Related Concept Videos
Depth Perception and Spatial Vision
Spreading of Chromatin Modifications
Writers
The writer...
Light Acquisition
Light as Energy
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit...
The Wave Nature of Light
Photoreceptors and Plant Responses to Light
You might also read
Related Articles
Articles linked to this work by shared authors, journal, and citation graph.
Multimodal 3D light-field and laser-speckle endoscopy.
Chinese herbal Formula Q attenuates letrozole-induced polycystic ovary syndrome through modulating multiple metabolic processes in female adult rats.
Related Experiment Video
Updated: Feb 4, 2026

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
Published on: January 28, 2019
Spatial and spectral imaging of point-spread functions using a spatial light modulator.
Sravan Munagavalasa1,2, Bryce Schroeder1,3, Xuanwen Hua1
1Department of Biomedical Engineering, Stony Brook University, State University of New York, Stony Brook, NY 11794, United States.
We engineered a point-spread function (PSF) to capture molecular emission
Area of Science:
- Optical microscopy
- Spectroscopy
- Biophysics
Background:
- Accurate spatial and spectral information is crucial for molecular imaging.
- Existing methods face challenges in simultaneously resolving these properties.
Purpose of the Study:
- To develop a novel point-spread function (PSF) engineering technique.
- To enable simultaneous imaging of spatial and spectral information of molecular emissions.
Main Methods:
- Utilized a spatial light modulator (SLM) for PSF engineering.
- Imposed a dispersive grating pattern on emissions to encode spectral data.
- Developed a deconvolution model for separating spectral and spatial information.
Main Results:
- Demonstrated successful encoding of spectral information via grating patterns.
- Validated a deconvolution model for decoupling spatial and spectral data.
- Achieved simultaneous 3D spatial and spectral imaging of molecular emissions.
Conclusions:
- The developed PSF engineering approach effectively captures spatial and spectral data.
- This technique is applicable to advanced molecular imaging, including single-molecule studies and fluorescence microscopy.

