Coherent pulse propagation and modelocking in terahertz quantum cascade lasers
太赫兹量子级联激光器中的相干脉冲传播和锁模
基本信息
- 批准号:EP/T034246/1
- 负责人:
- 金额:$ 143.65万
- 依托单位:
- 依托单位国家:英国
- 项目类别:Research Grant
- 财政年份:2021
- 资助国家:英国
- 起止时间:2021 至 无数据
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
The generation of ultrafast and intense light pulses is an underpinning technology across the electromagnetic spectrum enabling time-resolved measurements, nonlinear photonics, coherent control of matter, and frequency comb synthesis for high-precision metrology and spectroscopy. Yet in the terahertz (THz) region of the electromagnetic spectrum (~0.5-5THz), which spans the frequency range between microwaves and the mid-infrared, a compact semiconductor-based technology platform for intense and ultrafast pulse generation has yet to be realised. Established pulse generation schemes, based on excitation of photoconductive emitters or nonlinear crystals using bulky and expensive near-infrared lasers systems, offer only low frequency modulation, or broadband emission with little control of the spectral bandwidth and pulse width. These limitations are significantly hindering the development of the THz field not only in the UK but internationally, with adverse consequences for both fundamental scientific research and the development of future applications in metrology, materials analysis and molecular spectroscopy, and ultra-high speed THz communications.One promising solution to closing this technological gap is the THz frequency quantum cascade laser (QCL) - a compact and high-power semiconductor laser based on a quantum-engineered semiconductor superlattice. However, modelocking these sources is inherently difficult to achieve due to the very fast gain recovery time in these structures. Indeed, active modelocking approaches adopted to date have succeeded only in achieving pulse widths down to ~4ps, and only low output powers are possible.In this programme we will explore a radically new approach to pulse generation in lasers, based on the phenomenon of self-induced transparency in which pulses of the correct energy and pulse duration propagate without loss in the laser cavity whilst the growth of continuous waves is supressed. Although this concept has been discussed since the 1960s, the observation of this effect in semiconductor devices has remained elusive owing to the typically short coherence times of inter-band laser transitions. QCLs, however, are the ideal tool to realize SIT-modelocking owing to their large dipole moments, relatively long inter-subband coherence times, and, importantly, the possibility of combining resonant gain and absorbing periods with engineered dipole moments.We will explore the coherent interaction of intense, ultrafast THz pulses with intersubband semiconductor heterostructures and THz QCL devices for the first time. Although these measurements are of fundamental interest in their own right, the investigation of such systems will lead to the development of the first modelocked semiconductor laser exploiting self-induced transparency. Through this approach, we will bring about a step change in QCL modelocked technology and develop THz QCLs into a foundational, compact semiconductor technology for generating intense and ultrafast THz pulses, with inherent advantages of high powers, broad spectral coverage and the ability to electrically-control the emission properties. This will pave the way for the application of modelocked THz QCLs across a wide range of areas of academic and industrial relevance, including non-linear THz science, quantum optics, ultra-high-speed THz communications, and high-precision metrology and molecular spectroscopy. But that is not all. We will also demonstrate proof-of-principle applications of these new QCL sources for molecular spectroscopy, leading to a compact, all-solid-state and electrically-controlled multi-heterodyne THz spectrometer offering >500 GHz spectral coverage and sub-millisecond acquisition times. Through this goal we will translate to the THz region the unequalled combination of broad spectral coverage, high detection sensitivity, narrow spectral resolution and fast acquisition enabled by laser frequency combs at mid- and near-infrared frequencies.
