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Ultrasound

elmh0281

hi everyone...

is possible to stop light with ultrasound?

Im developing a project with and we would like to stop light with ultrasound(high frequency).

 

you think is better to use raspberry pi?

Cheers

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  • 0

    Hi Mub,

    If you want to produce a refraction barrier in air an intense low frequency sound wave will work better than an ultrasonic sound wave. Ultrasonic frequencies are quickly absorbed. Have you ever noticed how the bass of a passing car with sub woofers is all that you can hear and that you can hear it from a block away. Now while I doubt that it can actually be done let's assume that you can produce a refraction gradient in the air that is as high as a piece of glass. If your light hits the glass at 90 degrees it will pass through in a straight line. As the angle of incidence increases, the light will refract more and a portion will reflect from the boundary between the two different refraction indices. This of course will not stop the light as you wanted to do only divert it. Based on you original question and the lack of specifics it seems that the answer to your question is "no" you can not stop light with ultrasound.

    John

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  • 0

    Hi Mub,

    If you want to produce a refraction barrier in air an intense low frequency sound wave will work better than an ultrasonic sound wave. Ultrasonic frequencies are quickly absorbed. Have you ever noticed how the bass of a passing car with sub woofers is all that you can hear and that you can hear it from a block away. Now while I doubt that it can actually be done let's assume that you can produce a refraction gradient in the air that is as high as a piece of glass. If your light hits the glass at 90 degrees it will pass through in a straight line. As the angle of incidence increases, the light will refract more and a portion will reflect from the boundary between the two different refraction indices. This of course will not stop the light as you wanted to do only divert it. Based on you original question and the lack of specifics it seems that the answer to your question is "no" you can not stop light with ultrasound.

    John

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