Ambar Shukla

6 Questions 3 Answers 0 Followers

Questions related from Ambar Shukla

How to simulate gated PQAR circuit for SPAD?

I would like to simulate a passive-quenching active-reset circuit for single-photon avalanche diodes (SPAD) for a project. Is there any SPAD model available online that I can import for the...

10 November 2023 5,888 1 View

Few doubts regarding waveguide simulation in Mode(Lumerical) for Mach Zehnder modulator?

I am trying to simulate LNOI waveguide ( lithium niobate waveguide on SiO2). During simulation I found that as I increase the core size (0.5um to 0.9um), Neff increases. In commercial available...

28 April 2022 6,920 1 View

Need some clarification regarding Mach-Zehnder modulator?

I have following doubts: 1) What is the state of the art technology to realize Mach-Zehnder modulator? Is it to realize it on thin-film lithium niobate? If yes, then why not many commercial...

12 April 2022 3,964 0 View

Need some advice to optimize the design of multi mode buried waveguide?

Hi, I am new to this and trying to design a waveguide at 850 nm. So I simulated the structure in Lumerical for different core sizes. These three graphs(attached) are the results I got for mode 1(...

14 February 2022 6,023 3 View

Need some clarification on Surface plasmon, SPP, SPR and relation among dipoles, SPP and SPR?

Hello, I just started reading about plasmonics and I have few doubts. I googled a lot but couldn't find concrete answer. Please correct me if I'm wrong: Plasmon is quantum of plasma oscillation:...

10 June 2021 2,411 3 View

As in GaN after annealing the quality of gold markers degrades, how can I keep my markers quality same as before or improve it after annealing ?

As in GaN after annealing the quality of gold markers degrades, how can I keep my markers quality same as before or improve it after annealing process?

12 October 2018 3,433 1 View