 33 µm spot size. The beam aspect ratio, , is 11.

Mentions: The simultaneous spatial temporal focusing geometry.


Simultaneous spatial and temporal focusing for tissue ablation.

Block E, Greco M, Vitek D, Masihzadeh O, Ammar DA, Kahook MY, Mandava N, Durfee C, Squier J - Biomed Opt Express (2013)

(a) Intensity profile of a beam focused to a 33 µm spot size (1/e2 beam diameter) using a standard focal geometry. (b) Integrated intensity contours along the axial dimension of the focus without SSTF (black) and with SSTF (red). (c) Intensity profile of a beam with an SSTF focusing geometry also focused to a 33 µm spot size. The beam aspect ratio, , is 11.
© Copyright Policy - open-access
Related In: Results  -  Collection

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getmorefigures.php?uid=PMC3675863&req=5

g002: (a) Intensity profile of a beam focused to a 33 µm spot size (1/e2 beam diameter) using a standard focal geometry. (b) Integrated intensity contours along the axial dimension of the focus without SSTF (black) and with SSTF (red). (c) Intensity profile of a beam with an SSTF focusing geometry also focused to a 33 µm spot size. The beam aspect ratio, , is 11.
Mentions: The simultaneous spatial temporal focusing geometry.

Bottom Line: Simultaneous spatial temporal focusing (SSTF) is used to deliver microjoule femtosecond pulses with low numerical aperture geometries (<0.05 NA) with characteristics that are significantly improved compared to standard focusing paradigms.Nonlinear effects that would normally result in focal plane shifts and focal spot distortion are mitigated when SSTF is employed.As a result, it is shown that SSTF will enable surgical implementations that are presently inhibited.

View Article: PubMed Central - PubMed

Affiliation: Department of Physics, Colorado School of Mines, 1523 Illinois Street, Golden, CO 80401, USA.

ABSTRACT
Simultaneous spatial temporal focusing (SSTF) is used to deliver microjoule femtosecond pulses with low numerical aperture geometries (<0.05 NA) with characteristics that are significantly improved compared to standard focusing paradigms. Nonlinear effects that would normally result in focal plane shifts and focal spot distortion are mitigated when SSTF is employed. As a result, it is shown that SSTF will enable surgical implementations that are presently inhibited.

No MeSH data available.


Related in: MedlinePlus