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| 1 | Ultrafast response of harmonic modelocked THz lasers显示文摘The use of fundamental modelocking to generate short terahertz(THz)pulses and THz frequency combs from semiconductor lasers has become a routine affair,using quantum cascade lasers(QCLs)as a gain medium.However,unlike classic laser diodes,no demonstrations of harmonic modelocking,active or passive,have been shown in THz QCLs,where multiple pulses per round trip are generated when the laser is modulated at the harmonics of the cavity’s fundamental round-trip frequency.Here,using time-resolved THz techniques,we show for the first time harmonic injection and mode-locking in which THz QCLs are modulated at the harmonics of the round-trip frequency.We demonstrate the generation of the harmonic electrical beatnote within a QCL,its injection locking to an active modulation and its direct translation to harmonic pulse generation using the unique ultrafast nature of our approach.Finally,we show indications of self-starting harmonic emission,i.e.,without external modulation,where the QCL operates exclusively on a harmonic(up to its 15th harmonic)of the round-trip frequency.This behaviour is supported by time-resolved simulations of induced gain and loss in the system and shows the importance of the electronic,as well as photonic,nature of QCLs.These results open up the prospect of passive harmonic modelocking and THz pulse generation,as well as the generation of low-noise microwave generation in the hundreds of GHz region. | Feihu Wang Valentino Pistore Michael Riesch Hanond Nong Pierre-Baptiste Vigneron Raffaele Colombelli Olivier Parillaud Juliette Mangeney Jerome Tignon Christian Jirauschek Sukhdeep S.Dhillon | 2020 | Light(Science & Applications)2020，9，1： | 3 |
| 2 | Speciation by selection: A framework for understanding ecology's role in speciation显示文摘 | R. Brian LANGERHANS Rtidiger RIESCH | 2013 | Current Zoology2013，59，1： | 3 |
| 3 | Absorption cycles:a review with regard to energy efficiency显示文摘 | ZIEGLER F RIESCH P | 1993 | Int J Heat recovery system & CHP1993，13，2： | 1 |
| 4 | Hydroxide absorption heat pumps with spray absorber显示文摘 | Franz Summerer Peter Riesch Felix Ziegler Georg Alefeld | 1996 | ASHRAE Transactions1996，，102： | 1 |
| 5 | The exercise of self care agency:An anal ysis of construct and discriminant validity显示文摘 | Riesch SK HauckMR | 1988 | Res Nurs Health1988，11，4： | 1 |
| 6 | Targeted next generation sequencing as a diagnostic tool inepileptic disorders 显示文摘 | Lemke JR Riesch E Scheurenbrand T | 2012 | Epilepsia2012，53，： | 1 |
| 7 | The exercise of self-care agency: an analysis of construct and discriminant validity 显示文摘 | Riesch SK Hauck MR | 1988 | Res Nurs Health1988，11，4： | 1 |
| 8 | Why did the proton cross the road? Humour and science communication显示文摘 | Hauke Riesch | 2014 | Public Understanding of Science2014，8，18： | 1 |
| 9 | Hydroxide absorption heat pumps with spray absorber显示文摘 | Summerer F Ziegler F Riesch P | 1996 | ASHRAE Trans1996，102，1： | 1 |
| 10 | Targetingtumor-associatedmacrophagesincancertherapyandunderstandingtheircomplexity显示文摘 | CANNARILEMA RIESCH HOVESS etal | 2014 | Oncoimmunology2014，3，95： | 1 |
| 11 | Hydroxide absorption heat pumps with spray absorber显示文摘 | SUMMERER F ZIEGLER F RIESCH P | 1996 | ASHRAE Trans1996，102，1： | 1 |
| 12 | Hydroxide absorption heat pumps with spray absorber显示文摘 | SUMMERER F ZIEGLER F RIESCH P | 1996 | ASHRAE Trans1996，102，1： | 1 |
| 13 | Pyoderm a gangrenosum: a report of 44 cases with follow-up显示文摘 | Vonden D riesch P | 1997 | Br J Dermatol1997，137，6： | 1 |
| 14 | The exercise of self-care agency:an analyJ sis of construct and discriminant validity 显示文摘 | Riesch SK Hauck MR | 1988 | Res Nurs Health1988，11，4： | 1 |
| 15 | Hydroxide absorption heat pumps with spray absorber 显示文摘 | Summerer F Ziegler F Riesch P | 1996 | ASHRAE Trans1996，102，1： | 1 |
| 16 | Hydroxide absorption heat pumps with spray absorber 显示文摘 | Summerer F Ziegler F Riesch P | 1996 | ASHRAE Trans1996，102，1： | 1 |
| 17 | The exercise of self-care agency:An analysisof construct and discriminant validity 显示文摘 | Riesch SK Hauck MR | 1988 | Res Nurs Health1988，11，4： | 1 |
| 18 | De novo loss-or gain-of- function mutations in KCNA2 cause epileptic encephalopa- thy显示文摘 | Syrbe S Hedrich UB Riesch E | 2015 | Nat Genet2015，，47： | 1 |
| 19 | Targeted next gen- eration sequencing as a diagnostic tool 'in epileptic disorders 显示文摘 | Lemke J R Riesch E Scheurenbrand T | 2012 | Epilepsia2012，53，8： | 1 |
| 20 | Targeted next generation sequencing as a diagnostic tool in epileptic disorders显示文摘 | Lemke JR Riesch E Scheurenbrand T | 2012 | Epilepsia2012，53，8： | 1 |
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