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Questions related to Optics
Since we need to find the change in refractive index with respect to the propagation direction, does it really need a variable angle ellipsometer?, so that change in angle results in change in...
25 April 2017 8,999 4 View
The sample is a porous oxide layer on Aluminum produced by plasma electrolytic oxidation. Already, the sample employed for corrosion studies around 1000 h. Then, the corroded sample was...
23 April 2017 7,082 5 View
View signal visualuzer in optisystem give results of x and y components of dual polarized signal with real and imaginary parts . Is there any method to combine real and imaginary parts of x and...
18 April 2017 744 2 View
I generate orthogonal spatial modes like Hermite-Gaussian or Laguerre-gaussian from two different laser sources. Thus coming from incoherent sources will they not be orthogonal? Or in other words...
14 April 2017 4,672 2 View
In Wikipedia, it is said that quantum dot laser "avoid some of the negative aspects of device performance associated with traditional semiconductor lasers based on bulk or quantum well active...
09 April 2017 6,568 3 View
if in chromatic confocal sensor, a led with low coherence and a multi-mode fiber are used. I wonder this imaging process should be the which one ? In the monograph about fiber optical confocal...
05 April 2017 6,423 3 View
What equation is using for LS factor calculation for RUSLE in Arc GIS 10.1? Is it same as USLE method? Any suggestions will be welcome.
05 April 2017 684 6 View
I am using DLS measurements in order to calculate the second virial coefficient of a full-length mAbs in the presence of different buffer compositions and to do that, refractive-index increment...
04 April 2017 5,871 5 View
I have a parabolic mirror and want to place some optical fibers at the focal point in order to transmit light inside a climate chamber. Which optical fibers would you suggest?
02 April 2017 7,636 7 View
Now there are many Superluminescent Diode with a 3dB bandwidth of about 100 nm on sale. And they also provide SLD modules with a 3dB bandwidth of about 400 nm, by combining 4 SLDs, which is much...
30 March 2017 9,045 4 View
According to EPA US in scattering based turbidity monitoring instruments such as nephelometers, the detection angle should be considered to be 90 degree. What it the advantage of using this...
29 March 2017 7,567 4 View
Here is how I think: 1. Homodyne needs to split the light into two branch of BPDs; ->1/2*P_signal due to 3dB coupler. 2. Heterodyne has intermediate frequency; -> 1/2*P_signal due to cos/sin...
28 March 2017 5,109 1 View
I need OCT database, i couldn't find it via the net ..Can you help me in getting it ?...
27 March 2017 5,355 2 View
Hello!I'm going to assemble passive q-switch, so between the cavity mirrors there will be laser crystal and absorber crystal.Could anyone recommend the software for simulation of these scheme?Big...
25 March 2017 4,858 1 View
I want to simulate the coupling between a Guassian beam and a sandwich waveguide structure and the focus position should be adjusted along the Z-axis. I tried to use the User-Defined profiles but...
23 March 2017 757 2 View
Dear sirs, I asked a bout the ways to solve non-linearity in WDM especially XPM and FWM using optisystem. Thank you
21 March 2017 8,767 3 View
I want to do detail analysis of pore structure of different materials. In this case I need to how actually 2D FFT works on image analysis.
19 March 2017 3,708 4 View
This is used for image reconstruction. Another thing about the modulation of diffuser either it is phase or amplitude or both?
17 March 2017 5,464 4 View
I have an autocorrelation setup, which we observed field correlation with quite high visibility. Then, I insert the BBO crystal which converts 990nm to 475nm. I inserted a aspherical convex lens...
17 March 2017 3,778 16 View
I have a collection of nanocomposite thin films and their corresponding transmittance spectra over a series of temperatures. How can I use these to determine the refractive index (n) and...
16 March 2017 7,999 6 View
we designed a structure can separate left circularly polarized light and right one, i am thinking is it useful in detecting chiral molecules?
15 March 2017 1,304 3 View
Glass optical fiber is not suitable for my application and multimode plastic does not allow for the FBG inscription with required parameters. It can be done only if there are not more than several...
15 March 2017 4,534 3 View
Hi All, Can graphene reflect visible light just like mirror? Thanks.
12 March 2017 10,066 4 View
I want to design lens for an array of LEDs having certain properties like collimation, light mixing, etc, and simulate diffraction patterns as well. What is the systematic way of learning the...
01 March 2017 1,994 5 View