Quantum and Laser Sciences Group
What we Do?
- We develop theoretical and computational capabilities to study the physics of:
- interactions of novel light sources in photonic structures and quantum systems
- We also have a powerful Femtosecond Laser to study laser-plasma interactions, manipulate and engineer materials and surfaces
- To develop state-of-the art research in quantum optics, optical materials and advanced laser science.
- To synergize theoretical, experimental research results with industrial applications.
Remarkable effects/applications of quantum & laser sciences
- Control optical properties of objects using lasers
- Slowing of light signal down to few meters per second
- Atomic clock (ultraprecise) for time/frequency standard
- Nonclassical light for interferometry(gravitational wave detector)
- Entanglement for quantum computing and communication
- Laser spectroscopy for detection of molecular species
- Control of atomic/molecular processes with laser pulses
The future technological advancement will be driven by quantum photonics, the science and engineering of quantum
properties of light and matter.
Our research explores the fundamental properties of light in exotic environments to bring innovation in optical engineering as describe below:
- Novel photonic structures for engineering applications - artificially engineered structures can control the properties of electromagnetic waves, providing an ultimate control of light for information processing and imaging.
- Generation of intense nonclassical light - nonclassical light can be used for quantum communication and quantum computing, but at high intensity, there are more remarkable applications.
- Plasmonic optoelectronics - surface plasmon-polariton is a long-known electron-photon excitation. Recently, the race is on to use this effect for subwavelength imaging and potential revolution in optoelectronic devices.
- Left-hand materials - artificially structured materials with negative index can bend the propagation of light, serve as perfect lens and cloaking device.
- Laser ablation dynamics in materials such as cornea - photorefractive keratectomy, the technology of using laser pulses to shape human cornea, is based on semi-quantitative understanding of laser ablation dynamics. Our research will transform it to a more exact science.
- Optical devices based on quantum effects - quantum effects gave use the present microelectronics. the effects can also produce optical transistor and devices that are hypersensitive to motion.
- Nonlinear spectroscopy, imaging or microscopy - Nonlinear optical tecnique can be used to detect any chemical constituents remotely, within seconds. Useful for rapid chemical analysis, imaging of biological tissues, counter-terrorism, surveillance and national security.
- Ultrashort, ultrafast, ultraintense light source - advanced laser techniques have produced attosecond laser pulses that can be used to probe molecular dynamics. At extreme intensity, the laser can produce filamentation and plasma in the air. One application is for detection/control of lightning.
Results from our femtosecond laser (QLS lab)
Industrial Applications of Femtosecond Laser
Professor Dr. C.H. Raymond Oii
Department of Physics
PhD Students (Present)
~Ahmed Nadi ( Egypt) - intense nonclassical light source
~Mohamed Shafei (Egypt) - high power laser
~Wong Wen-Wei (Malaysia) - ultrashort pulse propagation
PhD Students (Completed)
C. Y. Lee
Quantum coherence (with supervisor Prof M. Scully)
2. Toh Lee Roy - Atoms and molecules in laser fields
3. Pang Harn Fung
Selected Publications of Prof Dr Raymond Ooi
Researcher ID: http://www.researcherid.com/rid/B-9461-2010
64) Jalal Rouhi, Shahrom Mahmud, Nima Naderi, CH Raymond Ooi and Mohamad Rusop Mahmood (2013), “Physical properties of fish gelatin-based bio-nanocomposite films incorporated with ZnO nanorods”, Nanoscale Research Letters 8, 364
65) Sandip Kumar Giri, Biswajit Sen, C H Raymond Ooi and Anirban Pathak, Single mode and intermodal higher order nonclassicalities in two-mode Bose-Einstein condensates, Physical Review A 89, 033628 (2014).
