Electrons in nanostructured materials or in a strong magnetic field are confined into a potential well narrower than their de Broglie wavelength. Such a quantum-confined electron gas offers a fascinating playground for quantum optics and condensed matter physics, in which electron wave functions, energies, transition matrix elements, scattering rates, and many other parameters can be designed and controlled. We study coherent and ultrafast optical phenomena in these artificial materials. We apply the results of our theoretical analysis and numerical modeling to design novel optical semiconductor devices with unique functionalities such as operation in new spectral ranges, generation of ultrafast pulses, entanglement of photon or electron quantum states, ultra-sensitive photon detection, and ultra-broad modulation bandwidth. Our recent research projects include:

- Coherent terahertz optical response of low-dimensional semiconductor plasmas
- Superfluorescence in high-density electron-hole plasma in magnetized quantum wells
- Nonlinear optics in graphene and topological insulators
- Mode locking and ultrashort pulse generation in quantum cascade lasers
- Phase coherence in quantum cascade lasers
- Nonlinear optics and terahertz generation in quantum cascade lasers
- Magnetooptical response of dilute magnetic semiconductors

- Y. Wang, M. Tokman, and A. Belyanin, Second-order nonlinear optical response of graphene, Phys. Rev. B submitted; http://arxiv.org/abs/1609.02073.
- Q. Zhang, Y. Wang, W. Gao, J. D. Watson, M. J. Manfra, A. Belyanin, and J. Kono Terahertz Magnetospectroscopy of High-Density 2D Electron-Hole Pairs: Absence of Mott Transition in High Magnetic Fields, Phys. Rev. Lett. submitted; http://arxiv.org/abs/1606.08278.
- K. Cong, Q. Zhang, Y. Wang, G. T. Noe II, A. Belyanin, and J. Kono, Dicke superradiance in solids, (invited review), JOSA B 33, C80 (2016).
- M. Tokman, Y. Wang, I. Oladyshkin, A. Ryan Kutayah, and A. Belyanin, Laser-driven parametric instability and generation of entangled photon-plasmon states in graphene, Phys. Rev. B 93, 235422 (2016).
- D.G. Revin, M. Hemingway, Y. Wang, J.W. Cockburn, and A. Belyanin, Active mode locking of quantum cascade lasers operating in external ring cavity, Nature Comm. 7, 11440 (2016).
- M. Tokman, Y. Wang, and A. Belyanin, Valley entanglement of excitons in monolayers of transition-metal dichalcogenides, Phys. Rev. B 92, 075409 (2015).
- K. Cong, Y. Wang, J.-H. Kim, G. T. Noe II, S. A. McGill, A. Belyanin, and J. Kono, Superfluorescence from photoexcited semiconductor quantum wells: magnetic field, temperature, and excitation power dependence, Phys. Rev. B 91, 235488 (2015).
- Y. Wang, M. Tokman, and A. Belyanin, Continuous wave lasing between Landau levels in graphene, Phys. Rev. A 91, 033821 (2015).
- Y. Wang and A. Belyanin, Generation of ultrashort pulses in actively mode-locked mid-infrared quantum cascade lasers with short gain recovery time, Optics Express 23, 4173-4185 (2015).
- T. S. Mansuripur, G.-M. de Naurois, A, Belyanin, and F. Capasso, Lasers with distributed loss have a sublinear output power characteristic, Optica 2, 48 (2015).
- X. Yao, M.D. Tokman, and A. Belyanin, Strong magneto-optical effects due to surface states in 3D topological insulators, Optics Express 23, 795 (2015).
- X. Yao, M.D. Tokman, and A. Belyanin, Efficient nonlinear generation of THz plasmons in graphene and topological insulators, Phys. Rev. Lett. 112, 055501 (2014).
- Q. Zhang, T. Arikawa, E. Kato, J. L. Reno, W. Pan, J. D. Watson, M. J. Manfra, M. A. Zudov, M. Tokman, M. Erukhimova, A. Belyanin, and J. Kono, Superradiant nature of cyclotron resonance decoherence in two-dimensional electron gases, Phys. Rev. Lett. 113, 047601 (2014).
- M. D. Tokman, M. A. Erukhimova, and A. Belyanin, Nonlinear Cyclotron Acceleration of Massless Dirac Charge Carriers in Graphene and Topological Insulators, JETP Lett. 100, 390 (2014).
- J.-H. Kim, G. T. Noe II, S. A. McGill, Y. Wang, A. K. Wojcik, A. Belyanin, and J. Kono, Fermi-edge superfluorescence from a quantum-degenerate electron-hole gas, Nature Scientific Reports 3, 3283 (2013).
- A. Wojcik, P. Malara, R. Blanchard, T. S. Mansuripur, F. Capasso, and A. Belyanin, Generation of picosecond pulses and frequency combs in actively mode locked external ring cavity quantum cascade lasers, Appl. Phys. Lett. 103, 231102 (2013).
- T. Arikawa, Q. Zhang, L. Ren, A. A. Belyanin, J. Kono, Review of Anisotropic Terahertz Material Response, Journ. IR, THz, and MM Waves 34, 724 (2013); http://arxiv.org/abs/1305.1987
