Adaptive geometric optics derived from nonlinear acoustic effects

被引：20

作者：

Higginson, KA ^{[1
]}

Costolo, MA ^{[1
]}

Rietman, EA ^{[1
]}

机构：

[1] Triton Syst Inc, Chelmsford, MA 01824 USA

来源：

APPLIED PHYSICS LETTERS | 2004年 / 84卷 / 06期

关键词：

D O I：

10.1063/1.1645663

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Tunable gradient index (GRIN) lenses were formed in a liquid-filled cavity supporting an ultrasonic standing wave. The refractive index gradient is based on the steady-state pressure component of the finite-amplitude acoustic signal. An acoustic lens was constructed which (1) focused and modulated a collimated light source and (2) formed an image. The properties of the lens are a function of the amplitude and frequency of the applied ultrasound. At the center of symmetry, the device can be approximated as a diverging lens with a single focal point of about -10 cm. In general, however, a series of focal lines are formed, to create a device resembling an axicon or an abberrating lens. (C) 2004 American Institute of Physics.

引用

页码：843 / 845

页数：3

共 10 条

[1] VISUAL METHODS FOR STUDYING ULTRASONIC PHENOMENA [J].