2008
DOI: 10.1364/oe.16.019535
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Lasing from InGaP quantum dots in a spin-coated flexible microcavity

Abstract: We report the realization of a mechanically flexible microcavity laser emitting at 657 nm using spin coating. These optically pumped vertical cavity surface emitting lasers use InGaP colloidal quantum dots as the active medium and alternating polymer layers of different refractive indices as the Bragg mirrors. Results of photoluminescence measurements indicating enhancement in spontaneous emission are presented. We also demonstrate the possibility of peeling the device off the substrate yielding a flexible str… Show more

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Cited by 52 publications
(58 citation statements)
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References 37 publications
(47 reference statements)
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“…The few reports of lasing using more sustainable gain materials include InP/ZnS in a liquid crystal grating cavity 213 and InGaP/ZnS in a VCSEL cavity. 226 Although the SE threshold shown in for InP/ZnS NCs is significantly higher than other NCs at similar wavelengths (note the log-log scale), this work predated more recent improvements in the synthesis of InP NCs. Given the substantial improvements in the past few years for InP, there are good prospects for its use as a gain medium.…”
Section: Lasersmentioning
confidence: 93%
“…The few reports of lasing using more sustainable gain materials include InP/ZnS in a liquid crystal grating cavity 213 and InGaP/ZnS in a VCSEL cavity. 226 Although the SE threshold shown in for InP/ZnS NCs is significantly higher than other NCs at similar wavelengths (note the log-log scale), this work predated more recent improvements in the synthesis of InP NCs. Given the substantial improvements in the past few years for InP, there are good prospects for its use as a gain medium.…”
Section: Lasersmentioning
confidence: 93%
“…In spite of several reports of using NQDs in different microcavities (see, e.g, references in [14,19]), there are only a few reports of the influence of a CLC microcavity environment on NQD fluorescence. It is reported [14,15,18] that circularly polarized NQD fluorescence of definite handedness is due to microcavity chirality.…”
mentioning
confidence: 99%
“…In spite of several reports of using NQDs in different microcavities, see, e.g., references in papers [14,19], there are only a few reports of the influence of a CLC microcavity environment on NQD fluorescence. Refs.…”
Section: Quantum Dot Fluorescence In Glassy Cholestericmentioning
confidence: 99%