Infrared Laser Application
Infrared Laser Application - Related Videos
09:38
Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
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Cited by 4 •
2015
We describe the generation of far-infrared radiation using an optically pumped molecular laser along with the measurement of their frequencies with heterodyne techniques. The experimental system and techniques are demonstrated using difluoromethane (CH2F2) as the laser medium whose results include three new laser emissions and eight measured laser frequencies.
08:06
Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications
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Cited by 3 •
2017
Protocols for the synthesis of microspheres from polymers, the manipulation of microspheres, and micro-photoluminescence measurements are presented.
11:04
Control of Cell Geometry through Infrared Laser Assisted Micropatterning
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2021
The protocol presented here enables automated fabrication of micropatterns that standardizes cell shape to study cytoskeletal structures within mammalian cells. This user-friendly technique can be set up with commercially available imaging systems and does not require specialized equipment inaccessible to standard cell biology laboratories.
10:06
Fabrication and Application of Rose Bengal-chitosan Films in Laser Tissue Repair
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Cited by 23 •
2012
Sutures are usually needed to repair tissue during surgical procedures. However, their application can be problematic as they are invasive and may damage tissue. The fabrication and application methods of a novel tissue adhesive are here reported. This adhesive film is laser-activated and does not require the use of sutures.
10:47
Whole-body Mass Spectrometry Imaging by Infrared Matrix-assisted Laser Desorption Electrospray Ionization (IR-MALDESI)
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Cited by 19 •
2016
A mass spectrometry imaging (MSI) source operated at atmospheric pressure was developed by coupling mid-infrared laser desorption and electrospray post-ionization. Exogenous ice matrix was used as the energy-absorbing matrix to facilitate resonant desorption of tissue-related material. This manuscript provides a step-by-step protocol for performing IR-MALDESI MSI of whole-body neonatal mouse.
FAQs
Wavelength and energy influence how infrared light interacts with neural tissue. Depending on these settings, tissue may absorb or scatter the light, or the beam may produce photothermal effects or nonlinear excitation. Selecting conditions that match the experimental goal helps investigators distinguish between imaging, measurement, stimulation, and targeted manipulation while limiting unintended biological responses.
Pulse duration and beam intensity help determine whether infrared exposure produces a measurable or influential biological response. Changing either parameter can alter the amount and timing of energy delivered to tissue, which affects photothermal effects and nonlinear excitation. These variables therefore require deliberate control when researchers seek precise neural stimulation or optical recording.
Nonlinear excitation allows infrared laser energy to support specialized imaging approaches such as two-photon microscopy. This mechanism can be used to examine neural tissue with spatial precision and to access structures that may be difficult to study with other light conditions. Its value lies in linking controlled optical excitation with observations of neural connectivity and activity.
Researchers should consider the target tissue, intended outcome, wavelength, beam intensity, and pulse duration before applying an infrared laser. They also need to account for whether absorption, scattering, photothermal effects, or nonlinear excitation is central to the experiment. Matching these conditions to the goal helps support precise measurement, imaging, stimulation, or manipulation.
In neuroscience, infrared laser application can support two-photon microscopy, neural stimulation, optical recording, and targeted manipulation of brain circuits. These uses address complementary goals: visualizing tissue, influencing neural activity, recording optical signals, or modifying selected circuits. Together, they help researchers investigate neural connectivity, activity patterns, and mechanisms associated with disease.
These methods can provide greater spatial precision and access to deep or delicate neural structures. That combination allows experiments to examine connectivity and activity while targeting particular brain circuits. By linking controlled light exposure with imaging, recording, stimulation, or manipulation, infrared approaches can contribute to studies of how circuit changes relate to disease mechanisms.