JP6014595B2 - 球形液晶レーザー装置 - Google Patents
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/022—Constructional details of liquid lasers
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/0627—Construction or shape of active medium the resonator being monolithic, e.g. microlaser
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- H—ELECTRICITY
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/102—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/102—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
- H01S3/1028—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation by controlling the temperature
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
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- H01S3/105—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length
- H01S3/1053—Control by pressure or deformation
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
- H01S3/1065—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using liquid crystals
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Description
1)S‐811キラル不純物(Merck)の25.5重量%を、MLC‐7023液晶(Merck)に加える。混合物は加熱して等方相とし、通常は数分混ぜて均質化する。そして、0.2重量%の液光色素、7−ジエチルアミノ−3、4−ベンゾフェノキサジン−2−オン(ナイルレッド)を混合物に加え、加熱して等方相とし、均一になるまで、通常は数分間混ぜる。均一化後、色素ドープキラルネマティック液晶は、いくつかの固体残留色素粒子を取り除くために遠心分離される。材料は通常、2、3分、10000rpmで分離され、スピンの半径は通常数センチである。
Claims (20)
- キラル相を形成する液晶の液滴によって形成され、
前記液滴は、外部光によって励起されたときにレーザー光を放出する活性レーザー媒体を含み、
前記液滴中に、光学的に異なる同心層(1)が形成され、前記レーザー光の反射器として動作し、
前記液滴の屈折率は、前記同心層により前記液滴中の放射方向に変調される、液晶のレーザー装置。 - 前記液滴内の液晶が重合される請求項1に記載のレーザー装置。
- 前記液滴は球形である、請求項1又は2に記載のレーザー装置。
- 前記液晶は、前記活性レーザー媒体の放出波長範囲で選択的に反射する、請求項1〜3のいずれかに記載のレーザー装置。
- 前記液晶は、ネマティック液晶とキラル不純物又は他のキラル液晶相の混合物であるコレステリック液晶であり、
前記キラル液晶相は、ブルー相、強誘電相、反強誘電スメクティック相、強誘電スメクティック相、軟物質についてのその他のキラル相、又は弓状分子の非キラル分子からなるその他のキラル相である、請求項4に記載のレーザー装置。 - 前記レーザー活性媒体は、有機蛍光色素、希土類イオンもしくはその他のイオン、量子ドット、その他の蛍光媒体である、請求項4又は5に記載のレーザー装置。
- 前記液晶は、前記液滴の表面(3)から中心(4)に向かう放射方向に延びるらせん構造を形成する、請求項4〜6のいずれかに記載のレーザー装置。
- 前記液滴の異なる同心層(1)は、放射方向に進むレーザー光のための選択ミラーとして機能し、球形ブラッグミラーを形成する同心コレステリック層である、請求項1〜7のいずれかに記載のレーザー装置。
- 気体、液体、固体その他の種類の液晶、又は真空であってもよい透明な外部媒体(2)に前記液滴は配置され、
前記外部媒体は、前記液滴(3)の内部と外部の間の境界に、前記液滴の表面に平行に前記液晶が並ぶように選択される、請求項1〜8のいずれかに記載のレーザー装置。 - 前記液滴の中心に球形の物体(7)又は他の形状の物体が配置され、
前記物体は、気体、液体、前記液滴の前記液晶と反応しない液晶、又は固体から形成される、請求項1〜9のいずれかに記載のレーザー装置。 - 円筒型誘電体として形成された単一の光導波路(9)が、前記液滴を中央に向かって放射状に貫通し、前記導波路(9)は前記液滴からのレーザー光を取り込む、請求項1〜10のいずれかに記載のレーザー装置。
- 前記光導波路(9)は、前記液滴全体を貫通する請求項11に記載のレーザー装置。
- 前記光導波路(9)は、前記レーザー活性媒体を形成するレーザー活性物質からなる物体(7)を含む、請求項12に記載のレーザー装置。
