scholarly journals Optical limiting and excited-state absorption in fullerene solutions and doped glasses

1995 ◽  
Author(s):  
Duncan W. McBranch ◽  
Laura B. Smilowitz ◽  
Victor I. Klimov ◽  
Aaron C. Koskelo ◽  
Jeanne M. Robinson ◽  
...  
Keyword(s):  
Excited State ◽  
Excited State Absorption ◽  
Optical Limiting ◽  
Doped Glasses

Excited state absorption assisted optical limiting action of Fe decorated γ-BBO nanorods

2019 ◽  
Vol 237 ◽  
pp. 121827 ◽  
Author(s):  
C. Babeela ◽  
N.K. Siji Narendran ◽  
Mehboobali Pannipara ◽  
Abdullah G. Al-Sehemi ◽  
T.C. Sabari Girisun
Keyword(s):  
Excited State ◽  
Excited State Absorption ◽  
Optical Limiting

Broadband optical limiting based on excited state absorption in Pt:ethynyl

2000 ◽  
Vol 88 (4) ◽  
pp. 1726-1732 ◽  
Author(s):  
J. Staromlynska ◽  
T. J. McKay ◽  
P. Wilson
Keyword(s):  
Excited State ◽  
Excited State Absorption ◽  
Optical Limiting

Excited State Absorption and Cross Sections for Er-Doped Glasses

1989 ◽  
Vol 172 ◽  
Author(s):  
S. Zemon ◽  
G. Lambert ◽  
W. J. Miniscalco ◽  
L. J. Andrews ◽  
B. T. Hall
Keyword(s):  
Excited State ◽  
Excited States ◽  
Cross Sections ◽  
Ground State ◽  
Excited State Absorption ◽  
Fiber Amplifiers ◽  
Oscillator Strengths ◽  
Ground State Absorption ◽  
Doped Glasses ◽  
Er Doped

AbstractPump-excited-state-absorption (ESA) measurements on Er3+-doped phosphates, fluorophosphates, and silicate bulk glasses indicate that ESA cross sections are approximately equal to ground state absorption (GSA) cross sections in the 800-nm band. The oscillator strengths of the ESA and GSA bands are also approximately equal, in qualitative agreement with Judd-Ofelt calculations. Fluorozirconate samples were found to have substantial populations in the upper excited states for the measurement conditions used and ESA transitions originating from four excited states were identified. Fluorozirconate fiber amplifiers and lasers at 1.55 μm, therefore, would have decreased efficiency for 800-nm pumping.

Excited-state-absorption cross sections and amplifier modeling in the 1300-nm region for Nd-doped glasses

1992 ◽  
Vol 4 (3) ◽  
pp. 244-247 ◽  
Author(s):  
S. Zemon ◽  
B. Pedersen ◽  
G. Lambert ◽  
W.J. Miniscalco ◽  
B.T. Hall ◽  
...  
Keyword(s):  
Excited State ◽  
Cross Sections ◽  
Excited State Absorption ◽  
Absorption Cross ◽  
Doped Glasses

Tunable emission and excited state absorption induced optical limiting in Tb2(MoO4)3: Sm3+/Eu3+ nanophosphors

2016 ◽  
Vol 62 ◽  
pp. 110-118 ◽  
Author(s):  
Kamal P. Mani ◽  
Perumbilavil Sreekanth ◽  
G. Vimal ◽  
P.R. Biju ◽  
N.V. Unnikrishnan ◽  
...  
Keyword(s):  
Excited State ◽  
Excited State Absorption ◽  
Optical Limiting ◽  
Tunable Emission

Excited-State-Absorption Cross Sections and Amplifier Modeling in the 1300-nm Region for Nd-Doped Glasses

1991 ◽  
Vol 244 ◽  
Author(s):  
S. Zemon ◽  
B. Pedersen ◽  
G. Lambert ◽  
W. J. Miniscalco ◽  
B. T. Hall ◽  
...  
Keyword(s):  
Excited State ◽  
Cross Sections ◽  
Excited State Absorption ◽  
Fiber Amplifier ◽  
Stimulated Emission ◽  
Amplifier Model ◽  
Important Region ◽  
Host Materials ◽  
Doped Glasses ◽  
The Cost

ABSTRACTThe performance of Nd3+-doped fiber amplifiers is limited by strong excited state absorption (ESA) of the signal, even for fluorozirconate glasses where ESA prevents the important region below 1320 nm from being used. To quantify this and explore alternative host materials, ESA and stimulated-emission cross sections have been measured for a representative group of glass compositions. These parameters have been used in an accurate, fiber-amplifier model to provide the first quantitative comparisons of performance for Nd3+-doped glasses in the 1300-nm band as a function of host. A high-fluorine fluorophosphate is predicted to extend the short-wavelength boundary of the gain spectrum to 1295 nm but only at reduced gain levels and at the cost of having lower gains at longer wavelengths than fluorozirconates. A substantial increase in small-signal gain is predicted if the amplified spontaneous emission for the 1050-nm band is suppressed.

A STUDY OF PHOTOACOUSTIC EFFECTS AND OPTICAL LIMITING IN THE SOLUTION OF C60 IN TOLUENE

1996 ◽  
Vol 10 (01n02) ◽  
pp. 61-67 ◽  
Author(s):  
RIJU C. ISSAC ◽  
C.V. BINDHU ◽  
S.S. HARILAL ◽  
GEETHA K. VARIER ◽  
V.P.N. NAMPOORI ◽  
...  
Keyword(s):  
Excited State ◽  
Nd:Yag Laser ◽  
Excited State Absorption ◽  
Optical Limiting ◽  
Nonlinear Scattering ◽  
Dominant Process ◽  
532 Nm

Pulsed photoacoustic studies in solution of C 60 in toluene have been made using the 532 nm radiation from a frequency doubled Nd:YAG laser. Though C 60 is found to exhibit the phenomenon of optical limiting, the results on photoacoustic measurements do not give any indication of multiphoton transitions as suggested in some of the earlier works. Results of photoacoustic measurements show that excited state absorption is the dominant process responsible for optical limiting while phenomena like nonlinear scattering may contribute to a lesser extent.

Excited State Absorption and Optical Limiting in Solutions of Metallophthalocyanines

1991 ◽  
pp. 369-382 ◽  
Author(s):  
J. W. Perry ◽  
L. R. Khundkar ◽  
D. R. Coulter ◽  
D. Alvarez ◽  
S. R. Marder ◽  
...  
Keyword(s):  
Excited State ◽  
Excited State Absorption ◽  
Optical Limiting
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