Synthesis and nonlinear optical properties of polyurethane composites containing a pyrene derivative

Lijun Gao; Lijun Gao; Lijun Gao; Liuyang Li; Bin Li; Haoyue Yi; Liming Zhou; Xiongwei Qu; Xiongwei Qu; Shaoming Fang; Shaoming Fang

doi:10.1364/AO.483005

Applied Optics
Vol. 62,
Issue 10,
pp. 2493-2500
(2023)
•https://doi.org/10.1364/AO.483005

Synthesis and nonlinear optical properties of polyurethane composites containing a pyrene derivative

Lijun Gao, Liuyang Li, Bin Li, Haoyue Yi, Liming Zhou, Xiongwei Qu, and Shaoming Fang

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Lijun Gao, Liuyang Li, Bin Li, Haoyue Yi, Liming Zhou, Xiongwei Qu, and Shaoming Fang, "Synthesis and nonlinear optical properties of polyurethane composites containing a pyrene derivative," Appl. Opt. 62, 2493-2500 (2023)

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Abstract

The pyrene derivative (PD) was synthesized with pyrene-1-carboxaldehyde and p-aminoazobenzene by a Schiff base reaction. Then the obtained PD was dispersed in polyurethane (PU) prepolymer to prepare polyurethane/pyrene derivative PU/PD materials with good transmittance. The nonlinear optical (NLO) performances of the PD and PU/PD materials were studied by the Z-scan technique under picosecond and femtosecond laser pulses. The PD has reverse saturable absorption (RSA) properties under the excitation of 532 nm 15 ps pulses, 650 and 800 nm 180 fs pulses, and a low optical limiting (OL) threshold (${0.01}\;{\rm{J}}/{{\rm{cm}}^2}$). The PU/PD has a larger RSA coefficient than that of the PD under 532 nm 15 ps pulses. With the enhanced RSA, the PU/PD materials exhibit excellent OL (OL) performance. Good NLO properties, high transparency, and easy processing performances make the PU/PD an excellent choice for use in OL and laser protection fields.

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		Pyrene (%)	C=N (%)	Azobenzene (%)	$E_{H O M O}$ (eV)	$E_{L U M O}$ (eV)	$E_{g a p}$ (eV)
PD	HOMO	68	9	23	−5.34	–	2.85
PD	LUMO	31	16	53	–	−2.49	2.85

	$λ$ ^a (nm)	$β$ ^b $(10^{- 11} m / W)$	$σ$ ^c (GM)	$α_{0}$ ^d $(m^{- 1})$	$ω_{0}$ ^e $(\times 10^{- 6} m))$	$Z_{0}$ ^f $(\times 10^{- 3} m)$	$L_{e f f}$ ^g $(\times 10^{- 3} m)$
PD	532	$0.57 \pm 0.01$	13999	228.22	29.6	5.2	1.9
	650	$0.0244 \pm 0.0005$	508	0.69	28.3	3.9	2
	800	$0.0094 \pm 0.0001$	159	0.69	35.5	4.9	2
PU/PD-0.01% ^h	532	$0.88 \pm 0.01$	22399	46.51	28.3	4.7	2.8
PU/PD-0.03%	532	$1.07 \pm 0.01$	26726	76.64	29.2	5.0	2.7
PU/PD-0.05%	532	$1.11 \pm 0.01$	27998	85.77	28.5	4.8	2.6
PU/PD-0.07%	532	$2.08 \pm 0.02$	53451	152.15	28.5	4.8	2.4
PU/PD-0.09%	532	$2.22 \pm 0.02$	55996	163.64	28.5	4.8	2.4

		Pyrene (%)	C=N (%)	Azobenzene (%)	$E_{H O M O}$ (eV)	$E_{L U M O}$ (eV)	$E_{g a p}$ (eV)
PD	HOMO	68	9	23	−5.34	–	2.85
PD	LUMO	31	16	53	–	−2.49	2.85

	$λ$ ^a (nm)	$β$ ^b $(10^{- 11} m / W)$	$σ$ ^c (GM)	$α_{0}$ ^d $(m^{- 1})$	$ω_{0}$ ^e $(\times 10^{- 6} m))$	$Z_{0}$ ^f $(\times 10^{- 3} m)$	$L_{e f f}$ ^g $(\times 10^{- 3} m)$
PD	532	$0.57 \pm 0.01$	13999	228.22	29.6	5.2	1.9
	650	$0.0244 \pm 0.0005$	508	0.69	28.3	3.9	2
	800	$0.0094 \pm 0.0001$	159	0.69	35.5	4.9	2
PU/PD-0.01% ^h	532	$0.88 \pm 0.01$	22399	46.51	28.3	4.7	2.8
PU/PD-0.03%	532	$1.07 \pm 0.01$	26726	76.64	29.2	5.0	2.7
PU/PD-0.05%	532	$1.11 \pm 0.01$	27998	85.77	28.5	4.8	2.6
PU/PD-0.07%	532	$2.08 \pm 0.02$	53451	152.15	28.5	4.8	2.4
PU/PD-0.09%	532	$2.22 \pm 0.02$	55996	163.64	28.5	4.8	2.4

Abstract

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Applied Optics