Optical aberrations and modulation transfer function of a thermal lens for use in imaging

Dobek, Krzysztof

doi:10.1364/ao.414274

Cited by 4 publications

(5 citation statements)

References 28 publications

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“…The contrast of the object is generally fixed and it does not change with the spatial frequency of the object, however, the decline of image contrast Mim and object contrast Mob depends on the diffraction and aberration of the optical system. For the same optical system, it changes with the spatial frequency [9][10] .…”

Section: ( )mentioning

confidence: 99%

Experimental Study on Optical Transfer Function through MATLAB Software Simulation

li¹,

Zhang²,

zhang³

et al. 2023

Preprint

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The optical transfer function (OTF) can transfer spectra of different frequencies. In the process of transmission, the frequency will not change, but the amplitude will decrease and the phase will shift. Therefore, the OTF is widely used in the evaluation of system imaging quality. In this paper, the intensity distribution, the coherent transfer function, the optical transfer function and the cut-off frequency of the image are obtained by using the back of the "5-yuan‘he’coin" as the object of MATLAB simulation. Finally, the experimental results are consistent with the theoretical analysis, which proves the accuracy of the MATLAB simulation measurement method. At the same time, the relevant theoretical analysis also provides an important theoretical basis for optimizing the system parameters and improving the correlation calculation of OTF. The experimental study of OTF has great potential applications in military and aerospace fields.

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Section: ( )mentioning

confidence: 99%

Experimental Study on Optical Transfer Function through MATLAB Software Simulation

li¹,

Zhang²,

zhang³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Thus, according to the criteria specified by Bogutarov et al [142] and Hucharov [143], methanol revealed "developed" convection, while for long alkyl chain n-alcohols, the convection was moderate. Recently, Dobek [149] studied the effect of the vertical HL illumination from the top/from the bottom of a TO sample on the optical aberrations of the TL formed. He used a sample of very high absorption and a size similar to the HL beam diameter, as expected from a TL applied in imaging, where high TL optical power is needed, the TO sample should be relatively small and most importantly, the HL beam size must be larger than that of the probe/ signal/imaged light to circumvent the spherical aberrations always present in a TL formed by a Gaussian HL.…”

Section: The Effects Determining Thermal Lensing and The Correctness Of Its Theoretical Descriptionmentioning

confidence: 99%

Thermal lensing: outside of the lasing medium

Dobek

2022

Appl. Phys. B

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The thermal lens formed in a thermo-optical material as a result of its inhomogeneous heating, is a well-known phenomenon that has found widespread interest in the last decades, especially in the field of laser engineering and photo-thermal spectroscopy. In recent years, growing interest in the application of thermal lensing in different fields of optics and material studies has been observed. This review summarizes the latest efforts made by the scientific community to develop ways of using the phenomenon of thermal lensing. Its applications in spectroscopy, in laser beam formation and in imaging are described. The advantages and disadvantages of the thermal lensing in regard to these areas along with the potential future applications of the phenomenon are discussed.

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“…The contrast of the object is generally fixed, and it does not change with the spatial frequency of the object, however, the decline of image contrast M im and object contrast Mob depends on the diffraction and aberration of the optical system. For the same optical system, it changes with the spatial frequency [9,10]. MTF is a function of spatial frequency, it reflects the ability that optical system transmits light intensity modulation of various frequencies.…”

Section: Theoretical Analysismentioning

confidence: 99%

"The Experimental Study on Optical Transfer Function under Coherent Light Based on MATLAB Simulation"

Li¹

2022

BJSTR

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Rong Duan and XiTeng Liu. The Experimental Study on Optical Transfer Function under Coherent Light Based on MATLAB Simulation. Biomed J Sci & Tech Res 45(5)-2022. BJSTR. MS.ID.007257. The Optical Transfer Function (OTF) can transfer spectra of different frequencies.In the process of transmission, the frequency will not change, but the amplitude will decrease, and the phase will shift. Therefore, the OTF is widely used in the evaluation of system imaging quality. In this paper, the intensity distribution, the coherent transfer function, the optical transfer function and the cut-off frequency of the image are obtained by using the back of the "5-yuan'he'coin" as the object of MATLAB simulation. Finally, the experimental results are consistent with the theoretical analysis, which proves the accuracy of the MATLAB simulation measurement method. At the same time, the relevant theoretical analysis also provides an important theoretical basis for optimizing the system parameters and improving the correlation calculation of OTF. The experimental study of OTF has great potential applications in military and aerospace fields.

show abstract

Optical aberrations and modulation transfer function of a thermal lens for use in imaging

Cited by 4 publications

References 28 publications

Experimental Study on Optical Transfer Function through MATLAB Software Simulation

Experimental Study on Optical Transfer Function through MATLAB Software Simulation

Thermal lensing: outside of the lasing medium

"The Experimental Study on Optical Transfer Function under Coherent Light Based on MATLAB Simulation"

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