Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 68,
  • Issue 11,
  • pp. 1219-1223
  • (2014)

Raman Hyperspectral Imaging Spectrometer Utilizing Crystalline Colloidal Array Photonic Crystal Diffraction

Not Accessible

Your library or personal account may give you access


We fabricated a novel hyperspectral Raman imaging spectrometer that, for the first time, uses a photonic-crystal wavelength-selecting device to select a narrow-wavelength spectral interval. The photonic crystal consists of an array of highly charged, monodisperse polystyrene particles that self-assemble into a face-centered cubic crystal. The photonic crystal Bragg-diffracts a narrow spectral interval that can be tuned by altering the incident angle of collimated Raman scattered light. Our prototype spectrometer diffracts a ∼200 cm−1 interval of the 488 nm excited visible Raman spectrum of Teflon. This enabled us to select a close-lying triplet of Teflon Raman bands. We imaged the Teflon surface by focusing this narrow region onto a charge-coupled device to create a Raman image of the sample surface that spectrally details the chemical composition.

PDF Article
More Like This
X-ray radioluminescent hydrogel stabilized crystalline colloidal arrays

Mary K. Burdette, Haley W. Jones, Yuriy Bandera, and Stephen H. Foulger
Opt. Mater. Express 9(3) 1416-1429 (2019)

Robust polymer colloidal crystal photonic bandgap structures

Stephen H. Foulger, Sanjay Kotha, Beata Sweryda-Krawiec, Travis W. Baughman, John M. Ballato, Ping Jiang, and Dennis W. Smith
Opt. Lett. 25(17) 1300-1302 (2000)

Direct estimation of NIR reflection spectra utilizing a snapshot-type spectrometer with photonic crystal multi-spectral filter arrays

Yasuo Ohtera, Nao Ikeda, Tomohisa Takaya, and Kazuma Shinoda
Appl. Opt. 59(17) 5216-5225 (2020)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access Optica Member Subscription

Select as filters

Select Topics Cancel
© Copyright 2023 | Optica Publishing Group. All Rights Reserved