产生超快和强光脉冲是跨电磁频谱的基础技术,可以实现时间分辨测量,非线性光子学,物质的相干控制以及用于高精度计量和光谱学的频率梳合成。然而,在电磁波谱的太赫兹(THz)区域(~0.5-5THz),它跨越微波和中红外之间的频率范围,一种紧凑的基于半导体的技术平台,用于产生强烈和超快的脉冲,尚未实现。已建立的脉冲产生方案,基于光导发射器或非线性晶体的激发,使用笨重和昂贵的近红外激光系统,只提供低频调制或宽带发射,很少控制光谱带宽和脉冲宽度。这些限制严重阻碍了太赫兹领域的发展,不仅在英国,而且在国际上,对基础科学研究和未来在计量、材料分析和分子光谱学以及超高速太赫兹通信方面的应用的发展都产生了不利影响。缩小这一技术差距的一个有希望的解决方案是太赫兹频率量子级联激光器(QCL)——一种基于量子工程半导体超晶格的紧凑高功率半导体激光器。然而,由于这些结构中的增益恢复时间非常快,因此对这些源进行建模锁定本质上是难以实现的。事实上,迄今为止采用的主动模型锁定方法只成功地实现了~4ps的脉冲宽度,并且只能实现低输出功率。在这个节目中,我们将探索一种全新的激光脉冲产生方法,基于自诱导透明现象,其中正确的能量和脉冲持续时间的脉冲在激光腔中传播而没有损失,同时连续波的增长被抑制。虽然这个概念自20世纪60年代以来一直在讨论,但由于带间激光跃迁的典型短相干时间,在半导体器件中观察到这种效应仍然难以捉摸。然而,由于其大的偶极矩,相对较长的子带间相干时间,以及将谐振增益和吸收周期与工程偶极矩相结合的可能性,qcl是实现sit模型锁定的理想工具。我们将首次探索强超快太赫兹脉冲与子带间半导体异质结构和太赫兹QCL器件的相干相互作用。虽然这些测量本身具有根本的兴趣,但对这些系统的研究将导致开发出第一个利用自诱导透明度的锁模半导体激光器。通过这种方法,我们将带来QCL模型锁定技术的阶梯式变化,并将太赫兹QCL发展成为产生强超快太赫兹脉冲的基础紧凑型半导体技术,具有高功率,广谱覆盖和电气控制发射特性的固有优势。这将为模型锁定太赫兹qcl在广泛的学术和工业相关领域的应用铺平道路,包括非线性太赫兹科学、量子光学、超高速太赫兹通信、高精度计量和分子光谱学。但这还不是全部。我们还将演示这些新的QCL源在分子光谱中的原理验证应用,从而实现紧凑、全固态和电控的多外差太赫兹光谱仪,提供50 - 500 GHz的光谱覆盖和亚毫秒的采集时间。通过这一目标,我们将转化为太赫兹区域无与伦比的广谱覆盖、高探测灵敏度、窄光谱分辨率和快速采集的组合,这些都是由激光频率梳在中红外和近红外频率上实现的。
项目成果
期刊论文数量(10)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Sub-surface damage detection in marble structures using THz time domain and laser feedback interferometric imaging techniques
使用太赫兹时域和激光反馈干涉成像技术检测大理石结构的次表面损伤
- DOI:10.1117/12.2592548
- 发表时间:2021
- 期刊:
- 影响因子:0
- 作者:Bandyopadhyay A
- 通讯作者:Bandyopadhyay A
Terahertz imaging with self-pulsations in quantum cascade lasers under optical feedback
- DOI:10.1063/5.0056487
- 发表时间:2021-09-01
- 期刊:
- 影响因子:5.6
- 作者:Qi, Xiaoqiong;Bertling, Karl;Rakic, Aleksandar D. D.
- 通讯作者:Rakic, Aleksandar D. D.
Observation of optical feedback dynamics in single-mode terahertz quantum cascade lasers: Transient instabilities
- DOI:10.1103/physreva.103.033504
- 发表时间:2021-03-08
- 期刊:
- 影响因子:2.9
- 作者:Qi, Xiaoqiong;Bertling, Karl;Rakic, Aleksandar D.
- 通讯作者:Rakic, Aleksandar D.
