Nanogel Nanosecond Photonic Crystal Optical Switching

Chad E. Reese, Alexander V. Mikhonin, Marta Kamenjicki, Alexander Tikhonov, Sanford A. Asher

Research output: Contribution to journalArticle

258 Citations (Scopus)

Abstract

We developed a robust nanosecond photonic crystal switching material by using poly(N-isopropylacrylamide) (PNIPAM) nanogel colloidal particles that self-assemble into crystalline colloidal arrays (CCAs). The CCA was polymerized into a loose-knit hydrogel which permits the individual embedded nanogel PNIPAM particles to coherently and synchronously undergo their thermally induced volume phase transitions. A laser T-jump from 30 to 35°C actuates the nanogel particle shrinkage; the resulting increased diffraction decreases light transmission within 900 ns. Additional transmission decreases occur with characteristic times of 19 and 130 ns. Individual NIPAM sphere volume switching occurs in the ∼100 ns time regime. These nanogel nanosecond phenomena may be useful in the design of fast photonic crystal switches and optical limiting materials. Smaller nanogels will show even faster volume phase transitions.

Original languageEnglish
Pages (from-to)1493-1496
Number of pages4
JournalJournal of the American Chemical Society
Volume126
Issue number5
DOIs
Publication statusPublished - Feb 11 2004
Externally publishedYes

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Optics and Photonics
Photonic crystals
Phase transitions
Crystalline materials
Wave transmission
Light transmission
Hydrogels
Particles (particulate matter)
Phase Transition
Diffraction
Switches
Lasers
Hydrogel
NanoGel
Light

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Nanogel Nanosecond Photonic Crystal Optical Switching. / Reese, Chad E.; Mikhonin, Alexander V.; Kamenjicki, Marta; Tikhonov, Alexander; Asher, Sanford A.

In: Journal of the American Chemical Society, Vol. 126, No. 5, 11.02.2004, p. 1493-1496.

Research output: Contribution to journalArticle

Reese, CE, Mikhonin, AV, Kamenjicki, M, Tikhonov, A & Asher, SA 2004, 'Nanogel Nanosecond Photonic Crystal Optical Switching', Journal of the American Chemical Society, vol. 126, no. 5, pp. 1493-1496. https://doi.org/10.1021/ja037118a
Reese, Chad E. ; Mikhonin, Alexander V. ; Kamenjicki, Marta ; Tikhonov, Alexander ; Asher, Sanford A. / Nanogel Nanosecond Photonic Crystal Optical Switching. In: Journal of the American Chemical Society. 2004 ; Vol. 126, No. 5. pp. 1493-1496.
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