# How we can collect two wave(light) ?

• PhyHunter
In summary, the conversation discusses using lenses and mirrors to combine light from different wavelengths, and also mentions the use of optical filters or diffraction gratings to isolate narrowband light for measurement.

#### PhyHunter

How we can collect two wave(light)?
Thanks

The question is not quite clear... But lenses and mirrors come to mind. A lens or a angled mirror redirects light. You can be clever and use lenses and mirrors to concentrate light together in a volume, area or point. Of course we are familiar with these types of devices, glasses, microscopes, prisims, etc.

I want to say how can collect two waves which different wavelenght

Still not enough information, but I'll take a stab, photodetectors generally have quite a wide range of responsivity and will produce a measurable voltage when lots of different wavelengths are incident (e.g. 500 - 900 nm). You can work around this using optical filters, signle-mode fibers, or diffraction gratings, which isolate narrowband light from a broadband source. If you have e.g. 550 and 800 nm light, split it, send one through a 550 nm filter and the other through a 800 nm filter, then send each to its own photodetector with known responsivity in the given ranges.

From the two output voltages you can deduce from a single incoming light source what intensity is at 550 nm and what intensity is at 800 nm.

for the question! Collecting two waves of light is a common practice in many scientific experiments and can be done in a few different ways. One method is to use a device called a beam splitter, which uses partially reflective surfaces to split a single beam of light into two separate beams. Another way is to use multiple detectors placed at different angles to collect the light waves from different directions. This is often used in interferometry experiments, where the interference patterns of the two waves can provide valuable information about the properties of the light source. Additionally, specialized equipment such as polarizers and filters can be used to manipulate and collect specific wavelengths of light. Overall, there are many techniques available for collecting two waves of light and it ultimately depends on the specific experiment and desired outcome.

## 1. How does the process of collecting two waves (light) work?

To collect two waves of light, we use a device called an interferometer. This device splits the incoming light into two beams, which are then combined again. By measuring the interference pattern created by the two beams, we can collect information about the two waves of light.

## 2. What types of waves can be collected using an interferometer?

An interferometer can collect any type of electromagnetic waves, including visible light, radio waves, and microwaves. It can also collect other types of waves, such as sound waves, by converting them into electromagnetic waves first.

## 3. Can we collect two waves of light simultaneously?

Yes, an interferometer can collect two waves of light simultaneously. The device can split the incoming light into multiple beams, allowing us to collect multiple waves at the same time.

## 4. Is it possible to collect waves of different frequencies using an interferometer?

Yes, an interferometer can collect waves of different frequencies. This is because the device can be adjusted to account for the different wavelengths of the waves, allowing us to collect and analyze them separately.

## 5. Are there any limitations to collecting two waves of light using an interferometer?

While an interferometer is a powerful tool for collecting waves of light, it does have some limitations. For example, it can only collect waves that are within a certain range of frequencies. Additionally, the accuracy of the collected data can be affected by factors such as environmental conditions and the quality of the instrument itself.