Abstract

Multicolor lasing and dynamic color-tuning in a wide spectrum range are challenging to realize but critically important in many areas of technology and daily life, such as general lighting, display, multicolor detection, and multiband communication. By exploring nanoscale growth and manipulation, we have demonstrated the first active dynamical color control of multicolor lasing, continuously tunable between red and green colors separated by 107 nm in wavelength. This is achieved in a purposely engineered single CdSSe alloy nanowire with composition varied along the wire axis. By looping the wide-gap end of the alloy nanowire through nanoscale manipulation, two largely independent (only weakly coupled) laser cavities are formed respectively for the green and red color modes. Our approach simultaneously overcomes the two fundamental challenges for multicolor lasing in material growth and cavity design. Such multicolor lasing and continuous color tuning in a wide spectral range represents a new paradigm shift and would eventually enable color-by-design and white-color lasers for lighting, illumination, and many other applications.

Original languageEnglish (US)
Pages (from-to)4945-4950
Number of pages6
JournalNano Letters
Volume13
Issue number10
DOIs
StatePublished - 2013

Fingerprint

Nanowires
lasing
manipulators
nanowires
Tuning
tuning
Color
color
Lighting
illuminating
Laser resonators
laser cavities
communication
illumination
Display devices
wire
Wire
Wavelength
cavities
Lasers

Keywords

  • alloy composition-graded nanowire
  • Cadmium sulfide selenide
  • dynamic color tuning
  • multicolor laser
  • nanowire manipulation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering

Cite this

Dynamical color-controllable lasing with extremely wide tuning range from red to green in a single alloy nanowire using nanoscale manipulation. / Liu, Zhicheng; Yin, Leijun; Ning, Hao; Yang, Zongyin; Tong, Limin; Ning, Cun-Zheng.

In: Nano Letters, Vol. 13, No. 10, 2013, p. 4945-4950.

Research output: Contribution to journalArticle

Liu, Zhicheng ; Yin, Leijun ; Ning, Hao ; Yang, Zongyin ; Tong, Limin ; Ning, Cun-Zheng. / Dynamical color-controllable lasing with extremely wide tuning range from red to green in a single alloy nanowire using nanoscale manipulation. In: Nano Letters. 2013 ; Vol. 13, No. 10. pp. 4945-4950.
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