JP4937948B2 - 非線形バルク光材料中でのコンティニューム発生増大 - Google Patents
非線形バルク光材料中でのコンティニューム発生増大 Download PDFInfo
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- JP4937948B2 JP4937948B2 JP2008065471A JP2008065471A JP4937948B2 JP 4937948 B2 JP4937948 B2 JP 4937948B2 JP 2008065471 A JP2008065471 A JP 2008065471A JP 2008065471 A JP2008065471 A JP 2008065471A JP 4937948 B2 JP4937948 B2 JP 4937948B2
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- 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
- G02F1/35—Non-linear optics
- G02F1/353—Frequency conversion, i.e. wherein a light beam is generated with frequency components different from those of the incident light beams
-
- 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
- G02F1/35—Non-linear optics
- G02F1/3528—Non-linear optics for producing a supercontinuum
-
- 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
- G02F2202/00—Materials and properties
- G02F2202/32—Photonic crystals
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Description
n(λ,r,t)=n0(λ)+n2(λ)φ(r,t)
ただし、n0(λ)は、バルク材料12の通常の線形屈折率であり、n2(λ)は、バルク材料12の非線形屈折率であり、φ(r,t)は、レーザ・パルスの時間的、空間的に変化する強度として定義される。さらに高次の非線形性もあり得、ここではそれは明快化のために省略されていることに留意すべきである。実際には、材料中に適切な対称性があるため、2次の非線形性もあり得、2次高調波を生じさせる。しかし、上記の式は、例示の例として、3次の非線形性の場合だけを与えている。線形項の性質は、屈折および反射などの光現象を生じるものとして、すでに述べられており、そこでは、光は単に反射される、または遅延させられるが、その周波数(波長)に関しては変化しないままである。非線形項は、かなり異なり、レーザ波長における材料の特性非線形係数およびレーザ・パルスの空間、時間的特性の両方に依存する。非線形屈折率n2が大きくなるにつれて、および/またはレーザ・パルスの強度が高くなるにつれて、ますます非線形効果が強くなり、全屈折率への非線形の寄与がさらに大きくなる。
Claims (5)
- 光源からの一定波長の光を入力に発射したときに、出力においてコンティニューム・スペクトルを発生する光デバイスであって、
導波路を用いることなくコンティニューム・スペクトルを発生するように構成された、少なくとも1つのフォトニック・バンドギャップ(PBG)を示す空間的なマイクロ構造の部分を含む、高非線形の光学的特性を示す3次元のバルク光要素を備えることを特徴とする光デバイス。 - 前記バルク光要素は、線形および/または非線形の光学的特性が異なる少なくとも2つの材料を備えることを特徴とする請求項1に記載の光デバイス。
- 前記発生されるコンティニューム・スペクトルは、空間的なマイクロ構造の構成が存在しないことに関連する値より3dB大きい少なくとも1つの増大されたスペクトル領域を含むことを特徴とする請求項1に記載の光デバイス。
- 前記バルク光要素の前記非線形の光学的特性を修正することによって、前記発生されるコンティニューム帯域幅を増大するように、前記空間的なマイクロ構造の構成がさらに処理されることを特徴とする請求項1に記載の光デバイス。
- 前記バルク光要素の前記線形の光学的特性を修正することによって、前記発生されるコンティニューム帯域幅を増大するように、前記空間的なマイクロ構造の構成がさらに処理されることを特徴とする請求項1に記載の光デバイス。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/724630 | 2007-03-15 | ||
US11/724,630 US8023179B2 (en) | 2007-03-15 | 2007-03-15 | Enhanced continuum generation in nonlinear bulk optic materials |
Publications (2)
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JP2008225480A JP2008225480A (ja) | 2008-09-25 |
JP4937948B2 true JP4937948B2 (ja) | 2012-05-23 |
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JP2008065471A Expired - Fee Related JP4937948B2 (ja) | 2007-03-15 | 2008-03-14 | 非線形バルク光材料中でのコンティニューム発生増大 |
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US (1) | US8023179B2 (ja) |
JP (1) | JP4937948B2 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US9939682B2 (en) * | 2013-02-15 | 2018-04-10 | E-Vision, Llc | Liquid crystal alignment layers and method of fabrication |
EP2933681B1 (en) * | 2014-04-14 | 2020-06-10 | Deutsches Elektronen-Synchrotron DESY | Method and device for filament-based white light generation |
JP6504658B2 (ja) * | 2015-05-08 | 2019-04-24 | 日本電信電話株式会社 | 広帯域光周波数コム光源および広帯域光周波数コムの発生方法 |
