Spectral Intensity Measurement
Spectral Intensity Measurement - Related Videos
09:39
A Behavioral Assay to Measure Responsiveness of Zebrafish to Changes in Light Intensities
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Cited by 222 •
2008
We developed the Visual-Motor Response to quantitate the motor output of larval zebrafish in response to light increments and decrements. We also examined zebrafish vision mutants, including the no optokinetic response (nrc) mutants, which were thought to be completely blind when tested by another vision assay, the optokinetic reflex.
14:26
In vivo Quantification of G Protein Coupled Receptor Interactions using Spectrally Resolved Two-photon Microscopy
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Cited by 6 •
2011
By employing a spectrally resolved two-photon microscopy imaging system, pixel-level maps of Förster Resonance Energy Transfer (FRET) efficiencies are obtained for cells expressing membrane receptors hypothesized to form homo-oligomeric complexes. From the FRET efficiency maps, we are able to estimate stoichiometric information about the oligomer complex under study.
10:28
High-plex Imaging using Spectral Confocal Microscopy to Minimize Non-specific Tissue Fluorescence
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2025
Spectral Iterative Bleaching Extends Multiplexity (IBEX) builds upon the base IBEX technique by adding heparin blocking to minimize nonspecific binding and leveraging spectral detection with computational unmixing to suppress autofluorescence. This approach accelerates image acquisition while reducing sources of background, enabling robust multi-round, high-parameter spatial proteomic analyses.
12:47
Spectral Karyotyping to Study Chromosome Abnormalities in Humans and Mice with Polycystic Kidney Disease
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Cited by 12 •
2012
Spectral Karyotyping (SKY) is an advanced cytogenetics technique to identify genomic and chromosomal aberrations. This technique takes advantage of chromosome painting probes, which allow classification of all chromosomes. SKY can also identify complex chromosome aberrations and segregation defects in mice and humans with various diseases, including polycystic kidney disease.
08:33
Determination of Photoreceptor Cell Spectral Sensitivity in an Insect Model from In Vivo Intracellular Recordings
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Cited by 14 •
2016
The electrophysiological technique of intracellular recording is demonstrated and used to determine spectral sensitivities of single photoreceptor cells in the compound eye of a butterfly.
FAQs
Calibration establishes how detector response and measurement conditions influence recorded values. Because detectors do not necessarily respond identically at every wavelength, uncorrected data can distort the apparent spectral profile. Applying calibration lets engineers interpret differences in measured intensity as characteristics of the lamp, LED, laser, display, or material rather than artifacts of the measurement setup.
A spectral profile shows how optical power is distributed across wavelengths, making prominent emission peaks visible even when total output alone would conceal them. Engineers can use those peaks to compare devices, examine whether a source concentrates radiation in particular regions, and evaluate changes in optical materials or photonic systems. This supports more informative performance characterization than a single overall intensity value.
The measurement can be interpreted according to whether the optical power originates as radiation emitted by a source or as radiation transmitted through a system or material. That distinction connects the profile to different engineering questions: characterizing lamps, LEDs, lasers, and displays emphasizes source behavior, while transmitted measurements help evaluate optical materials.
A basic workflow begins by directing incoming light to a spectrometer or calibrated optical detector, separating the signal by wavelength, and recording intensity at defined wavelength intervals. Engineers then account for detector response and measurement conditions before examining the resulting profile. Keeping these conditions consistent makes comparisons among devices, materials, or process states more meaningful.
This approach is useful for characterizing lamps, LEDs, lasers, and displays, because each can be examined through its wavelength-dependent output. It also supports evaluation of optical materials and monitoring of engineering processes. In these settings, the measured profile provides a basis for comparing performance and identifying emission peaks rather than relying only on a general intensity assessment.
In engineering design, the resulting wavelength-dependent data can inform sensors, imaging systems, and energy-efficient technologies. The profile helps connect a device or material’s optical behavior with the requirements of a larger photonic system. Engineers can therefore use measured intensity patterns to guide evaluation and design choices while retaining calibration information needed for meaningful interpretation.