Polarization, Ghost, and Shading Effects in Dichroic Beam Splitters*

Levine, Daniel; Monser, George J.

doi:10.1364/josa.51.000783

Cited by 5 publications

(4 citation statements)

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“…The large number of layers in the final product induces material stress problems and consequently an instability in the device functioning. One second challenge is the control of the amplitude and the polarization around the edge at the large incident angle of the cube geometry [12]. The increase of the blue shift of the BS' working spectral range with the angle has to be taken into account.…”

Section: Introductionmentioning

confidence: 99%

Design and elaboration of various multilayer beam splitters

Stoyanova

Levicharov

Antonova

et al. 2023

J. Phys.: Conf. Ser.

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Three types of beam splitters: neutral, dichroic and polarizing are designed and elaborated on the base of multilayer interference coatings. The MacNeille’s cube geometry is applied. The software „TFCalc-3.5“ is used for matching the calculated with the measured spectra thus obtaining the optical constants of the vacuum deposited materials and the layer thickness. The technological parameters of the laboratory samples are established as a protocol for their manufacture.

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Section: Introductionmentioning

confidence: 99%

Design and elaboration of various multilayer beam splitters

Stoyanova

Levicharov

Antonova

et al. 2023

J. Phys.: Conf. Ser.

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“…If the DM is not used properly, unexpected aberrations may occur. Levine et al [14] investigated the ghost in the camera‐indicator assembly for recording a cathode‐ray tube (CRT) display which is often bent by means of dichroic mirrors. Because CRT emits light through stimulated radiation by bombarding phosphor with high‐speed electrons, the generation of ghosts are polarization dependent.…”

Section: Introductionmentioning

confidence: 99%

Dependence of ghost on the incident light angle into dichroic mirror

Wang,

Hu,

Sun

et al. 2023

Journal of Biophotonics

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The dichroic mirror (DM) is a key component in microscope. We found ghost in the reflection channel of a dual‐channel fluorescence microscope, and studied the relationship between the ghost and the incidence angle 𝜃 into the DM. The DM emission surface reflection generated ghost if the 𝜃 is not 45◦. We analyzed the distance and intensity relationship between the ghost and the primary image, which is 𝜃‐dependent and was demonstrated by imaging live cells and stage micrometer. The ghost can be eliminated by placing the DM between objective and tube lens, but not between tube lens and detector, ensuring that the incident light into the DM is approximately parallel. Furthermore, the transmitted light of the DM is shifted towards longer wavelength with increasing 𝜃. Collectively, microscopists must carefully optimize the 𝜃 when designing a microscope to avoid the ghost.This article is protected by copyright. All rights reserved.

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“…It can be performed using either a beam splitter [1][2][3][4] or a dichroic mirror. [5][6][7] While the first one allows for spreading the light with a given proportion and in a wide wavelength range, the latter exposes wavelength dependent reflection characteristics. A triple-beam CCD camera, inveted by V.S.…”

Section: Introductionmentioning

confidence: 99%

A simple multipurpose double-beam optical image analyzer

Błachowicz

2016

Review of Scientific Instruments

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In the paper we present a low cost optical device which splits the light in the focal plane into two separate optical paths and collimates it back into a single image plane, and where a selective information processing ca be carried out. The optical system is straightforward and easy implementable as it consists of only three lens and two mirrors. The system is dedicated for imaging in low-light-level conditions in which widely used optical devices, based on beam-splitters or dichroic mirrors, suffer from light loss. We expose examples of applications of our device, using a prototype model. The proposed optical system may be employed for: monitoring the objects located in different distances from observer (1), creating regions of different magnification within a single image plane (2), high dynamic range photometry (3), or imaging in two wavelength bands simultaneously (4). a)

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Polarization, Ghost, and Shading Effects in Dichroic Beam Splitters*

Cited by 5 publications

References 0 publications

Design and elaboration of various multilayer beam splitters

Design and elaboration of various multilayer beam splitters

Dependence of ghost on the incident light angle into dichroic mirror

A simple multipurpose double-beam optical image analyzer

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