Optimization of Light Absorption and Scattering Properties of Gold Nanospheroids

Xiayiding Yakupu; Paerhatijiang Tuersun; Panpan Wu

doi:10.3788/AOS202040.0429001

Acta Optica Sinica, Volume. 40, Issue 4, 0429001(2020)

Optimization of Light Absorption and Scattering Properties of Gold Nanospheroids

Xiayiding Yakupu^1,2, Paerhatijiang Tuersun^1,2、*, and Panpan Wu^1,2

Author Affiliations

¹School of Physics and Electronic Engineering, Xinjiang Normal University, Urumqi, Xinjiang 830054, China

²Key Laboratory of Novel Light Source and Micro/Nano-Optics, Xinjiang Normal University, Urumqi, Xinjiang 830054, China

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Figures & Tables(13)

Fig. 1. Geometric model of gold nanospheroid

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Fig. 2. Effect of major semi-axis on spectra of volume absorption coefficient and volume scattering coefficient of gold nanospheroids. (a)Volume absorption coefficient α_abs; (b) volume scattering coefficient α_sca

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Fig. 3. Effect of minor semi-axis on spectra of volume absorption coefficient and volume scattering coefficient of gold nanospheroids. (a)Volume absorption coefficient α_abs; (b) volume scattering coefficient α_sca

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Fig. 4. Position and intensity of absorption resonance peak of gold nanospheroids varying with minor semi-axis. (a) Position of absorption resonance peak; (b) intensity of absorption resonance peak

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Fig. 5. Position and intensity of absorption resonance peak of gold nanospheroids varying with major semi-axis. (a) Position of absorption resonance peak; (b) intensity of absorption resonance peak

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Fig. 6. Volume absorption coefficient of gold nanospheroides at wavelength of 800 nm varying with minor semi-axis and major semi-axis. (a) Step size of 1 nm; (b) step size of 0.1 nm

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Fig. 7. Position and intensity of scattering resonance peak of gold nanospheroids varying with minor semi-axis. (a) Position of scattering resonance peak; (b) intensity of scattering resonance peak

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Fig. 8. Position and intensity of scattering resonance peak of gold nanospheroids varying with major semi-axis. (a) Position of scattering resonance peak; (b) intensity of scattering resonance peak

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Fig. 9. Volume scattering coefficient of gold nanospheroids at wavelength of 830 nm varying with minor semi-axis and major semi-axis. (a) Step size of 1 nm; (b) step size of 0.1 nm

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Table 1. Optimization results of volume absorption coefficient α_abs,max, minor semi-axis a_opt,and major semi-axis c_opt of gold nanospheroids
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Table 1. Optimization results of volume absorption coefficient α_abs,max, minor semi-axis a_opt,and major semi-axis c_opt of gold nanospheroids
λ / nm α_abs,max / μm^-1 a_opt / nm c_opt / nm
800 358.45 8.4 32.1
808 362.90 8.3 32.3
820 370.49 8.3 33.2
1064 454.32 7.9 48.5

Table 2. Optimized results of absorption characteristicsof gold nanospheroids and gold nanoshells

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Table 2. Optimized results of absorption characteristicsof gold nanospheroids and gold nanoshells

Object	Parameter	Value
Object	Parameter	λ=800 nm	λ=808 nm	λ=820 nm	λ=1064 nm
	α_abs,max/μm^-1	358.45	362.90	370.49	454.32
Gold nanospheroid	a_opt/ nm	8.4	8.3	8.3	7.9
	c_opt/nm	32.1	32.3	33.2	48.5
	α_abs,max /μm^-1	112.03	109.64	106.28	59.68
Gold nanoshell	R_{1, opt}/ nm	29.2	29.3	30.5	46.0
	t_opt /nm	3.8	3.7	3.7	3.0

Table 3. Optimization results of volume scattering coefficient α_sca,max, minor semi-axis a_opt, and major semi-axis c_opt of gold nanospheroids
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Table 3. Optimization results of volume scattering coefficient α_sca,max, minor semi-axis a_opt, and major semi-axis c_opt of gold nanospheroids
λ / nm α_sca,max / μm^-1 a_opt / nm c_opt / nm
830 147.62 19.9 67.1
840 150.98 19.8 68.2
900 165.92 19.3 74.9
1310 191.59 19.6 128.4

Table 4. Optimized results of scattering characteristics of gold nanospheroids and gold nanoshells

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Table 4. Optimized results of scattering characteristics of gold nanospheroids and gold nanoshells

Object	Parameter	Value
Object	Parameter	λ=1310 nm	λ=830 nm	λ=840 nm	λ=900 nm
	α_sca,max /μm^-1	147.62	150.98	165.92	191.59
Gold Nanospheroid	a_opt/ nm	19.9	19.8	19.3	19.6
	c_opt/nm	67.1	68.2	74.9	128.4
	α_sca,max/μm^-1	59.24	58.05	51.05	23.01
Gold nanoshell	R_{1, opt}/ nm	54.4	55.6	62.5	111.3
	t_opt /nm	10.1	10	9.4	7.8

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Xiayiding Yakupu, Paerhatijiang Tuersun, Panpan Wu. Optimization of Light Absorption and Scattering Properties of Gold Nanospheroids[J]. Acta Optica Sinica, 2020, 40(4): 0429001

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Paper Information

Category: Scattering

Received: Jun. 25, 2019

Accepted: Oct. 21, 2019

Published Online: Feb. 11, 2020

The Author Email: Tuersun Paerhatijiang (ptuersun@163.com)

DOI:10.3788/AOS202040.0429001

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Optimization results of volume absorption coefficient αabs,max, minor semi-axis aopt,and major semi-axis copt of gold nanospheroids

Table 1. Optimization results of volume absorption coefficient αabs,max, minor semi-axis aopt,and major semi-axis copt of gold nanospheroids

Table 2. Optimized results of absorption characteristicsof gold nanospheroids and gold nanoshells

Table 2. Optimized results of absorption characteristicsof gold nanospheroids and gold nanoshells

Table 3. Optimization results of volume scattering coefficient αsca,max, minor semi-axis aopt, and major semi-axis copt of gold nanospheroids

Table 3. Optimization results of volume scattering coefficient αsca,max, minor semi-axis aopt, and major semi-axis copt of gold nanospheroids

Table 4. Optimized results of scattering characteristics of gold nanospheroids and gold nanoshells

Table 4. Optimized results of scattering characteristics of gold nanospheroids and gold nanoshells

Table 1. Optimization results of volume absorption coefficient α_abs,max, minor semi-axis a_opt,and major semi-axis c_opt of gold nanospheroids

Table 1. Optimization results of volume absorption coefficient α_abs,max, minor semi-axis a_opt,and major semi-axis c_opt of gold nanospheroids

Table 3. Optimization results of volume scattering coefficient α_sca,max, minor semi-axis a_opt, and major semi-axis c_opt of gold nanospheroids

Table 3. Optimization results of volume scattering coefficient α_sca,max, minor semi-axis a_opt, and major semi-axis c_opt of gold nanospheroids