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Questions related to Optics
I am looking for the thinnest possible infrared mirror. A thickness of about 100 micrometers would be ideal. Does anyone have an idea ? The coating should be on both sides and the mirror should be...
15 October 2018 1,892 5 View
Hi all. May I know how to rationally choose the start time of a time monitor in Q-analysis group and time apodization in a f-domin field and power monitor in order to cut out the effect exerted...
19 September 2018 3,000 0 View
I have had so much difficulties with measuring PSD of fumed silica using DLS with 90 degree light scattering. The data do not make sense and I wonder if the particles aggregate very fast or there...
16 September 2018 8,733 3 View
I have come across a few journal articles that pertained to the usage of the QELS method for determining not just the interfacial surface tension but also the dynamic surface tension gradient. I...
14 September 2018 9,772 2 View
An optical gyro rotating at very less velocity may generate an output signal in milliHertz range. Is it possible to detect such signals?
09 September 2018 9,105 3 View
Dear Researchers, How to define a collimating lens in TracePro Software? Thanks and Regards, Dhanu Chettri
06 September 2018 4,327 2 View
The emission wavelength of active part of laser cavity depends upon the bandgap of material, while the allowed oscillation frequencies of passive part depends upon cavity length. How these 2...
03 September 2018 1,075 4 View
If an optical signal of 1550 nm wavelength is incident on a pin photodiode, what will be the nature of its output photocurrent ?
19 August 2018 1,152 23 View
I am in the process of building a new setup and have a discussion with my colleague on the subject. We will measure several monolayers on a flat reflective surface inside a vacuum chamber with ~1...
09 August 2018 9,642 2 View
Hi all, I am considering options for thermal imaging in a well plate. I have seen infrared camera used in vivo but so far no papers in vitro with commercially available resources. Could anyone...
30 July 2018 10,018 3 View
A simple definition might help to understand the diffraction pattern in an aperiodic nano-micro structured surface.
20 July 2018 4,237 6 View
I am doing some measurements using an LG02 beam and I find that the inner diameter is decreasing with increasing beam energy. This has already been seen. This means that the valley of the LG beam...
15 July 2018 9,255 9 View
Did anyone observe the suppression of low fluorescence signals from one organelle due to high signals from other organelles?
02 June 2018 6,154 6 View
Can somebody explains how to collects the statics of number of citation per year on a specific keyword ? I want to know number of citations per year on "Metasurfaces." It is perhaps one of the...
31 May 2018 3,482 8 View
I need to measure the power density of a laser. What is the most appropriate equipment to measure the intensity of a laser beam?
11 April 2018 2,592 3 View
I'm trying match the phase between different links(all the links has same devices with same parameters). As i know i have to place an exact same length of the fiber between all the links to...
23 March 2018 10,159 2 View
I am trying to optimally couple the light from a pulsed Nd:YAG laser source into a 2mm core fibre. The wavelength range is between 680nm - 1050nm. The output beam from the laser is large so...
22 March 2018 3,067 5 View
I have a 1-D signal. I transform it to frequency domain through FFT. I want to know whether I could take the Kurtosis of the Fourier coefficients (Real part) ?
20 March 2018 8,787 1 View
During sliding wear in a ball on disc (BoD) configuration, given all conditions are identical i.e normal load, temperature, sliding speed and counterface material, only difference being the...
14 March 2018 4,318 10 View
There are many fields where light field can be utilized. For example it is utilized in microscopy [1] and for vision based robot control [2]. Which additional applications do you know? Thank you...
06 March 2018 2,721 3 View
Hi fellow researchers, I am trying to purify a protein of 50KDa for structure function analysis and folding unfolding kinetics using chemical denaturant. I have purified my protein from Inclusion...
03 March 2018 9,929 3 View
Total internal reflection (TIR) is a key mechanism for many optical devices and mentioned in any optics course. But why is the reflection angle identical to the angle of incidence? Why isn't it...
19 February 2018 5,936 14 View
"Phonon energy" is typically used to describe the resonance energy of lattice vibrations. As the host phonon energy decreases , we need more number of phonons to bridge the energy gap between...
16 February 2018 1,597 4 View
How the electronegativity affect on the solubility of two metals? that consequence to form a Core-Shell, Inter-metallic and alloy of metals. I am looking for answer corresponding to bulk or nano size.
14 February 2018 9,804 2 View