Elco Leenders posted a question in Agricultural Science

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Nikolaas Jonk posted a question in

Working on a research paper about integrated photonics and want to learn more about diode lasers.

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Peternella Klopstra posted a question in

Photonics Integrated Circuits

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Edwin de Rover posted a question in

It is obvious that biophotonic emission rate depends on various factors like age, growth factor, etc etc and the question may seem a little vague.

But I would like to know

#1: what would be the average biophotonic emission rate of a single human cell? I am mentioning it to be average, so as to temporarily compromise on the various sizes of cells in human body

#2: Available literatures broadly classify the spectral range to be 300 - 650 nm. Please let me know if data on spectrum is available on a single cell level.

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Yoram den Haan posted a question in

Ions of these elements, such as Eu, Er, are great luminescent sources. But what is the reason to use ions of rare-earth metals rather than neutral atoms?

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Ilja Nuijen posted a question in

I am doing my research on metal nanoparticles by using laser ablation in de-ionized water.The day i prepared my sample i did Uv-vis Characterization to determine the band gap.I placed the sample intact and than did the same characterization after 10 days and observed a decrease in band gap.The color of the sample also changes from grey to milky white.What might be the reason behind decrease in band gap?

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Anne-Sophie Albertus posted a question in

I am undertaking research in the photonic crystal based blood sugar sensor. So there is no correct value of blood glucose refractive indices.

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Lucas Gielen posted a question in

The presentation is for a seminar on the same for final year ece students.

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Peternella Klopstra posted a question in

My research concentrates on component design using photonic crystals for optical systems Is there any such component fabricated and made commercialized?

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Stefano Gottardi posted a question in

We all know that from the Planck formula there is no limit for the lowest energy state of a photon. Moreover, an argument based on the doppler effect can further enforce this statement. However, there are also reasons to believe that a lowest quanta exists. If so, how much energy is in this quanta? How can we measure it?
We can always imagine a very slow varying electric field, but is there a lower limit for the emission of electromagnetic radiation?

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