Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Fourier transform emission lifetime spectrometer.

Leilei Peng1, Jason T Motz, Robert W Redmond

  • 1Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA.

Optics Letters
|March 16, 2007
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Two-photon 3D imaging of optically stimulated neural activity at 100 Hz.

Light, science & applications·2026
Same author

Efficient algorithm for optimal wavelength selection in photoacoustic spectral unmixing.

Biomedical optics express·2026
Same author

Polarization-sensitive optical coherence tomography-based fully-automated volumetric coronary fibrous cap characterization.

European heart journal. Imaging methods and practice·2026
Same author

Erratum: Wavenumber-space wavefront sensorless adaptive-optics for optical coherence tomography: publisher's note.

Biomedical optics express·2026
Same author

Glucagon-like peptide-1 receptor agonists reduce experimental atherosclerosis progression, inflammatory biomarkers and cardiovascular events, irrespective of hyperglycaemia and obesity.

European heart journal·2026
Same author

Label-free subcellular imaging with dynamic spectrally encoded confocal microscopy (D-SECM) with subpixel jitter correction.

Biomedical optics express·2026
Same journal

Gaussian-modulated continuous-variable quantum key distribution over 60 km fiber using an integrated silicon photonic receiver.

Optics letters·2026
Same journal

E2E-OCT: end-to-end joint learning model using optical coherence tomography images for vocal cord leukoplakia diagnosis.

Optics letters·2026
Same journal

Holographic generation of panoramic 3D scenes by concave ellipsoidal mirror reflection.

Optics letters·2026
Same journal

Dual-pilot phase recovery with pair-wise maximum-ratio combining for coherent PONs.

Optics letters·2026
Same journal

Mapping the whispering gallery modes of a CaF<sub>2</sub> disk resonator with half-tapered fibers to estimate the fundamental mode volume.

Optics letters·2026
Same journal

Quantitative estimation of deep-subwavelength scale via dark-field scattering axial energy concentration decay profiles.

Optics letters·2026
See all related articles

This study introduces a fast, affordable Fourier transform spectrometer. The device measures excitation spectra and emission lifetimes simultaneously, offering insights into quantum confinement effects and mixtures of emitting species.

Area of Science:

  • Spectroscopy
  • Physical Chemistry
  • Materials Science

Background:

  • Accurate measurement of emission lifetimes and excitation spectra is crucial for understanding photophysical processes.
  • Existing techniques can be time-consuming or expensive, limiting their widespread application.

Purpose of the Study:

  • To develop a rapid and low-cost Fourier transform spectrometer.
  • To simultaneously measure excitation spectra and excitation wavelength-dependent emission lifetimes.
  • To investigate photophysical properties of materials like porous silicon and ruthenium complexes.

Main Methods:

  • Utilized a path length modulated Michelson interferometer.
  • Employed Fourier transform spectroscopy for simultaneous spectral and lifetime measurements.

Related Experiment Videos

  • Validated the technique with tris(2,2'-bipyridyl) ruthenium(II) and porous silicon.

    • Main Results:

    • Achieved simultaneous measurement of excitation spectra and lifetimes.
    • Obtained literature-consistent data for tris(2,2'-bipyridyl) ruthenium(II).
    • Observed excitation-dependent lifetimes in porous silicon, indicating quantum confinement effects.

    Conclusions:

    • The developed Fourier transform spectrometer is rapid, low-cost, and effective.
    • The technique is suitable for analyzing mixtures with closely spaced lifetimes.
    • It provides valuable insights into excitation wavelength-dependent emission phenomena and quantum confinement.