Two‐dimensional operation of a scanning optical microscope using a vibrating knife‐edge corner

Korpel, A.; Samson, Scott; Feldbush, Kurt

doi:10.1002/ima.1850040307

Cited by 5 publications

(7 citation statements)

References 1 publication

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“…According to eq. ( 13), the spectrum should consist of the squared Fourier transform of the aperture (sinc 2 , where sinc(x) = sin(πx)/πx), convolved with delta functions at k x = 0 and ±2π/Λ. Figure 3 depicts this plane wave spectrum.…”

Section: A Effect Of Knife Edge Position On Plane Wave Spectra Of Gratingsmentioning

confidence: 99%

“…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%

“…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%

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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: A Effect Of Knife Edge Position On Plane Wave Spectra Of Gratingsmentioning

confidence: 99%

Section: B Retrieval Of Object Transmittancementioning

confidence: 99%

See 1 more Smart Citation

Conversion of evanescent waves into propagating waves by vibrating knife edge

Samson

Korpel

Snyder

1996

Int. J. Imaging Syst. Technol.

Self Cite

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“…The transmitted, modulated light from the vicinity of the knife edge constitutes the useful signal, as it carries local information about the object. This information is extracted through photodetection and bandpass filtering and used to form a picture of the object.In [ 2] it is shown that resolution of the device is on the order of the amplitude of vibration of the knife edge. An extension of the method to two dimensions involving tomography is discussed in [4].…”

Section: Introductionmentioning

confidence: 99%

Coherent and incoherent operation in optical vibration microscopy

Korpel

Snyder

1997

Appl. Opt.

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We present an experimental and theoretical analysis of vibration microscopy using an arbitrarily defined detection aperture. For the two limiting cases, incoherent operation (no aperture) offers intensity-gradient information in the amplitude of higher harmonics of the vibration frequency, whereas coherent operation (pinhole aperture) reflects the phase of the object being scanned in the amplitude of the first harmonic. The possibilities of phase microscopy, when the system is used in a coherent mode of operation, are discussed.

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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

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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 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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Two‐dimensional operation of a scanning optical microscope using a vibrating knife‐edge corner

Abstract: We analyze and demonstrate a scanning optical microscope that uses a vibrating knife-edge corner to provide arbitrary, electronically variable resolution. Implications for general near-field microscopy are discussed.

Cited by 5 publications

References 1 publication

Conversion of evanescent waves into propagating waves by vibrating knife edge

Conversion of evanescent waves into propagating waves by vibrating knife edge

Coherent and incoherent operation in optical vibration microscopy

Conversion of evanescent waves into propagating waves by vibrating knife edge

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