Abstract
Two-photon excited fluorescence (TPEF) under continuous-wave excitation from silicon particles produced by a pulsed laser is investigated. Spectra and images of TPEF from silicon particles are studied under different excitation intensities and operation modes (continuous wave or pulse). It is found that the photoluminescence depends superlinearly on the excitation intensity and that the spectral shape and peaks vary with different silicon particles. The above phenomena show the nonlinear behavior of TPEF from silicon particles, and stimulated emission is a possible process.
| Original language | English |
|---|---|
| Article number | 251105 |
| Journal | Applied Physics Letters |
| Volume | 99 |
| Issue number | 25 |
| DOIs | |
| Publication status | Published - Dec 19 2011 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
Cite this
Nonlinear behavior of photoluminescence from silicon particles under two-photon excitation. / Xu, Xingsheng; Yokoyama, Shiyoshi.
In: Applied Physics Letters, Vol. 99, No. 25, 251105, 19.12.2011.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Nonlinear behavior of photoluminescence from silicon particles under two-photon excitation
AU - Xu, Xingsheng
AU - Yokoyama, Shiyoshi
PY - 2011/12/19
Y1 - 2011/12/19
N2 - Two-photon excited fluorescence (TPEF) under continuous-wave excitation from silicon particles produced by a pulsed laser is investigated. Spectra and images of TPEF from silicon particles are studied under different excitation intensities and operation modes (continuous wave or pulse). It is found that the photoluminescence depends superlinearly on the excitation intensity and that the spectral shape and peaks vary with different silicon particles. The above phenomena show the nonlinear behavior of TPEF from silicon particles, and stimulated emission is a possible process.
AB - Two-photon excited fluorescence (TPEF) under continuous-wave excitation from silicon particles produced by a pulsed laser is investigated. Spectra and images of TPEF from silicon particles are studied under different excitation intensities and operation modes (continuous wave or pulse). It is found that the photoluminescence depends superlinearly on the excitation intensity and that the spectral shape and peaks vary with different silicon particles. The above phenomena show the nonlinear behavior of TPEF from silicon particles, and stimulated emission is a possible process.
UR - http://www.scopus.com/inward/record.url?scp=84555202857&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84555202857&partnerID=8YFLogxK
U2 - 10.1063/1.3665042
DO - 10.1063/1.3665042
M3 - Article
AN - SCOPUS:84555202857
VL - 99
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 25
M1 - 251105
ER -