Can anyone introduce a review paper about different methods of optical force calculation?

I need to find the eigenfrequency of the coupled disk resonator in terms of the wavelength (refractive index of the material -1.6, size of the disk 1um, diameter-1um ). anyone who an expert in comsol try to help me .If it is possible provide examples also thank you

I want to find if my metamaterial absorber is thermally stable. And to know that I need to show that for a wide range of temperature my design has a similar absorptivity as that of standard temperature. Basically I want to plot absorptivity vs wavelength graph for different temperature.

Hi CST Studio users,

I am trying to simulate the diffraction orders of a very simple wire-grid grating in CST studio. The wires are made of PEC and are free standing in vacuum. The unit cell includes only a single period of the wire and gap with duty cycle of 50%. The width of the wire is 2.5mm and the width of air gap is 2.5mm as well. I use the far-field plot in order to plot the diffraction orders. According to the grating equations sin(theta)=m*lambda/d where m is the diffraction order, lambda is the simulation wavelength (300GHz = 1mm) and d is the grating period (5mm) I expect to get the first order diffraction at 11.5 degrees. However, the far-field plot shows a null at 11.5 degrees and a peak at 16.5 degrees. The far-field plot is attached. Then I did another simulation of the same grating but now without a unit cell. for this simulation I took 20 periods of the grating. This time I got the first order peak at 11.5 degrees as expected (far-field plot attached). Can anyone explain why the unit cell simulation gives me wrong results?

Thanks in advance

Please I need an assistance from any researcher on COMSOL Multiphysics Tutorial - Simulation of a Metasufrace Absorber. I don't know the software for now

When there is no magnetic field in the simulation, emittances given by the postprocessing and my own code are same. But when there is magnetc field in the simulation, no matter how small of the field, emittances parallel to magnetic induction are different.

The simulation software is CST Studio Suite 2020 Particle Tracking Solver. For the same structure of RF negative hydrogen ion source, the H- beam is extracted from plasma electrode and accelerated by the extracted electrode and accelerated electrode. There are two pairs of rod filter magnet in this structure.

How can I model the red circle part (Paper with 0.24mm thickness and Air with 6mm thickness) in figure1 (equivalent circuit model) in ADS?

Did I do the right job in figure 2(My model in ADS)?

Is there any component in ADS for dielectric layer in certain thickness?

Somebody please help me solve the questions.

I‘ve designed a peculiar geometry of resonator laser in FDTD and placed a nano particle in vicinity of that subsequently calculated the optical forces on this particle by MST analyzer eventually found the optical forces enormous in order micro or more . how to refine my work to achieve the correct amount of calculated optical force on particle exclusively in order pico or femto newton?!

Hi everybody

I tried to contact the editorial staff of "Journal of Franklin Institute" via email. Surprisingly, there is no email or contact on their website! Has anyone had a similar experience?

If anyone has their email, I would be grateful if you could share it with me.

I have attached the Error:

CST MICROWAVE STUDIO Error in macro execution, please check: (&HB000ffff) (&H8000ffff) The specified shape does not exist. (posSubMatName=Solid.GetMaterialNameForShape ( posSubName)} OK

Also I had problems in cutting the slot as it was not aligned properly.