Terahertz imaging of human skin pathologies using laser feedback interferometry with quantum cascade lasers.
- DOI:10.1364/boe.480615
- 发表时间:2023-04-01
- 期刊:
- 影响因子:3.4
- 作者:Qi, Xiaoqiong;Bertling, Karl;Stark, Mitchell S.;Taimre, Thomas;Kao, Yung-Ching;Lim, Yah Leng;Han, She;O'Brien, Blake;Collins, Angus;Walsh, Michael;Torniainen, Jari;Gillespie, Timothy;Donose, Bogdan C.;Dean, Paul;Li, Lian He;Linfield, Edmund H.;Davies, A. Giles;Indjin, Dragan;Soyer, H. Peter;Rakic, Aleksandar D.
- 通讯作者:Rakic, Aleksandar D.
Prospects of temperature performance enhancement through higher resonant phonon transition designs in GaAs-based terahertz quantum-cascade lasers
通过砷化镓基太赫兹量子级联激光器中更高谐振声子跃迁设计提高温度性能的前景
- DOI:10.1088/1367-2630/ac5b41
- 发表时间:2022
- 期刊:
- 影响因子:3.3
- 作者:Demic A
- 通讯作者:Demic A
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Paul Dean其他文献
Collicular picrotoxin alleviates akinesia but not sensory neglect in rats with bilateral 6-hydroxydopamine lesions of ventral midbrain
- DOI:
10.1007/bf00432188 - 发表时间:
1981-11-01 - 期刊:
- 影响因子:3.300
- 作者:
Peter Redgrave;Paul Dean - 通讯作者:
Paul Dean
Abstracts of papers presented at the 81st annual meeting of The Potato Association of America Charlottetown, P.E.I., Canada August 3 – 7, 1997
- DOI:
10.1007/bf02852782 - 发表时间:
1997-11-01 - 期刊:
- 影响因子:1.800
- 作者:
S. T. Ali-Khan;C. Hetner;L. Ladislav;V. Currie;Walter J. Arsenault;A. Naseer Aziz;Janet E. A. Seabrook;George C. C. Tai;J. B. Bamberg;Alfonso H. del Rio;Max Martin;J. B. Bamberg;D. J. Ormrod;W. E. Fry;K. B. Barrett;P. Nolte;W. B. Jones;M. A. Bateman;M. C. Bertram;L. L. Nolte;Melissa C. Bertram;John Ojala;Geoffrey A. Barrall;James T. Blankemeyer;Misty L. McWilliams;Mendel Friedman;Gilles Boiteau;Tatiana Boluarte;Richard E. Veilleux;C. R. Brown;B. Schuck-Ennis;C. P. Yang;H. Mojtahedi;G. S. Santo;Athyna N. Cambouris;Michel C. Nolin;Régis R. Simard;Eduard Cani;Varda Ashkenazi;Jossi Hillel;Richard E. Veilleux;M. R. Cappaert;M. L. Powelson;D. I. Inglis;M. R. Cappaert;M. L. Powelson;Yu-Kuang Chen;John B. Bamberg;Jiwan P. Palta;B. J. Christ;K. G. Haynes;Robert R. Coltman;Thomas L. German;Dennis Corsini;Gale Kleinkopf;Tina Brandt;Rebecca Outright;Richard E. Veilleux;H. Dan;A. Stankiewicz;S. T. Ali-Khan;J. Robb;Robert D. Davidson;D. S. Douches;W. W. Kirk;J. B. Bamberg;Linnell M. Edwards;Suzanne M. Emery;Donald E. Halseth;Elmer E. Ewing;Ivan Simko;Peter J. Davies;Sydney Fernando;Jeffrey McMorran;Alvin Mosley;George Clough;David Finnan;Eric Allen;Caragh B. Fitzgerald;Gregory A. Porter;M. Susan