GB1445364A - Monocrystalline garnet body - Google Patents
Monocrystalline garnet bodyInfo
- Publication number
- GB1445364A GB1445364A GB4945973A GB4945973A GB1445364A GB 1445364 A GB1445364 A GB 1445364A GB 4945973 A GB4945973 A GB 4945973A GB 4945973 A GB4945973 A GB 4945973A GB 1445364 A GB1445364 A GB 1445364A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ions
- elements
- monocrystalline
- oct
- certain areas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/0009—Materials therefor
- G02F1/0036—Magneto-optical materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
- H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
- H01F10/18—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being compounds
- H01F10/20—Ferrites
- H01F10/24—Garnets
- H01F10/245—Modifications for enhancing interaction with electromagnetic wave energy
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Thin Magnetic Films (AREA)
- Compounds Of Iron (AREA)
Abstract
1445364 Garnet body PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 24 Oct 1973 [27 Oct 1972] 49459/73 Heading C1J An optically transparent monocrystalline body has a composition of formula wherein A is at least one of the bivalent rare earth metals having an atomic No. of from 57 to 70 and B is at least one of the elements Ga and Al, and/or a combination of at least one of the elements Si, Ge and V with at least one of the elements Ca, Mg and Zn wherein when x=0 1#y#2 and when 0<x#3 0#y#2, the values of x and y being x 0 and y 0 when the saturization magnetization M s =0, the body containing a region in which x and y as well as being equal to x 0 and y 0 in a plurality of strips of the region vary or varies from x 0 and/or y 0 respectively by no more than Œ0À02 in the remaining strips giving rise to compensation lines (defined) along which M s =0 at which compensation walls are formed when a magnetic field is applied. The body may be made by repeatedly varying the temperature at the growing area of the growing monocrystalline body, diffusing A ions and/or B ions into certain areas of a monocrystalline body, or implanting A ions and/or B ions into certain areas of a monocrystalline body. In examples GaAl, TbAl, DyAl, HoAl, GdGa, TbGa, DyGa, HoGa, and ErGa substituted yttrium iron garnets are described.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722252715 DE2252715C3 (en) | 1972-10-27 | 1972-10-27 | Optically transparent single crystal disk made of substituted iron garnet and process for its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1445364A true GB1445364A (en) | 1976-08-11 |
Family
ID=5860211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4945973A Expired GB1445364A (en) | 1972-10-27 | 1973-10-24 | Monocrystalline garnet body |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS4999992A (en) |
| DE (1) | DE2252715C3 (en) |
| FR (1) | FR2204817A1 (en) |
| GB (1) | GB1445364A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1050774A2 (en) * | 1999-05-03 | 2000-11-08 | Lucent Technologies Inc. | Temperature dependent variable optical attenuator |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2600959C2 (en) * | 1976-01-13 | 1984-06-28 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Ferrimagnetic garnet layer for magneto-optical memories and their manufacture |
| NL7713759A (en) * | 1977-12-13 | 1979-06-15 | Philips Nv | MAGNETIC BUBBLE DOMAIN MATERIAL AND EQUIPMENT FOR THE PROMOTION OF MAGNETIC BELL DOMAINS OF WHICH SUCH MATERIAL MAKES PART. |
| JP2882351B2 (en) * | 1996-04-17 | 1999-04-12 | 日本電気株式会社 | Crystal for solid-state laser, its manufacturing method and laser device |
-
1972
- 1972-10-27 DE DE19722252715 patent/DE2252715C3/en not_active Expired
-
1973
- 1973-10-24 GB GB4945973A patent/GB1445364A/en not_active Expired
- 1973-10-25 JP JP11950573A patent/JPS4999992A/ja active Pending
- 1973-10-29 FR FR7338450A patent/FR2204817A1/fr not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1050774A2 (en) * | 1999-05-03 | 2000-11-08 | Lucent Technologies Inc. | Temperature dependent variable optical attenuator |
| EP1050774A3 (en) * | 1999-05-03 | 2002-07-17 | Agere Systems Optoelectronics Guardian Corporation | Temperature dependent variable optical attenuator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4999992A (en) | 1974-09-20 |
| FR2204817A1 (en) | 1974-05-24 |
| DE2252715C3 (en) | 1980-04-30 |
| DE2252715A1 (en) | 1974-05-02 |
| DE2252715B2 (en) | 1979-08-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |