Can ultrafast lasers help us understand the complex process of photosynthesis?

In summary, it is possible to induce photosynthesis with laser light as long as the correct wavelength is used. There is published work on this topic, including a technique called two-dimensional electronic spectroscopy which allows researchers to study the flow of light-induced excitation energy through molecular complexes with femtosecond temporal resolution.
  • #1
LukeJD
6
0
Warning: This is a potentially stupid question!

Is it possible to induce photosynthesis with laser light?

What kind of published work is there on it?

Thanks!
 
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  • #2
Yes, as long as the light is of the correct wavelength, it does not matter if it comes from the sun, a light bulb, or a laser. In fact, by using ultrafast lasers, researches can perform very sophisticated experiments to probe what happens during all of the electron transfer reactions during photosynthesis (for example, see http://www.lbl.gov/Science-Articles/Archive/PBD-quantum-secrets.html) [Broken]:

Fleming and his research group have developed a technique called two-dimensional electronic spectroscopy that enables them to follow the flow of light-induced excitation energy through molecular complexes with femtosecond temporal resolution. The technique involves sequentially flashing a sample with femtosecond pulses of light from three laser beams. A fourth beam is used as a local oscillator to amplify and detect the resulting spectroscopic signals as the excitation energy from the laser lights is transferred from one molecule to the next. (The excitation energy changes the way each molecule absorbs and emits light.)
 
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1. What is the role of lasers in photosynthesis?

Lasers are used in photosynthesis research to study the process of light absorption and energy transfer within plant cells. They can also be used to manipulate the wavelengths of light that plants are exposed to, allowing scientists to better understand how different wavelengths affect photosynthesis.

2. Can lasers be used to enhance photosynthesis in plants?

While lasers can be used to study photosynthesis, there is currently no evidence that they can enhance the process in plants. Photosynthesis is a highly complex process that involves various factors besides light, so simply increasing the amount of light with lasers may not necessarily result in increased photosynthesis.

3. How do lasers affect the growth and development of plants?

Studies have shown that exposure to lasers can have both positive and negative effects on plant growth and development. In some cases, low-intensity laser light has been shown to stimulate plant growth and increase photosynthesis, while high-intensity lasers can cause damage to plant tissues.

4. Are there any practical applications of lasers in agriculture related to photosynthesis?

One potential application of lasers in agriculture is using them to remotely monitor and control the growth and health of crops. By measuring the reflectance of lasers on plant leaves, scientists can gather information about the plant's photosynthetic activity and overall health. This can help farmers make more informed decisions about irrigation and fertilization, ultimately improving crop yields.

5. Can lasers be used to study the effects of climate change on photosynthesis?

Yes, lasers can play a crucial role in studying the effects of climate change on photosynthesis. By manipulating the light wavelengths and intensities that plants are exposed to, scientists can simulate different environmental conditions and observe how plants respond. This can help us better understand how climate change may impact photosynthesis and plant growth in the future.

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