Erich;R. W. Goth;K. G. Haynes;E. J. Grafius;D. Mota-Sanchez;B. A. Bishop;M. E. Whalon;Horia Groza;Bryan Bowen;Jiming Jiang;Horia Groza;Robert Coltman;Christopher C. Gunter;Jiwan P. Palta;Christopher C. Gunter;Jiwan P. Palta;A. J. Hamernik;R. E. Hanneman;Philip B. Hamm;Russell E. Ingham;Joy R. Jaeger;R. E. Hanneman;K. G. Haynes;D. H. Lambert;B. J. Christ;D. P. Weingartner;D. S. Douches;J. E. Backlund;G. Secor;W. Fry;W. Stevenson;J. P. Helgeson;G. T. Haberlach;J. M. McGrath;J. A. Raasch;S. K. Naess;S. M. Wielgus;A. Hernández;H. Lozoya-Saldaña;T. Zavala;Brian L. Honess;George C. C. Tai;C. Wayne Honeycutt;Becky R. Hughes;Candy N. F. Keith;D. A. Inglis;B. Gundersen;M. L. Powelson;M. R. Cappaert;D. Inglis;B. Gundersen;R. Thornton;Shelley Jansky;Doug Rouse;Alexander Johnson;Suzanne Piovano;Vidya Ravichandran;Sirasak Teparkum;Eduard Chani;Richard E. Veilleux;W. B. Jones;D. W. Hempstead;J. B. Scott;Willy Kalt;Robert Prange;Barbara Daniels-Lake;John Walsh;Paul Dean;Robert Coffin;Robyne Page;L. M. Kawchuk;H. DeJong;V. J. Burns;J. Kimpinski;H. W. Platt;William Kirk;Brendan A. Niemira;Brian Kitchen;Jeffery Stein;Raymond Hammerschmidt;Stanley P. Kowalski;John M. Domek;Frances G. Perez;Lind L. Sanford;Kenneth L. Deahl;Stanley P. Kowalski;G. Craig Yencho;Ruth S. Kobayashi;Frances G. Perez;Stephen L. Sinden;Kenneth L. Deahl;David W. Laird;Albert B. Bassi;Allison Tally;Dave Lambert;Ann Currier;Modesto Olanya;W. Li;D. S. Douches;W. Pett;J. Coombs;K. Zarka;E. Grafius;Rosemary Loria;Barbara A. Fry;Raghida A. Bukhalid;Elizabeth A. Grace;Alan R. Langille;Yu Lan;A. F. Reeves;Stephen L. Love;Bruce K. Werner;Joseph J. Pavek;H. Lozoya-Saldaña;A. Hernãndez;H. Lozova-Saldaña;A. Hern↭dez;R. Flores;J. Bamberg;R. L. Ludy;M. L. Powelson;Edward C. Lulai;Manrique Klinge;Stephen L. Lovev Kurt;Jack Brown;Medina Marco;H. W. Platt;R. D. Peters;Jenifer Huang McBeath;J. Miller;Douglas C. Creighton;Jeannine P. Millerv Scheuring;George C. J. Fernandez;Dallice Mills;Brian W. Russell;J. Mozafari;D. J. Wolyn;S. T. Ali-Khan;S. I. Mpofu;R. Hall;C. Mundy;N. G. Creamer;C. R. Crozier;R. D. Morse;George Newberry;Robert Thornton;Brendan A. Niemira;William Kirk;David Douches;Raymond Hammerschmidt;P. Nolte;M. K. Thornton;S. L. Love;P. H. Berger;J. L. Whitworth;R. Davidson;Richard Novy;Craig Longtine;Solanum Etuberosum;Claudia Olivier;Eduardo S. G. Mizubuti;Donald E. Halseth;Rosemary Loria;Nora L. Olsen;Robert E. Thornton;R. L. Parks;M. L. Powelson;M. R. Cappaert;K. B. Johnson;Joseph J. Pavek;Dennis L. Corsini;Sridevi Pavuluri;T. P. Freeman;D. Baer;N. C. Gudmestad;Yvan