Is a 100mw Green Laser Too Powerful for Double Slit Experiments and Microscopy?

[zepp0814]

Hi forums I really want to do some experiments with lasers and i was wondering if for the double slit experiment a 100mw green laser is so powerful and bright. also there is a 30mw laser, would that be better. another thing is that i wanted to make a laser "microscope" but i was worried that a 100mw was too bright, should i worry about that.


*that 100mw has an adjustable focus

 

[Vanadium 50]

You don't need anything so powerful and dangerous. A cheap laser pointer works fine.

 

[Andy Resnick]

I agree with Vanadium- both the 100 mW and 30mW lasers are class III devices, and unless you understand how to deal with those hazards, you should not be using them. The maximum eye-safe power for a visible laser is 1 mW (0.39 uW for continuous exposure without the blink reflex).

 

[f95toli]

both the 100 mW and 30mW lasers are class III devices, and unless you understand how to deal with those hazards,

Not only that. Where I work lasers as powerful as >30 mW (well, anything class III or above) can only be used in designated areas equiped with interlocks and other safety equipment, and these areas can only be accessed by trained personel.

The point is: DONT USE LASERS LIKE THAT! They are extremely dangerous, and even a reflected beam could make you blind for life.

 

[sardar]

so it can be focused down to a very small point, making it useful for the microscope.

I would advise caution when conducting experiments with lasers, especially when it comes to the power and brightness of the laser. A 100mw green laser can be quite powerful and should be handled carefully to avoid any potential hazards. It is important to always follow proper safety precautions and use protective gear when working with lasers of this magnitude.

In terms of the double slit experiment, the power and brightness of the laser should not have a significant impact on the results. However, if you are concerned about the intensity of the laser affecting the experiment, you may want to consider using a lower power laser, such as the 30mw one you mentioned.

When it comes to creating a laser microscope, the 100mw laser may be too bright for comfortable use. It is important to consider the safety of your eyes and the eyes of others when working with high-powered lasers. If possible, it may be a good idea to use a lower power laser for this application, or to use additional safety measures such as filters or diffusers to reduce the intensity of the laser.

Overall, it is important to carefully consider the potential hazards and safety precautions when working with lasers, and to always use caution and proper protective gear. If you are unsure about the safety of a particular experiment or application, it is always best to consult with a trained professional.