Moreau, Virginie and Colombelli, Raffaele and Perahia, Raviv and Painter, Oskar and Wilson, Luke R. and Krysa, Audrey B. (2008) Proof-of-principle of surface detection with air-guided quantum cascade lasers. Optics Express, 16 (9). pp. 6387-6396. ISSN 1094-4087. https://resolver.caltech.edu/CaltechAUTHORS:MORoe08
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Abstract
We report a proof-of-principle of surface detection with air-guided quantum cascade lasers. Laser ridges were designed to exhibit an evanescent electromagnetic field on their top surface that can interact with material or liquids deposited on the device. We employ photoresist and common solvents to provide a demonstration of the sensor setup. We observed spectral as well as threshold currents changes as a function of the deposited material absorption curve. A simple model, supplemented by 2D numerical finite element method simulations, allows one to explain and correctly predict the experimental results.
| Item Type: | Article | ||||||||
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| Additional Information: | © 2008 Optical Society of America. Original Manuscript: February 12, 2008. Manuscript Accepted: April 5, 2008. Revised Manuscript: April 1, 2008. Published: April 21, 2008. This work was conducted as part of a EURYI scheme award (www.esf.org/euryi). The Caltech portion of this work was supported by the DARPA Center for Optofluidics (http://www.optofluidics.caltech.edu). This work is supported by the UK Engineering and Physical Sciences Research Council (EPSRC) and by the Royal Society. The device fabrication has been performed at the nano-center “Centrale Technologique Minerve” at the Institut d’Electronique Fondamentale. | ||||||||
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| Subject Keywords: | Semiconductor lasers; optical resonators; surface plasmons | ||||||||
| Issue or Number: | 9 | ||||||||
| Record Number: | CaltechAUTHORS:MORoe08 | ||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:MORoe08 | ||||||||
| Official Citation: | V. Moreau, R. Colombelli, R. Perahia, O. Painter, L. R. Wilson, and A. B. Krysa, "Proof-of-principle of surface detection with air-guided quantum cascade lasers," Opt. Express 16, 6387-6396 (2008) http://www.opticsinfobase.org/abstract.cfm?URI=oe-16-9-6387 | ||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||
| ID Code: | 10664 | ||||||||
| Collection: | CaltechAUTHORS | ||||||||
| Deposited By: | Archive Administrator | ||||||||
| Deposited On: | 30 May 2008 | ||||||||
| Last Modified: | 03 Oct 2019 00:11 |
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