Title:
光学素子
Document Type and Number:
Japanese Patent JP2004502978
Kind Code:
A
Abstract:
An optical component for effecting frequency selective reflection in the gigahertz and terahertz frequency ranges and for effecting wave permeability includes at least one first layer ( 1, 3, 5 ) made of a first material (m 1 ). The first material is optically permeable to electromagnetic radiation of a reference frequency (f) between 5 gigahertz (GHz) and 10 terahertz (THz) and has a first refractive index (n 1 ) and an optical thickness of approximately one-fourth the wavelength (lambda) of the electromagnetic radiation of the reference frequency (f) in the first material (m 1 ). There is at least one second layer ( 2 ) situated underneath the first layer ( 1 ) that is made of a second material (m 2 ) which is optically permeable to electromagnetic radiation of a reference frequency (f) and which has a second refractive index (n 2 ) and an optical thickness of approximately one-fourth or one-half the wavelength (lambda) of the electromagnetic radiation of the reference frequency (f) in the second material ( 2 ), thus the first refractive index (n 1 ) and the second refractive index (n 2 ) are different.
Inventors:
Knoproch, Pascal
Turchinovich, Dmitry
Dobbeltin, Thomas
Koch, Martin
Turchinovich, Dmitry
Dobbeltin, Thomas
Koch, Martin
Application Number:
JP2002508809A
Publication Date:
January 29, 2004
Filing Date:
July 10, 2001
Export Citation:
Assignee:
Tehiniche Uniberg Tate Braunschweig Carroll-Bilhelmina
International Classes:
G02B5/26; G02B1/11; G02B5/28; H01Q15/00; H01Q17/00; (IPC1-7): G02B1/11; G02B5/26
Domestic Patent References:
| JPH11261286A | 1999-09-24 | |||
| JPH11195890A | 1999-07-21 | |||
| JPS63197399A | 1988-08-16 | |||
| JP2002507013A | 2002-03-05 | |||
| JPS6480906A | 1989-03-27 | |||
| JPH0223302A | 1990-01-25 |
Foreign References:
| WO1999047465A1 | 1999-09-23 |
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto