Reinvestigation of electric field-induced optical activity in α-quartz

Application of a polarimeter with four photoelastic modulators

Arnab Sen Gupta, Oriol Arteaga, Ryan Haislmaier, Bart Kahr, Venkatraman Gopalan

Research output: Contribution to journalArticle

Abstract

Linear electrogyration (electric field-induced optical activity) and electro-optic effects in x-cut and z-cut right-handed (RH) α-quartz were measured using a complete Mueller matrix polarimeter. The polarimeter used in the analysis was equipped with four photoelastic modulators operating at different frequencies. This configuration is especially sensitive due to the fidelity of the modulators and the fact that all the Mueller matrix elements can be delivered without any moving optical elements. The linear electrogyration coefficient γ11 as a function of the wavelength of incident light was remeasured. The coefficient γ33, required by symmetry to be zero, was evaluated as a control. γ11 was much smaller than values obtained previously using devices dependent on mechanical light modulation. Electrogyration measurements have often been confounded by the much larger linear electro-optic effect. The Mueller calculus used herein is well suited to the separation of the competing changes to the polarization state of light. Quadratic electrogyration associated with elements β11 and β33 was not detectable. Chirality 26:70-73, 2013.

Original languageEnglish (US)
Pages (from-to)430-433
Number of pages4
JournalChirality
Volume26
Issue number9
DOIs
StatePublished - 2014

Fingerprint

Quartz applications
Optical Rotation
Quartz
Polarimeters
Electrooptical effects
Modulators
Electric fields
Light
Chirality
Light modulation
Optical devices
Calculi
Polarization
Wavelength
Equipment and Supplies

Keywords

  • electro-optics
  • electrogyration
  • gyration
  • Mueller matrix
  • polarimetry
  • quartz

ASJC Scopus subject areas

  • Organic Chemistry
  • Analytical Chemistry
  • Drug Discovery
  • Pharmacology
  • Catalysis
  • Spectroscopy

Cite this

Reinvestigation of electric field-induced optical activity in α-quartz : Application of a polarimeter with four photoelastic modulators. / Gupta, Arnab Sen; Arteaga, Oriol; Haislmaier, Ryan; Kahr, Bart; Gopalan, Venkatraman.

In: Chirality, Vol. 26, No. 9, 2014, p. 430-433.

Research output: Contribution to journalArticle

Gupta, Arnab Sen ; Arteaga, Oriol ; Haislmaier, Ryan ; Kahr, Bart ; Gopalan, Venkatraman. / Reinvestigation of electric field-induced optical activity in α-quartz : Application of a polarimeter with four photoelastic modulators. In: Chirality. 2014 ; Vol. 26, No. 9. pp. 430-433.
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