What is the average life time modification of Quantum dots due to stimulated emission?

I understand that the life time of an excited state is modified due to stimulated emission, we can measure that using standard TCSPC technique. What i want is to compare the modified spontaneous...

01 January 1970 920 1 View

Help request in CST microwave?

im working now on TPV solar cells and metamaterials and i realy need our help in CST microwave i have a tpv cell simulation and i want to extract particullarly the absorbtion of only the active...

02 March 2021 2,246 2 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

How can we limit artifacts caused by rotation in fiber photometry?

We are trying to run fiber photometry experiments for long time scales, but we get these sinusoidal artifacts that come up. We think they may be caused by twisting of the fiber optic subject...

25 February 2021 568 1 View

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 3 View

How can I simulate the optical absorption spectrum of a biomaterial (like DNA or protein) in COMSOL?

I need to simulate the optical properties of a biomaterial, namely DNA, in COMSOL. Basically I need to simulate the IR absorption spectrum of a cylinder filled with a 'concentration' of DNA. I am...

21 February 2021 3,043 3 View

How to model in HFSS or FEKO Free Space Material Characterization?

I am having trouble setting up this problem in HFSS or FEKO. In HFSS, I've tried both FEM and FEBI-IE solvers. With FEKO, I've tried it's MoM solver and default settings. I am would like model...

09 February 2021 375 2 View

What is best solution for optical metamaterial design calculation: HFSS, COMSOL, CST?

Dear all, Now I'm selecting FEM for design of metamaterials on NIR~VIS frequencies, and keeping 3 software: ANSYS HFSS, COMSOL with wave optics module, and CST STUDIO SUITE. Could you give me...

09 February 2021 9,517 2 View

Sound transmission loss (Acoustic Metamaterial)?

My design contains three parts. A silicon rubber membrane is placed between upper and lower part. I want to calculate sound transmission loss by using comsol Multiphysic. There are lots of...

05 February 2021 466 4 View

What is the reason of the received optical signal to be slimmed down in multi-mode fiber?

What is the reason of the received optical signal to be slimmed down in multi-mode fiber? I have 4 km multi-mode fiber

03 February 2021 1,105 10 View