Characteristics of nano-scale composites by THz spectroscopy

被引：1

作者：

Altan, H ^{[1
]}

Huang, F ^{[1
]}

Federici, J ^{[1
]}

Lan, A ^{[1
]}

Grebel, H ^{[1
]}

机构：

[1] New Jersey Inst Technol, Dept Phys, Newark, NJ 07102 USA

来源：

TERAHERTZ FOR MILITARY AND SECURITY APPLICATIONS | 2003年 / 5070卷

关键词：

SWCNT; Si Nano crystals; THz-TDS; visible pump-THz probe;

D O I：

10.1117/12.506898

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We have conducted visible pump-THz probe experiments on single wall carbon nanotubes (SWCNTs) on quartz substrates. Our results suggest an upper limit to the carrier-lifetime, which is on the order 1.5ps, limited only by the THz pulse duration. These experiments were repeated for ion-implanted, 3-4nm Si nanoclusters in quartz for which the carrier lifetime was also assessed at 1.5ps. THz time-domain spectroscopy (THz-TDS) of SWCNTs revealed that the THz pulse peak transmission changed under optical illumination.

引用

页码：53 / 59

页数：7

共 13 条

[1] Nonlinear optical properties of a coherent array of submicron SiO2 spheres (opal) embedded with Si nanoparticles [J].

Ajgaonkar, M ;

Zhang, Y ;

Grebel, H ;

White, CW .

APPLIED PHYSICS LETTERS, 1999, 75 (11) :1532-1534

[2] Artificial dielectrics: linear and nonlinear optical properties of germanium-implanted coherent arrays of submicrometer silica spheres [J].

Ajgaonkar, M ;

Zhang, Y ;

Grebel, H ;

Brown, RA .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2002, 19 (06) :1391-1395

[3] Subpicosecond carrier dynamics in low-temperature grown GaAs as measured by time-resolved terahertz spectroscopy [J].

Beard, MC ;

Turner, GM ;

Schmuttenmaer, CA .

JOURNAL OF APPLIED PHYSICS, 2001, 90 (12) :5915-5923

[4] Ultrafast optical switching properties of single-wall carbon nanotube polymer composites at 1.55 μm [J].

Chen, YC ;

Raravikar, NR ;

Schadler, LS ;

Ajayan, PM ;

Zhao, YP ;

Lu, TM ;

Wang, GC ;

Zhang, XC .

APPLIED PHYSICS LETTERS, 2002, 81 (06) :975-977

[5]

Dresselhaus M. S., 1996, SCI FULLERENES CARBO

[6] Linear and nonlinear optical properties of single-walled carbon nanotubes within an ordered array of nanosized silica spheres [J].

Han, H ;

Vijayalakshmi, S ;

Lan, A ;

Iqbal, Z ;

Grebel, H ;

Lalanne, E ;

Johnson, AM .

APPLIED PHYSICS LETTERS, 2003, 82 (09) :1458-1460

[7] SINGLE-SHELL CARBON NANOTUBES OF 1-NM DIAMETER [J].

IIJIMA, S ;

ICHIHASHI, T .

NATURE, 1993, 363 (6430) :603-605

[8] Terahertz conductivity of anisotropic single walled carbon nanotube films [J].

Jeon, TI ;

Kim, KJ ;

Kang, C ;

Oh, SJ ;

Son, JH ;

An, KH ;

Bae, DJ ;

Lee, YH .

APPLIED PHYSICS LETTERS, 2002, 80 (18) :3403-3405

[9] Carrier dynamics of low-temperature-grown GaAs observed via THz spectroscopy [J].

Prabhu, SS ;

Ralph, SE ;

Melloch, MR ;

Harmon, ES .

APPLIED PHYSICS LETTERS, 1997, 70 (18) :2419-2421

[10] INTERVALLEY SCATTERING IN GAAS AND INP PROBED BY PULSED FAR-INFRARED TRANSMISSION SPECTROSCOPY [J].

SAETA, PN ;

FEDERICI, JF ;

GREENE, BI ;

DYKAAR, DR .

APPLIED PHYSICS LETTERS, 1992, 60 (12) :1477-1479

← 1 2 →