All Questions
Tagged with material-science infrared-radiation
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The absorption of infrared light for regular materials, like fabric wallets backpacks and clothes
I work as a brand partner for a company that produces a patch which strengthens the production of stemcells in the body.
The patches are activated with the help of the bodys own infrared radiation.
I ...
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Does infrared radiation emitted by an object happen only from its surface, or is emission also from the centre of the object?
Textbook answer of how radiation is emitted is from the surface. Does the inside of a object also emit infrared?
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Can infrared light pass through solid materials
I have an IR sensor at about few tens of mm (millimeter) from a heating source (incandescent bulb or heating element). The phototransistor in my sensor is lead lined but I guess it is sensitive to a ...
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Anomaly in Photoelectric effect
Good day.
While doing a physics experiment for a university assignment, I was tasked with measuring the maximum wavelength at which a potassium cathode shined by a monochromatic light emits electrons.
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Are there any material coatings that would currently be effective to counter the rise of directed energy weapons?
I've been reading into directed energy weapons recently, and they seem like they're going to be a gamechanger. I'm just curious as to material countermeasures. I've learnt that some dielectric mirrors ...
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What are some of the best materials to use for building a fiber laser safety enclosure of 1060nm - 1085nm?
I have gotten a 30W JPT-LP Litemarker Fiber Laser which has a wavelength range of 1060nm - 1085nm. Before even thinking about using it, i want to build an enclosure for it to increase the level of ...
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Will the spacing between the mirror segments of the Webb space telescope degrade the sharpness of its images?
I've noticed that the existing spacing between the 18 mirror segments of the Webb space telescope are many times the operational infrared spectrum wavelengths (i.e. 0.6-28μm) of the telescope meaning ...
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What variables affect an object's absorption of invisible light?
Say I have two objects (we'll call them object $1$ and object $2$) of the same material but of a different colour, placed at the same distance away from another object (we'll call object $3$) that ...
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What material absorb IR and let visible light through? [closed]
Beside water, what common materials -- man made or otherwise -- absorb infrared (~800nm-~1100nm) and let visible light through? I think glass IR stop filters absorb, but glass itself reflects IR. IR ...
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I'm working on a project with infrared light and I need materials that are transparent to IR light
I'm going to be using infrared light of wavelength somewhere around $700-800 \space \text{nm}$ and I need cheap materials that can be easily found/bought which are transparent to infrared light.
It ...
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Tourmaline-Laden Ceramics in Hair-Care Products
I have seen a great deal of hype for hair care products in which the ceramic of any part of the product (barrels of hairbrushes (particularly the cylindrical blowdrying brushes), heating elements of ...
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How does silver affect transmission of energy in the visible and infrared part of the spectrum?
A common method to prevent radio frequency and microwave energy from going through windows is to apply a microscopic layer of silver to the surface of the glass, either by attaching a film coated with ...
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Why radio waves can pass through walls but not infrared waves?
My physics teacher told that infrared waves are not passing through walls due to rayleigh scattering,but rayleigh scattering increases with increase in wavelength,then why radio waves are passing ...
user197535
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Can Thermal cameras see through walls?
I saw this cod black ops 4 cod is based on realistic gameplay, so i am curious if thermal cameras really can do that? i think this may be a possibility if the sensors are highly sensitive and can ...
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What plastic-like materials allow IR to pass through them? [closed]
What plastic-like materials allow IR to pass through them?
Material should be solid and plastic like. Does't care if it is transparent to light or not.
IR ray is emitted by Sharp distance center so it ...