FR3047118B1 (fr) * | 2016-01-22 | 2018-03-02 | Centre National De La Recherche Scientifique - Cnrs - | Dispositif de generation d’un faisceau de photons polychromatique et spatialement autoadapte |
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GB9618764D0 (en) | 1996-09-09 | 1996-10-23 | Univ Southampton | Wavelength-swept fiber laser with frequency shifted feedback |
JP3325825B2 (ja) * | 1997-03-29 | 2002-09-17 | 彰二郎 川上 | 3次元周期構造体及びその作製方法並びに膜の製造方法 |
JP4474625B2 (ja) * | 1999-12-14 | 2010-06-09 | 独立行政法人科学技術振興機構 | 超広帯域可変波長多重パルス波形整形装置 |
GB0008546D0 (en) * | 2000-04-06 | 2000-05-24 | Btg Int Ltd | Optoelectronic devices |
GB0010950D0 (en) | 2000-05-05 | 2000-06-28 | Univ Bath | A nonlinear optical device |
WO2002012933A2 (en) * | 2000-08-09 | 2002-02-14 | Massachusetts Institute Of Technology | Periodic dielectric structure having a complete three-dimensional photonic band gap |
US6684008B2 (en) | 2000-09-01 | 2004-01-27 | The University Of British Columbia | Planar photonic bandgap structures for controlling radiation loss |
US7018467B2 (en) | 2002-01-17 | 2006-03-28 | Micron Technology, Inc. | Three-dimensional complete bandgap photonic crystal formed by crystal modification |
US7292749B2 (en) * | 2001-10-17 | 2007-11-06 | Danmarks Tekniske Universitet | System for electromagnetic field conversion |
US6991847B2 (en) | 2002-02-07 | 2006-01-31 | Honeywell International Inc. | Light emitting photonic crystals |
AU2002257622A1 (en) * | 2002-03-06 | 2003-09-16 | Pirelli & C. S.P.A. | Device for crossing optical beams, in particular in an integrated optical circuit |
CA2382955A1 (en) * | 2002-04-23 | 2003-10-23 | Stephen W. Leonard | Method of varying optical properties of photonic crystals on fast time scales using energy pulses |
US6856737B1 (en) | 2003-08-27 | 2005-02-15 | Mesophotonics Limited | Nonlinear optical device |
DE10340964A1 (de) * | 2003-09-05 | 2005-03-31 | Leica Microsystems Heidelberg Gmbh | Lichtquelle mit einem mikrostrukturierten optischen Element |
US7012279B2 (en) | 2003-10-21 | 2006-03-14 | Lumileds Lighting U.S., Llc | Photonic crystal light emitting device |
WO2005054119A2 (en) * | 2003-12-01 | 2005-06-16 | The Board Of Trustees Of The University Of Illinois | Methods and devices for fabricating three-dimensional nanoscale structures |
US7889776B2 (en) * | 2004-01-20 | 2011-02-15 | Trumpf Photonics Inc. | High-power semiconductor laser |
JP4579710B2 (ja) | 2004-02-20 | 2010-11-10 | フルカワ エレクトリック ノース アメリカ インコーポレーテッド | 後処理による高非線形ファイバにおける光発生の変更、増強および調整 |
JP4807514B2 (ja) * | 2004-02-27 | 2011-11-02 | 日本電気株式会社 | 光クロック抽出装置及び方法 |
JP4964123B2 (ja) * | 2004-04-16 | 2012-06-27 | ディ.ケイ. アンド イー.エル. マクフェイル エンタープライジーズ プロプライエタリー リミテッド | 空洞構造を備えた、調節可能フォトニック結晶として使用される光学的活性素子の形成方法 |
US7257333B2 (en) * | 2005-01-06 | 2007-08-14 | Raytheon Company | Dynamic control of planck radiation in photonic crystals |
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US20080225382A1 (en) | 2008-09-18 |
US8023179B2 (en) | 2011-09-20 |
JP2008225480A (ja) | 2008-09-25 |
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