The researchers precisely focused femtosecond pulses of laser light very close to the front surface of a block of glass in order to "propagate a hairline laser beam without the need of specially fabricated waveguides," said Stelios Tzortzakis, a research associate at Ecole Polytechnique in France. "The laser beam is self-guided."

Edit In answer to the comment, you should be aware that no matter how transparent is the material in infrared, by absorbing the visible part of the radiation produced by the lamp it will still get hot. So your condition, transparent in IR, absorbant in visible, is not sufficient for your application if you want to avoid the shade getting hot

This Stanford University source reveals that short wave UV (UVC) cannot pass through most plastics or ordinary glass. Most acrylic plastics do not allow UV-C wavelengths (100-280 nm) to penetrate. Also, very thin acrylic sheets of below 5 millimeters do not let UVC light penetrate.
Myth #5: If it’s cool or cloudy outside, you don’t need sunscreen. Reality: According to the SCF, up to 80 percent of the sun’s UV rays can pass through clouds. This is the reason people
Improve this question. 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 has to come back. Don't know well about the length of the wave. More about the sensor.
Ultraviolet light behaves in many ways just as visible light, and it can thus in principle be used with the same times of optical elements as visible or near-infrared light: focusing and imaging lenses, mirrors, optical windows, beam splitters, prisms, polarizers, waveplates, optical filters etc. UV mirrors and lenses are also available in aspheric versions, and anti-reflection coatings are
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does uv light pass through plexiglass