Analysis of the optimum optical incident angle for an imaging acousto-optic tunable filter

Zhang, Chunguang; Zhang, Zhonghua; Wang, Hao; Yang, Yu

doi:10.1364/oe.15.011883

Cited by 16 publications

(8 citation statements)

References 10 publications

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“…The main design method of a noncollinear AOTF was as followed: by the A-O interaction theory, the selection of the incident polar angle θ i was an important and beginning step for the design. The optimum θ i was connected with many factors (such as, the working wavelength range, the acoustic frequency and the power) [11]. As the optical axis was fixed for certain crystal, the direction of the incident light can be got.…”

Section: Design Of the Teo 2 Based Narrow Band Aotfmentioning

confidence: 99%

The narrow band AOTF based hyperspectral microscopic imaging on the rat skin stratum configuration

Zhang

Wang

Huang

et al. 2014

J. Eur. Opt. Soc.-Rapid Publ.

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A noncollinear acousto-optic tunable filter (AOTF) was designed with a comprehensive treatment of the properties of TeO 2 as an acoustooptic (A-O) material. The results of optical testing validated that it predicted the performance of the designed AOTF. The bandwidth of the AOTF was very narrow in the visible light range. The high spectral resolution of AOTF was useful in practical applications to the hyperspectral imaging. The experimentally observed spectral pattern of the diffracted light was nearly the same as the theoretical result. The measured tuning relationship between the diffracted central optical wavelength and acoustic frequency was in accordance with the theoretical prediction. It demonstrates the accuracy of our design theory. Furthermore, by selecting the AOTF as the spectroscopic element, a hyperspectral microscopic imaging system was designed. The hyperspectral microscopic images of the rat skin tissue under the different optical center wavelength were acquired. The experimental results indicated that the imaging performance was satisfactory. The stratums of the rat skin can be clearly distinguished. The inner details of the epidermis and the corium can be shown on the hyperspectral microscopic images. Some differences also can be found by the comparison of the hyperspectal images under the different optical wavelengths. The study indicated the applicability and the advantage of our system on biomedicine area.

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Section: Design Of the Teo 2 Based Narrow Band Aotfmentioning

confidence: 99%

The narrow band AOTF based hyperspectral microscopic imaging on the rat skin stratum configuration

Zhang

Wang

Huang

et al. 2014

J. Eur. Opt. Soc.-Rapid Publ.

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show abstract

“…The acoustic wave can be generated when a radio frequency signal (rf) is applied to a piezoelectric transducer bonded on the birefringent material, so a change in the applied rf produces a variation in the acoustic wave frequency. Previous studies had confirmed that considering the birefringence of the interaction material and its rotatory property was an effective method of increasing the accuracy of the design obviously [4,5]. The spectral resolution is a key index of evaluating the performance of an AOTF for the actual applications.…”

Section: Introductionmentioning

confidence: 99%

“…The spectral resolution is a key index of evaluating the performance of an AOTF for the actual applications. However, the previous expression of the spectral resolution which had been widely used is inaccurate for the neglect of the rotatory property [4][5][6][7]. Thus, in this letter, we give an exact expression of the spectral resolution in order to keep up the higher demand for the accurate evaluation of the performance of AOTF.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Spectral Resolution of a TeO2 based Noncollinear Acousto-Optic Tunable Filter

Zhang¹,

Wang²,

Qiu³

2011

ENG

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The spectral resolution is a main index of evaluating the performance of the designed acousto-optic tunable filter (AOTF). In this letter, an accurate expression of the spectral resolution is presented by considering both the birefringence and the rotatory property of TeO 2 crystal. The deduced expression is significant in improving the accuracy of the design of an AOTF and pushing the development of the high-performance AOTF.

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“…This is disadvantageous for improving the performance of the TeO 2 AOTF. In our previous studies, an accurate design theory considering the birefringence and the rotatory property of TeO 2 crystal was put forward, and the significant function of our theory in ensuring the design accuracy had been approved theoretically [18][19][20][21][22]. In this letter, using the accurate design theory, we design a narrow band TeO 2 based AOTF in the visible to the near infrared.…”

Section: Introductionmentioning

confidence: 99%

The visible to the near infrared narrow band acousto-optic tunable filter and the hyperspectral microscopic imaging on biomedicine study

Zhang¹,

Wang²,

Huang³

et al. 2014

J. Opt.

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Based on the parallel tangents momentum-matching condition, a narrow band noncollinear acousto-optic tunable filter (AOTF) using a single TeO2 crystal is designed with the consideration of the birefringence and the rotatory property of the material. An effective setup is established to evaluate the performance of the designed AOTF. The experimental observed spectrum pattern of the diffracted light is nearly the same with the theoretical result. The measured tuning relationship between the diffracted central optical wavelength and acoustic frequency is in accordance with the theoretical prospect. The optical bandwidth of the diffracted light is as narrow as 1.88 nm when the central wavelength is 556.75 nm. The high spectral resolution is significant in practical applications of imaging AOTF. Additionally, the AOTF based hyperspectral microscopic imaging system is established. The stability and the image resolution of the designed narrow band AOTF are satisfying. Finally, the study of the biologic samples indicates the feasibility of our system on biomedicine.

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Analysis of the optimum optical incident angle for an imaging acousto-optic tunable filter

Cited by 16 publications

References 10 publications

The narrow band AOTF based hyperspectral microscopic imaging on the rat skin stratum configuration

The narrow band AOTF based hyperspectral microscopic imaging on the rat skin stratum configuration

Analysis of the Spectral Resolution of a TeO2 based Noncollinear Acousto-Optic Tunable Filter

The visible to the near infrared narrow band acousto-optic tunable filter and the hyperspectral microscopic imaging on biomedicine study

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