Which nonlinear optical processes lead to multiple wavelength conversion in single period PPLN?

I have performed an experiment to frequency mix 974 nm LD laser and a C-band ASE laser source in a single period (10.2 um) MgO:PPLN. I however noticed five peaks at 487, 536, 598, 756, and 816 nm...

08 September 2018 9,767 8 View

How do I measure the splitting ratio of proton exchanged Y-junction waveguide?

02 March 2017 8,219 6 View

Can someone help me plot the attached Fourier series using Matlab code?

I need a Matlab code to plot a rectangular wave function with a constant period and normalized amplitude. Please see the attached exponential Fourier series. Thank you in advance.

01 February 2017 9,888 4 View

How can i model negative corona discharge for a wire-to-plane geometry?

Dear all, I would like to study negative corona discharge for poling non linear optical crystals e.g Lithium Tantalate. I have however attempted to use plasma model example in COMSOL but i don't...

08 September 2016 5,266 3 View

How do I correct the error in the matlab code?

I have a simple matlab code for plotting a Y-junction but it can't run. Any one with matlab knowledge can please advice me on the attached code.

31 December 2015 1,160 10 View

Can anybody share modeling parameters in COMSOL Multiphysics for Mach-Zehnder interferometer or y-junction design?

COMSOL Multiphysics 5.2 (and above) has a solved Mach-zehnder interferometer in its model library for which part of its geometry is S-shape. I am using version 4.3b which doesn't have that...

31 December 2015 8,915 2 View

How do I design a Y-junction using comsol multiphysics or matlab?

Y-branch waveguide structures are fundamental elements of integrated optics devices such as power or optical splitters, power or optical combiners, integrated-optic gyroscopes, Mach-Zehnder...

31 December 2015 7,947 5 View

Which is the best simulation setup using VPI TransmissionMaker before field testing?

I am investigating the influence of different modulation formats on gain flatness of raman assisted fibre optical parametric amplifiers.

31 December 2014 7,236 2 View

wind and solar energy

can someone help me on how to use available wind velocity data to design a specification of a wind turbine generator

02 March 2010 6,956 4 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

How do I determine the degree of polymerization of PEG 400 based on NMR integration?

Hello, I am working on the photocatalytic degradation of PEG 400. I would like to know if it's possible to determine the degree on polymerization based on NMR integration, or by the MW of the...

02 March 2021 6,186 3 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

Sutter electrode holder leaking after applying positive pressure. How to fix?

I am using a Sutter electrode holder for my patch clamp experiments, but I'm having trouble keeping positive pressure inside my electrode due to a leak out of the back of the holder. I have added...

02 March 2021 5,829 1 View

Do you know any MR image dataset?

I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.

02 March 2021 7,735 3 View

What thickness need for ITO to use as conductive layer?

I want to do RF sputtering of ITO on glass substrate using magnetron sputtering. what thickness do i need to make it good conductive layer to use it for PSC. Moreover, whats about thickness of...

01 March 2021 395 3 View

What could be some reasons why unstimulated monocytes are getting activated?

Im doing PBMC isolation -> CD14+ enrichment using magnetic beads -> stimulation setup. My negative control is just cells in cRPMI but they seem to get activated over and over again.

28 February 2021 7,883 3 View

How to include original NMR data in a manuscript?

hello. i am junior researcher. I received a comment from a reviewer that he could not find NMR data in my submitted paper. I had included the NMR graph with explanation and formula to calculate...

27 February 2021 734 4 View

Why is my platinum counter electrode getting dirty during electrodeposition?

I am conducting anodic electrodeposition of MnO2 onto a stainless steel substrate, using a platinum strip as a counter electrode. This is done galvanostatically, with the current held between 5...

27 February 2021 1,829 3 View

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View