Polymer-coated vertical-cavity surface-emitting laser diode vapor sensor
Publication: Research - peer-review › Conference article – Annual report year: 2010
We report a new method for monitoring vapor concentration of volatile organic compounds using a vertical-cavity surface-emitting laser (VCSEL). The VCSEL is coated with a polymer thin film on the top distributed Bragg reflector (DBR). The analyte absorption is transduced to the electrical domain through modulation of the VCSEL output power as the polymer swell. We have investigated the responsivity of this technique experimentally using a plasma polymerized polystyrene coating and explain the results theoretically as a reflectance modulation of the top DBR.
| Original language | English |
|---|---|
| Journal | Proceedings of SPIE, the International Society for Optical Engineering |
| Publication date | 2010 |
| Volume | 7615 |
| Pages | 76150A |
| ISSN | 0277-786X |
| DOIs | |
| State | Published |
Conference
| Conference | Vertical-Cavity Surface-Emitting Lasers |
|---|---|
| Number | 14 |
| City | San Francisco, CA, USA |
| Period | 01-01-10 → … |
Bibliographical note
Copyright 2010 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
| Citations | Web of Science® Times Cited: 1 |
|---|
Keywords
- Vertical-cavity surface-emitting laser, Gas sensing, Functionalization, Sensor polymer, Volatile organic compound, Vapor sensor
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