Recent content by leej12

Yes, this is what we are doing. Thank you for your advice, Jeff. I will look into everyone's suggested topics and texts and continue diving into this project.

We have yet to determine the time constant, but the emission has a half life of 4-5 hours. Preferably it would be easier to use some sort of band pass filter, but if the difference between the two wavelengths is too small this would be difficult.

Ideally I would like as many readings within the time period that the device is on. I think that this would allow for an average of the readings and therefore higher accuracy, correct? At this stage, I do not know how much light will be emitted and attenuated through tissue. We will be doing...

Yes, what I would like to know the most is the general hardware that I will need for this IR sensor. Such as what type of photodiode would be most suited, op amps, digital to analog converters, etc.

I should have clarified, the molar absorption coefficient is 96000 M−1⋅cm−1. Yes, will it be too difficult? In-vivo near infrared imaging has been done and all we need is a relative measurement of intensity.

The extinction coefficient is 96000. The depth is 2.5cm

Will a band pass filter work? If so, how much will the emitted wavelength have to be? In addition, can you "remove" noise by accounting for it through modelling? Or will it still affect measurement regardless?

Hello, I am part of a synthetic biology team whose goal is to modify immune cells to respond to an incident wavelength of 670-702nm and emit a near-infrared wavelength of 650-900nm(to be determined). My goal is to create a sensor that will be able to detect this emitted wavelength through...