Multi channel fabry perot etalon
Sponsored Links
This presentation is the property of its rightful owner.
1 / 31

Multi-Channel Fabry-Perot Etalon PowerPoint PPT Presentation


  • 135 Views
  • Uploaded on
  • Presentation posted in: General

Multi-Channel Fabry-Perot Etalon. E. Dagher , R. Liu, J. Vaillancourt. Outline. Objectives Division of Work Background Mirror Fabrication Cavity Fabrication Biomaterials. Sample Preparation Test Procedure Results Timeline Future Work Conclusion. Objective.

Download Presentation

Multi-Channel Fabry-Perot Etalon

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Multi-Channel Fabry-Perot Etalon

E. Dagher, R. Liu, J. Vaillancourt


Outline

  • Objectives

  • Division of Work

  • Background

  • Mirror Fabrication

  • Cavity Fabrication

  • Biomaterials

  • Sample Preparation

  • Test Procedure

  • Results

  • Timeline

  • Future Work

  • Conclusion


Objective

To design and build a proof of concept experiment for a novel high sensitivity biosensor based on a Fabry-Perot cavity


Division of Work

  • Initial Design Simulations and Evaluation

    • Sims Approach Research and Evaluation

    • MS Excel

  • Biomaterial Sample Prep

Rui:

Jarrod:

  • Fabricate device for testing

    • Obtain materials

    • Assemble the prototypes

  • Build test setup

Emile:

  • Write test programs to acquire data

    • Control instruments

    • Demodulate the signal

    • Graph results

    • Automate the testing/graphing procedure


R=.3

R=.9

R=.5

λm+1

λm-1

λm

  • Important Properties of a F-P Cavity:

  • Free Spectral Range:

  • Finesse:

  • Resonant Condition: where m=1,2,3 …

Background


Glass

Glass

Glass

Glass

Glass

Glass

Glass

Glass

Glass

Glass

Air

Air

Mirrors

Glass

Glass

Glass

Glass

Glass

Glass

BIO Material


Mirror

Mirror

Mirror

Mirror

Glass

Glass

Glass

Glass

Glass

Glass

Glass

Glass

Glass

Glass

Air

Air

Air

Air

Glass

Glass

Glass

Glass

BIO Material


Mirror Fabrication

  • Mirrors will be formed using AJA 7000 Sputtering System

    • Many metal coatings available

      • Au, Ag, Al, Ti, Ni, Cr

      • Low pressure for high quality films

      • Precise control of the thickness


Mirror Fabrication

Glass

Titanium

Gold


Mirror Testing

Transmission @ 1.55µm

Glass: 87%

10Å Ti / 40Å Au: 47%

10Å Ti / 70Å Au: 18%

10Å Ti / 40Å Au

10Å Ti / 70Å Au


Cavity Fabrication


Cavity Fabrication


Cavity Fabrication


Verification of Cavity


Cavity Fabrication

  • Reason for Failure:

  • Only 150Å of gold

  • Missing the “sticking layer”

  • Solution:

  • Use a sticking layer

  • Can be Ni, Ti, Cr


Biomaterials

  • Biomaterials in cavities:

    • Protein G

    • IgG

    • Fab

  • Same Concentration for all experimental setups


Sample Preperation

2

1


Coating Biomaterials

Glass

Protein G

IgG

Protein G

IgG

Glass

Gold


Cavity Setup


Testing Block Diagram

GPIB/IEEE Cable

PC/Matlab

Single Mode Fiber

Micron Optics si720

Optical Sensing Analyzer

Detected light

Power Input

Test Setup


Matlab GUI Interface

Start

Folder/File location to save data

Start/Stop Wavelengths

Figure


Test Automation Block Diagram

Run Matlab GUI

Locate File/Folder Location

to save data

Start/Stop Wavelengths

-Set the Start/Stop Wavelengths

on Optical Analyzer

-Start Sweeping through wavelengths

-Get data results and save them

in specified folder

Start

Show Results


Timeline


Future Work

1. Multi-channel Fabry-Perot cavity waveguide structure.

Mirrored Ends

Multiple Channels

Silicon Waveguide

Silicon Substrate

Silicon substrate


Future Work

1. Multi-channel Fabry-Perot cavity waveguide structure

2. Integrated with microfluidics

Biomaterials

Fluid Cavity

Polymer

Cap


Waveguide with microfluidics

  • Benefits:

  • Reduced device size

  • Can create more channels for biomaterials

  • Enables mass production

  • Uniform device size

Biomaterials


Conclusion

  • Fabrication of Cavities is feasible

  • Goal has been reached

  • Introduce mirror reflectivity as a variable when testing


  • Login