Si-LiNbO3-air-metal structure for concentrated terahertz emission from ultrashort laser pulses

被引：23

作者：

Bakunov, M. I. ^{[1
,2
]}

Bodrov, S. B. ^{[1
,2
]}

机构：

[1] Univ Nizhny Novgorod, Nizhnii Novgorod 603950, Russia

[2] Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod 603950, Russia

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2010年 / 98卷 / 01期

关键词：

OPTICAL RECTIFICATION; GENERATION; RADIATION;

D O I：

10.1007/s00340-009-3816-1

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A planar Si-LiNbO3-air-metal structure is proposed as a further development of the highly efficient optical-to-terahertz conversion scheme in sandwich structures that was recently demonstrated. The new structure allows one to collect the terahertz emission into one spatial direction and to control its spectrum by varying an air gap between the metal substrate and the LiNbO3 layer. While the overall increase in the terahertz generation can reach a factor of 2, the spectral density in the interesting for practical application interval 0.5-1.5 THz can be increased by a factor of 3.5-4.

引用

页码：1 / 4

页数：4

共 8 条

[1] SUBPICOSECOND ELECTROOPTIC SHOCK-WAVES [J].

AUSTON, DH .

APPLIED PHYSICS LETTERS, 1983, 43 (08) :713-715

[2] CHERENKOV RADIATION FROM FEMTOSECOND OPTICAL PULSES IN ELECTRO-OPTIC MEDIA [J].

AUSTON, DH ;

CHEUNG, KP ;

VALDMANIS, JA ;

KLEINMAN, DA .

PHYSICAL REVIEW LETTERS, 1984, 53 (16) :1555-1558

[3] Theory of terahertz generation in a slab of electro-optic material using an ultrashort laser pulse focused to a line [J].

Bakunov, M. I. ;

Bodrov, S. B. ;

Maslov, A. V. ;

Hangyo, M. .

PHYSICAL REVIEW B, 2007, 76 (08)

[4] Efficient Cherenkov emission of broadband terahertz radiation from an ultrashort laser pulse in a sandwich structure with nonlinear core [J].

Bodrov, S. B. ;

Bakunov, M. I. ;

Hangyo, M. .

JOURNAL OF APPLIED PHYSICS, 2008, 104 (09)

[5] Highly efficient optical-to-terahertz conversion in a sandwich structure with LiNbO3 core [J].

Bodrov, S. B. ;

Stepanov, A. N. ;

Bakunov, M. I. ;

Shishkin, B. V. ;

Ilyakov, I. E. ;

Akhmedzhanov, R. A. .

OPTICS EXPRESS, 2009, 17 (03) :1871-1879

[6] Scaling up the energy of THz pulses created by optical rectification [J].

Stepanov, AG ;

Kuhl, J ;

Kozma, IZ ;

Riedle, E ;

Almási, G ;

Hebling, J .

OPTICS EXPRESS, 2005, 13 (15) :5762-5768

[7] THz generation via optical rectification with ultrashort laser pulse focused to a line [J].

Stepanov, AG ;

Hebling, J ;

Kuhl, J .

APPLIED PHYSICS B-LASERS AND OPTICS, 2005, 81 (01) :23-26

[8] Efficient generation of Cherenkov-type terahertz radiation from a lithium niobate crystal with a silicon prism output coupler - art. no. 071122 [J].

Theuer, M ;

Torosyan, G ;

Rau, C ;

Beigang, R ;

Maki, K ;

Otani, C ;

Kawase, K .

APPLIED PHYSICS LETTERS, 2006, 88 (07)

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