- 前記球形の物体(7)又は他の形状の物体は、前記レーザー活性媒体を含む請求項10に記載のレーザー装置。
- 前記レーザー活性媒体は、前記液晶に分散している請求項1〜12のいずれかに記載のレーザー装置。
- 前記レーザー光は、前記レーザー活性媒体の吸収範囲に波長が存在する強い外部光(5)によって励起され、
前記外部光は、1つ又はそれ以上の方向から、前記導波路(9)を通って、前記液滴に到達する、
請求項11〜13のいずれかに記載の前記レーザー装置の操作方法。 - 前記レーザー装置によって放出される前記レーザー光の波長は、温度又は外部の電磁場を変更することにより変更される、請求項16に記載の操作方法。
- 並進対称、回転対称、角度調節可能な疑似対称、又は並進対称でも回転対称でもない、1次元、2次元、又は3次元ネットワークに、請求項1〜15のいずれかに記載の前記レーザー装置を多く並べた、複数のレーザー装置を含むレーザー装置システム。
- 前記外部媒体(2)が液体であるとき、液晶及び外部媒体を機械的に混合することにより、又は液晶が分布している光学的等方性媒体の温度変化、重合又は光重合中に発生する相分離処理によって、前記液滴を形成する請求項1〜15のいずれかに記載の液晶のレーザー装置の製造方法。
- 前記レーザー光は、前記レーザー活性媒体の吸収範囲に波長が存在する強い外部光(5)によって励起され、
前記外部光は、1つ又はそれ以上の方向から、前記透明な外部媒体(2)を通って、前記液滴に到達する、
請求項9に記載の前記レーザー装置の操作方法。
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SIP-201000377 | 2010-11-10 | ||
SI201000377A SI23567B (sl) | 2010-11-10 | 2010-11-10 | Kroglasti tekočekristalni laser |
PCT/EP2011/005607 WO2012062450A1 (en) | 2010-11-10 | 2011-11-08 | Spherical liquid-crystal laser |
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JP2013542615A JP2013542615A (ja) | 2013-11-21 |
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JP (1) | JP6014595B2 (ja) |
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EP2855629A1 (en) * | 2012-05-25 | 2015-04-08 | Cambridge Enterprise Ltd. | Printing of liquid crystal droplet laser resonators on a wet polymer solution and product made therewith |
CN104852259B (zh) * | 2015-05-22 | 2018-01-19 | 哈尔滨工程大学 | 液滴回音壁模式激光器及其制作方法 |
CN104901150B (zh) * | 2015-05-25 | 2018-04-24 | 哈尔滨工程大学 | 一种多波长液滴激光器 |
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CN112246197B (zh) * | 2017-12-25 | 2022-08-16 | 江苏集萃智能液晶科技有限公司 | 具有光学各向异性的多孔结构聚合物微球及其应用 |
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CN109755853B (zh) * | 2019-03-12 | 2024-03-29 | 中国科学技术大学 | 一种尼罗红有机溶剂作为增益介质的染料激光装置 |
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US9263843B2 (en) | 2016-02-16 |
US20130223467A1 (en) | 2013-08-29 |
SI23567A (sl) | 2012-05-31 |
EP2638604A1 (en) | 2013-09-18 |
KR20130114660A (ko) | 2013-10-17 |
SI23567B (sl) | 2019-07-31 |
HK1187157A1 (zh) | 2014-03-28 |
CN103201914B (zh) | 2015-11-25 |
EP2638604B1 (en) | 2015-03-18 |
PL2638604T3 (pl) | 2015-08-31 |
RU2559124C2 (ru) | 2015-08-10 |
WO2012062450A1 (en) | 2012-05-18 |
KR101508449B1 (ko) | 2015-04-07 |
RU2013126429A (ru) | 2014-12-20 |
CN103201914A (zh) | 2013-07-10 |
JP2013542615A (ja) | 2013-11-21 |
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