Beam profiling by vibrating knife edge: Implications for near‐field optical scanning microscopy

Korpel, A.; Mehrl, David J.; Samson, Scott

doi:10.1002/ima.1850020306

Cited by 8 publications

(5 citation statements)

References 35 publications

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“…In previous papers [1,2] it was reasoned that for small displacements of the knife edge, the reduction in transmitted light power should be linearly proportional to the knife edge movement.…”

Section: B Retrieval Of Object Transmittancementioning

confidence: 99%

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Conversion of evanescent waves into propagating waves by vibrating knife edge

Samson

Korpel

Snyder

1996

Int. J. Imaging Syst. Technol.

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Using plane wave spectrum methods, we analyze the propagation and mutual conversion of plane and evanescent waves generated by a one-dimensional object partially obscured by a vibrating knife-edge. We show that sub-wavelength details of the object may be detected in each part of the transmitted plane wave spectrum, upon scanning the knife edge across the object. We discuss the implications for near-field scanning optical microscopy (NSOM) and compare some aspects of conventional NSOM (physical aperture), and vibrating knife edge (electronic aperture) approaches to the sampling of optical fields.

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Section: B Retrieval Of Object Transmittancementioning

confidence: 99%

“…In previous papers [1][2][3][4] we have discussed the one-and two-dimensional operation of an optical microscope that uses a vibrating knife edge. In these papers, the analysis is simplified by assuming that all light power passing both the specimen and an opaque knife edge is detectable.…”

Section: Introductionmentioning

confidence: 99%

Conversion of evanescent waves into propagating waves by vibrating knife edge

Samson

Korpel

Snyder

1996

Int. J. Imaging Syst. Technol.

Self Cite

View full text Add to dashboard Cite

show abstract

Section: B Retrieval Of Object Transmittancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Conversion of evanescent waves into propagating waves by vibrating knife edge

Samson¹,

Korpel²,

Snyder³

1996

Int. J. Imaging Syst. Technol.

Self Cite

View full text Add to dashboard Cite

Using plane wave spectrum methods, we analyze the propagation and mutual conversion of plane and evanescent waves generated by a one-dimensional object partially obscured by a vibrating knife edge. We show that subwavelength details of the object may be detected in each part of the transmitted plane wave spectrum, upon scanning the knife edge across the object. We discuss the implications for nearfield scanning optical microscopy (NSOM) and compare some aspects of conventional NSOM (physical aperture), and vibrating knife edge (electronic aperture) approaches to the sampling of optical fields.

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“…The latter deviates periodically from its nominal position x , , y , in such a way that its instantaneous position is given by x , = x, + w 1 cos(w,t) x , = y , + w 2 cos(w,t) . (1) (2)…”

Section: Introductionmentioning

confidence: 99%