Pelletier;Iris E. Peralta;Harvey Ballard;David M. Spooner;R. D. Peters;H. W. (Bud) Platt;Robert Hall;A. Driscoll;A. MacPhail;S. Jenkins;E. Connors;M. Medina;V. MacLean;Maxwell Philip;H. W. Platt;R. Nazar;J. Robb;V. MacLean;Omaira Pineda;Robert L. Plaisted;Steven D. Tanksley;Omaira Pineda;Robert L. Plaisted;Steven D. Tanksley;H. W. Platt;M. Medina;S. Perley;J. Walsh;Gregory A. Porter;Jonathan A. Sisson;Gregory A. Porter;Jonathan A. Sisson;R. J. Power;R. A. Hamlen;R. M. Gimenez;R. Iruegas;Robert Prange;Willy Kalt;Barbara Daniels-Lake;Chiam Liew;John Walsh;Paul Dean;Robert Coffin;Robyne Page;M. Ramon;Felix C. Serquen;R. E. Hanneman;Bruce Riggle;Ron Schafer;Alfonso H. del Rio;J. B. Bamberg;R. Romain;R. Lambert;R. Michaud;C. Lapointe;Catherine M. Ronning;Lind L. Sanford;John R. Stommel;Frances G. Perez;Kenneth L. Deahl;J. Brian Sanderson;M. R. Carter;H. W. Johnston;D. A. Holmstrom;L. L. Sanford;S. Kowalski;K. L. Deahl;C. Ronning;D. A. Schisler;G. Kleinkopf;P. J. Slininger;R. J. Bothast;R. C. Ostrowski;Janet E. A. Seabrook;L. Katheryn Douglass;Mohamed, R. B. Sedegui;A. L. Morehart Carroll;D. P. Whittington;R. P. Mullroony;Felix C. Serquen;Robert E. Hanneman;Régis R. Simard;Athyna Cambouris;Jean Lafond;A. Tyouss;Mathuresh Singh;Rudra P. Singh;Rudra P. Singh;P. J. Slininger;D. A. Schisler;K. D. Burkhead;R. C. Ostrowski;R. J. Bothast;Junqi Song;Jiming Jiang;Jose A. Souza-Dias;P. Russo de Caram;J. A. Betti;L. Miller;S. A. Slack;Jose A. Souza-Dias;de Caram;J. F. Tristao;Joseph R. Sowokinos;Mark Stalham;Anton Rosenfeld;Jeff Stewart;Antony V. Sturz;Brian G. Matheson;Sirasak Teparkum;Richard E. Veilleux;Asunta Thompson-Johns;Robert D. Davidson;George H. Timm;Robert E. Thornton;Peter Van Hest;J. J. van der Merwe;Michael E. Vayda;James K. Morelli;Kathryn M. Englehart;Sandra E. Vega;John B. Bamberg;Jiwan P. Palta;John Walsh;R. Larry Peterson;Lewis Melville;L. Wang;M. K. Pritchard;L. Wang;M. K. Pritchard;A. Westedt;D. S. Douches;E. Grafius;D. T. Westermann;J. R. Davis;D. O. Everson;Richard W. Work;T. M. Work;A. A. Bushway;Therese M. Work;Alvin A. Reeves;Wan-Chin Yu;Peter J. Joyce;Douglas C. Cameron;Brent H. McCown;Richard E. Veilleux - 通讯作者:
Richard E. Veilleux
Descending projections from the superior colliculus in rat: a study using orthograde transport of wheatgerm-agglutinin conjugated horseradish peroxidase
大鼠上丘的下降预测:使用麦芽凝集素缀合辣根过氧化物酶的顺行运输的研究
- DOI:
- 发表时间:
2004 - 期刊:
- 影响因子:2
- 作者:
Peter Redgrave;I. Mitchell;Paul Dean - 通讯作者:
Paul Dean
Can cerebellar input calibrate collicular topographic maps?
