Circular birefringence/dichroism measurement of optical scattering samples using amplitude-modulation polarimetry

Wei Chun Liu, Yu-Lung Lo, Quoc Hung Phan

Research output: Contribution to journalArticle

Abstract

A method is proposed for extracting the circular birefringence (CB), circular dichroism (CD) and depolarization (Dep) properties of optical scattering samples using an amplitude-modulation polarimetry technique. The validity of the proposed method is demonstrated by extracting the CB property of pure glucose aqueous samples, the CB/Dep properties of glucose solutions containing 0.02% lipofundin particles, and the CD/Dep properties of chlorophyllin solutions containing suspended polystyrene microspheres. The results show that the proposed technique has the ability to detect pure glucose with a resolution of 66 mg/dL over a concentration range of 0–500 mg/dL. Moreover, the glucose concentration of the CB/Dep samples can be detected over the same range with a resolution of 168 mg/dL. Finally, the chlorophyllin concentration of the CD/Dep sample can be detected over the range of 0–200 μg/dL with a resolution of 6.5 × 10−5. In general, the results show that the proposed technique provides a reliable and accurate means of measuring the CB/CD properties of optical samples with scattering effects, and thus has significant potential for biological sensing applications.

Original languageEnglish
Pages (from-to)45-51
Number of pages7
JournalOptics and Lasers in Engineering
Volume102
DOIs
Publication statusPublished - 2018 Mar 1

Fingerprint

Polarimeters
Amplitude modulation
Depolarization
polarimetry
Dichroism
Birefringence
depolarization
dichroism
birefringence
glucose
Glucose
Scattering
scattering
Polystyrenes
Microspheres
polystyrene

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

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abstract = "A method is proposed for extracting the circular birefringence (CB), circular dichroism (CD) and depolarization (Dep) properties of optical scattering samples using an amplitude-modulation polarimetry technique. The validity of the proposed method is demonstrated by extracting the CB property of pure glucose aqueous samples, the CB/Dep properties of glucose solutions containing 0.02{\%} lipofundin particles, and the CD/Dep properties of chlorophyllin solutions containing suspended polystyrene microspheres. The results show that the proposed technique has the ability to detect pure glucose with a resolution of 66 mg/dL over a concentration range of 0–500 mg/dL. Moreover, the glucose concentration of the CB/Dep samples can be detected over the same range with a resolution of 168 mg/dL. Finally, the chlorophyllin concentration of the CD/Dep sample can be detected over the range of 0–200 μg/dL with a resolution of 6.5 × 10−5. In general, the results show that the proposed technique provides a reliable and accurate means of measuring the CB/CD properties of optical samples with scattering effects, and thus has significant potential for biological sensing applications.",
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Circular birefringence/dichroism measurement of optical scattering samples using amplitude-modulation polarimetry. / Liu, Wei Chun; Lo, Yu-Lung; Phan, Quoc Hung.

In: Optics and Lasers in Engineering, Vol. 102, 01.03.2018, p. 45-51.

Research output: Contribution to journalArticle

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