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Optofluidic lasers with a single molecular layer of gain.

ABSTRACT: We achieve optofluidic lasers with a single molecular layer of gain, in which green fluorescent protein, dye-labeled bovine serum albumin, and dye-labeled DNA, are used as the gain medium and attached to the surface of a ring resonator via surface immobilization biochemical methods. It is estimated that the surface density of the gain molecules is on the order of 10(12) cm(-2), sufficient for lasing under pulsed optical excitation. It is further shown that the optofluidic laser can be tuned by energy transfer mechanisms through biomolecular interactions. This work not only opens a door to novel photonic devices that can be controlled at the level of a single molecular layer but also provides a promising sensing platform to analyze biochemical processes at the solid-liquid interface.

SUBMITTER: Chen Q

PROVIDER: S-EPMC4229433 | biostudies-literature | 2014 Dec

REPOSITORIES: biostudies-literature

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Optofluidic lasers with a single molecular layer of gain.

Chen Qiushu Q Ritt Michael M Sivaramakrishnan Sivaraj S Sun Yuze Y Fan Xudong X

Lab on a chip 20141014 24

We achieve optofluidic lasers with a single molecular layer of gain, in which green fluorescent protein, dye-labeled bovine serum albumin, and dye-labeled DNA, are used as the gain medium and attached to the surface of a ring resonator via surface immobilization biochemical methods. It is estimated that the surface density of the gain molecules is on the order of 10(12) cm(-2), sufficient for lasing under pulsed optical excitation. It is further shown that the optofluidic laser can be tuned by e ...[more]

PMID: 25312306

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