Abstract

We demonstrate a novel high-resolution portable beam profiler based on a slanted linear array of small apertures, termed a slanted hole array beam profiler (SHArP). The apertures are directly fabricated on a metal-coated CMOS imaging sensor. With a single linear scan, the aperture array can establish a virtual grid of sampling points for beam profiling. With our prototype, we demonstrate beam profiling of Gaussian beams over an area of 66.5μm×66.5μm with a resolution of 0.8μm (compare with the CMOS pixel size of 10μm). The resolution can be improved into the range of submicrometers by fabricating smaller apertures. The good correspondence between the measured and calculated beam profiles proves the fidelity of our new beam profiling scheme.

© 2006 Optical Society of America

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References

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2003

A. Guirao, D. R. Williams, and S. M. MacRae, J. Refract. Surg. 19, 15 (2003).
[PubMed]

2002

1998

S. K. Rhodes, A. Barty, A. Roberts, and K. A. Nugent, Opt. Commun. 145, 9 (1998).
[CrossRef]

1997

W. Plass, R. Maestle, K. Wittig, A. Voss, and A. Giesen, Opt. Commun. 134, 21 (1997).
[CrossRef]

1991

1982

Barty, A.

S. K. Rhodes, A. Barty, A. Roberts, and K. A. Nugent, Opt. Commun. 145, 9 (1998).
[CrossRef]

Baugh, L. R.

X. Heng, D. Erickson, L. R. Baugh, Z. Yaqoob, P. W. Sternberg, D. Psaltis, and C. Yang, Lab Chip10.1039/b604676b (2006).

Erickson, D.

X. Heng, D. Erickson, L. R. Baugh, Z. Yaqoob, P. W. Sternberg, D. Psaltis, and C. Yang, Lab Chip10.1039/b604676b (2006).

Gibson, S. F.

Giesen, A.

W. Plass, R. Maestle, K. Wittig, A. Voss, and A. Giesen, Opt. Commun. 134, 21 (1997).
[CrossRef]

Guirao, A.

A. Guirao, D. R. Williams, and S. M. MacRae, J. Refract. Surg. 19, 15 (2003).
[PubMed]

Heng, X.

X. Heng, D. Erickson, L. R. Baugh, Z. Yaqoob, P. W. Sternberg, D. Psaltis, and C. Yang, Lab Chip10.1039/b604676b (2006).

Lanni, F.

MacRae, S. M.

A. Guirao, D. R. Williams, and S. M. MacRae, J. Refract. Surg. 19, 15 (2003).
[PubMed]

Maestle, R.

W. Plass, R. Maestle, K. Wittig, A. Voss, and A. Giesen, Opt. Commun. 134, 21 (1997).
[CrossRef]

Nugent, K. A.

S. K. Rhodes, K. A. Nugent, and A. Roberts, J. Opt. Soc. Am. A 19, 1689 (2002).
[CrossRef]

S. K. Rhodes, A. Barty, A. Roberts, and K. A. Nugent, Opt. Commun. 145, 9 (1998).
[CrossRef]

Park, S. K.

Plass, W.

W. Plass, R. Maestle, K. Wittig, A. Voss, and A. Giesen, Opt. Commun. 134, 21 (1997).
[CrossRef]

Psaltis, D.

X. Heng, D. Erickson, L. R. Baugh, Z. Yaqoob, P. W. Sternberg, D. Psaltis, and C. Yang, Lab Chip10.1039/b604676b (2006).

Rhodes, S. K.

S. K. Rhodes, K. A. Nugent, and A. Roberts, J. Opt. Soc. Am. A 19, 1689 (2002).
[CrossRef]

S. K. Rhodes, A. Barty, A. Roberts, and K. A. Nugent, Opt. Commun. 145, 9 (1998).
[CrossRef]

Roberts, A.

S. K. Rhodes, K. A. Nugent, and A. Roberts, J. Opt. Soc. Am. A 19, 1689 (2002).
[CrossRef]

S. K. Rhodes, A. Barty, A. Roberts, and K. A. Nugent, Opt. Commun. 145, 9 (1998).
[CrossRef]

Schowengerdt, R. A.

Sternberg, P. W.

X. Heng, D. Erickson, L. R. Baugh, Z. Yaqoob, P. W. Sternberg, D. Psaltis, and C. Yang, Lab Chip10.1039/b604676b (2006).

Voss, A.

W. Plass, R. Maestle, K. Wittig, A. Voss, and A. Giesen, Opt. Commun. 134, 21 (1997).
[CrossRef]

Williams, D. R.

A. Guirao, D. R. Williams, and S. M. MacRae, J. Refract. Surg. 19, 15 (2003).
[PubMed]

Wittig, K.

W. Plass, R. Maestle, K. Wittig, A. Voss, and A. Giesen, Opt. Commun. 134, 21 (1997).
[CrossRef]

Yang, C.

X. Heng, D. Erickson, L. R. Baugh, Z. Yaqoob, P. W. Sternberg, D. Psaltis, and C. Yang, Lab Chip10.1039/b604676b (2006).

Yaqoob, Z.

X. Heng, D. Erickson, L. R. Baugh, Z. Yaqoob, P. W. Sternberg, D. Psaltis, and C. Yang, Lab Chip10.1039/b604676b (2006).

Appl. Opt.

J. Opt. Soc. Am. A

J. Refract. Surg.

A. Guirao, D. R. Williams, and S. M. MacRae, J. Refract. Surg. 19, 15 (2003).
[PubMed]

Opt. Commun.

S. K. Rhodes, A. Barty, A. Roberts, and K. A. Nugent, Opt. Commun. 145, 9 (1998).
[CrossRef]

W. Plass, R. Maestle, K. Wittig, A. Voss, and A. Giesen, Opt. Commun. 134, 21 (1997).
[CrossRef]

Other

X. Heng, D. Erickson, L. R. Baugh, Z. Yaqoob, P. W. Sternberg, D. Psaltis, and C. Yang, Lab Chip10.1039/b604676b (2006).

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Figures (3)

Fig. 1
Fig. 1

(a) Principle of the SHArP. (b) Top view and image reconstruction of the SHArP. (c) PSF of the SHArP prototype measured by a near-field scanning optical microscope.

Fig. 2
Fig. 2

Focal beam profile of the Gaussian beam (a) measured by the SHArP, (b) imaged by the CMOS imaging sensor. Focal beam profile of the Gaussian beam confined by an iris diaphragm in width (c) measured by SHArP, (d) imaged by the CMOS imaging sensor. The cross section of the focal beam profile of the Gaussian beam (e) in the X direction and (f) in the Y direction (measured, circles; calculated, solid curve).

Fig. 3
Fig. 3

Focal diffraction pattern of the Gaussian beam confined by an iris diaphragm in width (a) measured by the SHArP, (b) calculated (zeroth order has been truncated).

Equations (1)

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t delay = Δ X v = L cos θ v ,

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