- D. Morris, L. Ren, R.S. Arvidson, A. Luttge, R. H. Hauge, A. Belyanin, G. L. Woods, and J. Kono, Mid-infrared Third Harmonic Generation from Macroscopically Aligned Ultralong Single-Wall Carbon Nanotubes, Phys. Rev. B. (Rapid Communications) 87, 161405 (2013); http://link.aps.org/doi/10.1103/PhysRevB.87.161405.
- L. Ren, Q. Zhang, C. L. Pint, A. Wojcik, M. Bunney Jr., T. Arikawa, I. Kawayama, M. Tonouchi, R. H. Hauge, A. Belyanin, and J. Kono, Collective Antenna Effects in the Terahertz and Infrared Response of Highly Aligned Carbon Nanotube Arrays, Phys. Rev. B. (Rapid Communications) 87, 161401 (2013); http://link.aps.org/doi/10.1103/PhysRevB.87.161401.
- P. Malara, R. Blanchard, T. Mansuripur, A. Wojcik, A. Belyanin, T. Edamura, S. Furuta, K. Fujita, M. Yamanishi, P. de Natale, F. Capasso, External ring-cavity quantum cascade lasers, Appl. Phys. Lett. 102, 141105 (2013).
- M. Tokman, X. Yao and A. Belyanin, Generation of entangled states in graphene in a strong magnetic field, Phys. Rev. Lett. 110, 0774904 (2013).
- X. Yao and A. Belyanin, Nonlinear optics of graphene in a strong magnetic field, J. Phys. Cond. Matt. (invited review; included in IOPselect) 25, 054203 (2013).
- G. T. Noe, J.H. Kim, Y. Wang, A. Wojcik, S.A. McGill, C. J. Stanton, A. A. Belyanin, D. H. Reitze, and J. Kono, Generation of Superfluorescent Bursts from a Fully Tunable Semiconductor Magneto-plasma, Fortschritte der Physik (
*invited article*), 61, 393-403 (2013). - J. Lee, G. T. Noe, Y. Wang, G. S. Solomon, C. J. Stanton, D. H. Reitze, A. A. Belyanin, and J. Kono, Renormalized energies of superfluorescent bursts from an electron-hole magnetoplasma with high gain in In
*x*Ga1−*x*As quantum wells, - D. Guo, X. Chen, L. Cheng, A. Belyanin, and F.-S. Choa, Mid-infrared optical amplification and detection in quantum cascade lasers, Opt. Express 21, 30545 (2013).
- X. Yao and A. Belyanin, Giant optical nonlinearity of graphene in a strong magnetic field, Phys. Rev. Lett. 108, 255503 (2012) (
*Editor’s Suggestion*); arXiv: 1110.4869. - C. Rödel, D. van der Brügge, J. Bierbach, M. Yeung, T. Hahn, B. Dromey, S. Herzer, S. Fuchs, A. Galestian Pour, E. Eckner, M. Behmke, M. Cerchez, O. Jäckel, D. Hemmers, T. Toncian, M. C. Kaluza, A. Belyanin, G. Pretzler, O. Willi, A. Pukhov, M. Zepf, and G. G. Paulus, Harmonic generation from relativistic plasma surfaces in ultrasteep density gradients, Phys. Rev. Lett. 109, 125002 (2012).
- T. Arikawa, X. Wang, A. Belyanin, and J. Kono, Giant tunable Faraday effect in a semiconductor magneto-plasma for broadband terahertz polarization optics, Optics Express, 20, 19484 (2012).
- D.G. Revin, R.S. Hassan, A.B. Krysa, Y. Wang, A. Belyanin, K. Kennedy, C.N. Atkins, and J.W. Cockburn, Spectroscopic study of transparency current in mid-infrared quantum cascade lasers, Optics Express 20, 18925 (2012).
- G. T. Noe, J.H. Kim, Y. Wang, A. Wojcik, S.A. McGill, A. A. Belyanin, D. H. Reitze, and J. Kono, Giant superfluorescent bursts from a semiconductor magneto-plasma, Nature Physics 8, 219 (2012).
- A. Wojcik, N. Yu, L. Diehl, F. Capasso, and A. Belyanin, Self-synchronization of laser modes and multistability in quantum cascade lasers, Phys. Rev. Lett. 106, 133902 (2011).
- D. Smith and A. Belyanin, Room-Temperature Semiconductor Coherent Smith-Purcell THz Sources, Appl. Phys. Lett. 98, 063501 (2011).
- C. Sun, J. Kono, Y.-H. Cho, A. K. Wojcik, A. Belyanin, and H. Munekata, Above-Bandgap Magneto-optical Kerr Effect in Ferromagnetic GaMnAs, Phys. Rev. B. 83, 125206 (2011).
- A. Wojcik, N. Yu, F. Capasso, and A. Belyanin, Nonlinear optical interactions of laser modes in quantum cascade lasers (
*Invited Review*), J. Mod. Optics, 58, 727-742 (2011).

Associate Head for Undergraduate Programs

Advisor, Society of Physics Students

**Office: **MIST 426

**Phone: **(979) 845-7785

**Fax: **(979) 845-2590

**Email: **belyanin [at] tamu.edu

NSF with Harvard 2013-2016

MIRTHE (NSF ERC) 2006-2016

NSF PIRE with Rice 2006-2016

AFOSR - Theoretical Nonlinear Optics 2015-2018

AFOSR - Materials Program 2014-2017

Fellow, American Physical Society

Fellow, International Society for Optics and Photonics (SPIE)

NSF CAREER Award

JoAnn Treat Award

Physics 302 Advanced mechanics

Physics 303 Advanced mechanics II

Physics 649: Physics of Optoelectronic devices

Department of Physics & Astronomy

Texas A&M University

College Station, TX 77843-4242