Difference between EAM modulator and photodiode ?

13 December 2018 0 5K Report

Hi , I am a little confused about this two device. For EAM, it is worked at a reverse bias. However, the working condition is similar for photodiode. My question is why there are electron-hole pair generated in EAM? What is difference for this two devices?

Badges
Science topic

More Yanfei Bai's questions See All

Does the first semicircle represent contact resistance, and what is the reason for its generation?

My research topic is the corrosion of gray cast iron in methanol. EIS measurements were conducted at open circuit potentials (Eoc) using a sinusoidal signal with the amplitude of 10 mV from 100...

05 June 2024 6,891 2 View

Do the atomic orbitals of the same atom have the same energy under different chemical conditions?

Do the atomic orbitals of the same atom have the same energy under different chemical conditions? In other words, can atomic orbital energy be changed by external changes? For example, does...

22 April 2024 6,055 1 View

What properties determine the ability of metal atoms to adsorb and activate different small molecules (such as CO2, N2)?

Different metals have different adsorption and activation abilities for different small molecules (such as N2, CO2). What are the properties of the met

16 April 2024 836 2 View

What properties determine the ability of different valence metals to adsorb and activate small molecules?

What properties determine the ability of different valence metals to adsorb and activate small molecules (such as CO2, N2)?

16 April 2024 9,282 4 View

About MIL-125 XRD pattern ?

I tried to synthesise different morphologies by adjusting the ratio of DMF to methanol. When the DMF and ethanol ratios were 9:1 and 7:3, the XRD images of the samples showed a diffraction peak...

08 April 2024 4,336 4 View

Why the Mg element is rarely found in high-entropy alloy designs?

A very interesting phenomenon, for the existing high-entropy alloy design, the use of more elements are Fe, Ni, Co, Cr, Mn, Al, V, Ti, Zr, etc. However, the Mg element is rarely found in HEAs....

09 January 2024 2,599 4 View

Inquiry Regarding SWAT Model Operation for Pesticide Concentration Simulation?

I am a researcher at the Sun Yat-sen University, China. I am currently working on a research project that involves the simulation of pesticide concentrations in surface water using the SWAT model....

08 January 2024 1,237 0 View

In ICP-OES, how the characteristics of particle, or its interaction with the plasma, will influence the signal?

I am wondering the possible influencing mechanisms of plasma on particles. Thanks for your attention : )

30 August 2023 5,799 0 View

How can I use an ANN to predict land use?

How can I train an ANN using current raster data (population, precipitation, DEM, land use) and use this model to predict future land use based on upcoming raster data (population, precipitation,...

23 August 2023 6,487 1 View

Change the pH of my PDB which contains modified residue(acetylated lysine) and ZN?

The pH of my crystal PDB is 5.5, but I would like to perform a simulation under pH=7. I used PDB2PQR to change the protonation state, but because my structure contains a modified residue...

16 July 2023 523 0 View

Are air moisture harvesting technologies effective in combating desertification?

Air moisture harvesting Air water collection devices

06 August 2024 5,473 2 View

What can i do to find the right topic for my thesis?

i am facing the difficulty to find the right and latest topic for my thesis. i searched and read hundreds of articles but i couldn't find the right one. what can i do I'm really confused.

02 August 2024 1,323 8 View

What is the best sampling strategy?

I am conducting a qualitative study that uses interviews to investigate the perceptions of teachers about a particular leadership practice and I am focusing on 3 schools which have a total number...

01 August 2024 8,457 10 View

Best mask design for metal deposition aiming build a Perovskite solar cell device?

What types of mask designs for metal deposition, to be used in a PVD system, are best suited for perovskite-based solar cells?

31 July 2024 4,835 3 View

Is it possible to do transient simulation in HFSS in presence of magnetic biasing?

I have designed magnetic material with different biasing conditions in HFSS. Now I want to give an RF AC signal and do a transient simulation in HFSS. Is it possible to do in HFSS? Please help me...

24 July 2024 9,319 5 View

How are clinical and environmental yeast/fungal strains stored usually in mycology laboratories?

I understand a glycerol stock for long-term preservation would be ideal, but how are working cultures generally stored? Mainly concerning Candida spp. isolates. A few references mention that they...

22 July 2024 6,592 3 View

ANCOVA for between-subject design?

Hi, I will run an experiment where reaction time will be the dependent variable, tested in 2 conditions (with the same participants). I want to control for a confounding variable (individual...

20 July 2024 1,943 1 View

I am working on III-V based tandem solar cells.Can anyone explain that solar cells work under forward or reverse biased conditions?

I want to know that n-doped side of solar cell is connected with positive or negative electrode.

20 July 2024 1,348 2 View

Sample size for qualitative study?

I am working on scale development in behavioral finance by undertaking a mixed-method approach using the exploratory sequential design. The phenomenon has diverse meanings in existing literature...

20 July 2024 9,153 11 View

Environmental Impact of the Organic Manure Production Unit?

Does anyone have any case studies on the Environmental Impact of Organic Manure Production Unit? Environmental Impact of a Organic Manure Production Unit Facility is what I studied but...

16 July 2024 5,400 6 View