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Infochemistry: Encoding Information as Optical Pulses Using Droplets in a Microfluidic Device

Hashimoto, Michinao and Feng, Ji and York, Roger L. and Ellerbee, Audrey K. and Morrison, Greg and Thomas III, Samuel W. and Mahadevan, L. and Whitesides, George M. Infochemistry: Encoding Information as Optical Pulses Using Droplets in a Microfluidic Device. Journal of the American Chemical Society, 131 (34). pp. 12420-12429. ISSN 0002-7863 (2009)

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This article describes a new procedure for generating and transmitting a message—a sequence of optical pulses—by aligning a mask (an opaque sheet containing transparent “windows”) below a microfluidic channel in which flows an opaque continuous fluid containing transparent droplets. The optical mask encodes the message as a unique sequence of windows that can transmit or block light; the flow of transparent droplets in the channel converts this message into a sequence of optical pulses. The properties of the windows on the mask (e.g., their size, wavelength of transmittance, orientation of polarization) determine the information carried in these optical pulses (e.g., intensity, color, polarization). The structure of a transmitted signal depends on the number and spacing of droplets in the channel. Fourier transformation can deconvolve superimposed signals created by the flow of multiple droplets into the message that a single droplet would transmit. The research described in this contribution explores a new field at the intersection of chemistry, materials science, and information technology: infochemistry.

Item Type: Article
Identification Number: 10.1021/ja904788m
Subjects: Q Science > QD Chemistry
Research Area: Economics and Institutional Change
Depositing User: Ms T. Iannizzi
Date Deposited: 04 Oct 2013 09:45
Last Modified: 04 Oct 2013 09:45
URI: http://eprints.imtlucca.it/id/eprint/1819

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