- DOI:
10.1186/1471-2202-11-s1-p120 - 发表时间:
2010-07-20 - 期刊:
- 影响因子:2.300
- 作者:
John Porrill;Sean Anderson;Paul Dean - 通讯作者:
Paul Dean
Behavioural consequences of manipulating GABA neurotransmission in the superior colliculus.
操纵上丘 GABA 神经传递的行为后果。
- DOI:
10.1016/s0079-6123(08)63618-3 - 发表时间:
1992 - 期刊:
- 影响因子:0
- 作者:
Paul Dean;Peter Redgrave - 通讯作者:
Peter Redgrave
Paul Dean的其他文献
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{{ truncateString('Paul Dean', 18)}}的其他基金
High-speed Terahertz Imaging using Rydberg Atoms & Quantum Cascade Lasers
使用里德堡原子进行高速太赫兹成像
- 批准号:
EP/W03252X/1 - 财政年份:2022
- 资助金额:
$ 143.65万 - 项目类别:
Research Grant
Ti:Sapphire Regenerative Amplified Laser System for ultrafast, high-field terahertz photonics
用于超快、高场太赫兹光子学的钛蓝宝石再生放大激光系统
- 批准号:
EP/P001394/1 - 财政年份:2016
- 资助金额:
$ 143.65万 - 项目类别:
Research Grant
Coherent detection and manipulation of terahertz quantum cascade lasers
太赫兹量子级联激光器的相干探测和操纵
- 批准号:
EP/J002356/1 - 财政年份:2011
- 资助金额:
$ 143.65万 - 项目类别:
Fellowship
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Development of motion picture recording and measurement technique of femtosecond light pulse propagation with ultrahigh-temporal resolution and long recordable time and its application
超高时间分辨率、长记录时间的飞秒光脉冲传播运动图像记录与测量技术开发及应用
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通过缩短助跑距离和加速传播来改进脉冲爆震技术
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20H02352 - 财政年份:2020
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Spatiotemporal Dynamics of Multimode Optical Pulse Propagation: Route to High-Performance Ultrafast Lasers
多模光脉冲传播的时空动力学:高性能超快激光器之路
- 批准号:
1912742 - 财政年份:2019
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$ 143.65万 - 项目类别:
Standard Grant
Single-cell causality in origination, propagation, and resolution of drug-altered brain states
药物改变大脑状态的起源、传播和解决的单细胞因果关系
- 批准号:
10494005 - 财政年份:2017
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Ultrashort laser pulse propagation in materials with strong-coupling carriers
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测试和预测海马θ波在学习和记忆中的传播
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9350392 - 财政年份:2016
- 资助金额:
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Testing and forecasting hippocampal theta wave propagation in learning and memory
测试和预测海马θ波在学习和记忆中的传播
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9237824 - 财政年份:2016
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OP: Spatiotemporal Dynamics of Multimode Optical Pulse Propagation: New Route to High-Performance Fiber Lasers
OP:多模光脉冲传播的时空动力学:高性能光纤激光器的新途径
- 批准号:
1609129 - 财政年份:2016
- 资助金额:
$ 143.65万 - 项目类别:
Standard Grant
Investigation of Electro-mechanical Coupling in Neuronal Membrane - Towards an Electro-mechanical Model of Nerve Pulse Propagation
神经膜机电耦合的研究 - 神经脉冲传播的机电模型
- 批准号:
260482124 - 财政年份:2014
- 资助金额:
$ 143.65万 - 项目类别:
Research Grants
Study of magnetic structure using heat pulse propagation
利用热脉冲传播研究磁结构
- 批准号:
24760701 - 财政年份:2012
- 资助金额:
$ 143.65万 - 项目类别:
Grant-in-Aid for Young Scientists (B)