66) G. Davoud and C H R Ooi, Modeling of temperature-dependent shift of photoluminescence peak of In(Ga)As quantum dots considering acoustic and optical phonons as two oscillators - Journal of Optical Society of America B (2014)
67) P R Berman and CHR Ooi, Collapse and revivals in the Jaynes-Cummings model: An analysis based on the Mollow transformation, Physical Review A 89, 033845 (2014)
68) Jalal Rouhi, M. Alimanesh, R. Dalvand, C. H. Raymond Ooi, S. Mahmud, M. Rusop Mahmood, Optical properties of well-aligned ZnO nanostructure arrays synthesized by an electric field-assisted aqueous solution method, Ceramics International 40 11193–11198 (2014)
69) J. Rouhi, M. Alimanesh , S. Mahmud, R.A. Dalvand , C.H. Raymond Ooi, M. Rusop, A novel method for synthesis of well-aligned hexagonal cone-shaped ZnO nanostructures in field emission applications, Materials Letters 125, 147–150 (2014)
70) CHR Ooi, W L Ho & A D Bandrauk - Photoelectron angular distributions of excited atoms in intense laser fields, Phys Rev. A 90, 013417 (2014)
71) S. K. Singh and C. H. Raymond Ooi, Quantum Correlations of Quadratic Optomechanical Oscillator, J. Opt. Soc. Am. B 31, 2390 ( 2014).
72) E. Sete and CHR Ooi, Manuscript ID: 214305 Light-to-matter entanglement transfer in optomechanics, JOSA B 31, 2821(2014)
73. Josep Batle & Raymond Ooi, Locality and Classicality: role of entropic inequalities, Quantum Information Processing 14, 3115-3137 (2015).
2. Jalal Rouhi, C. H. Raymond Ooi, Shahrom Mahmud, Mohamad Rusop Mahmood, Facile synthesis of vertically aligned cone-shaped ZnO/ZnS core/shell arrays using the two-step aqueous solution approach. Mater. Lett. 147, 34-37 (2015)
3. Jalal Rouhi, Mohamad Hafiz Mamat, C. H. Raymond Ooi, Shahrom Mahmud, Mohamad Rusop Mahmood, High-Performance Dye-Sensitized Solar Cells Based on Morphology-Controllable Synthesis of ZnO–ZnS Heterostructure Nanocone Photoanodes, PloS One 10(4), e0123433 (2015)
4. K. Berrada, C. H. Raymond Ooi and S. Abdel-Khalek, Geometric phase and entanglement of Raman photon pairs in the presence of photonic band gap. J. Appl. Phys. 117, 124904 (2015)
5. A. S. Sizhuk, C. H. Raymond Ooi, The conservative system of N atoms coupled with one photon, Ann. Phys. 360, 207–227 (2015)
6. Ramazanali Dalvand, Shahrom Mahmud, Jalal Rouhi, C. H. Raymond Ooi, Well-aligned ZnO nanoneedle arrays grown on polycarbonate substrates via electric field-assisted chemical method, Mater. Lett. 146, 65-68 (2015)
8) Jalal Rouhi, C. H. Raymond Ooi, Shahrom Mahmud, Mohamad Rusop, Mahmood Synthesis of Needle-Shape ZnO-ZnS Core-Shell Heterostructures and Their Optical and Field Emission Properties, Electron. Mater. Lett. 11, pp 957-963 (2015)
9) Eyob A. Sete, H. Eleuch, C.H. Raymond Ooi, Entanglement between exciton and mechanical modes via dissipation-induced coupling, Phys Rev. A 92, 033843 (2015)
10) J. Batle, C. H. Raymond Ooi, Ahmed Farouk, M. S. Alkhambashi, S. Abdalla, Global versus local quantum correlations in the Grover search algorithm, QINP (2015).
11) C. H. Raymond Ooi, Eyob A. Sete, and W. M. Liu, Quantum dynamics and spectra of vibrational Raman-resonance fluorescence in a two-mode cavity, Phys. Rev. A 92, 063847 (2015)
12) J. Batle, C. H. Raymond Ooi, and S. Abdalla, Reexamination of the purity entanglement measure: Peculiarities of a truly thermodynamic quantum correlation measure, Phys. Rev. A 92, 062341
13) J. Batle, C. H. Raymond Ooi, Ahmed Farouk, S. Abdalla Nonlocality in pure and mixed n-qubit X states, Qtm Inf Prc (2015)
14) P. R. Berman and Raymond Ooi, Atom and quantum oscillator coupled by the vacuum field: radiation pattern, emission spectrum and decay dynamics, Phys. Rev. A 93, 013804 (2016)
Quantum And Laser Sciences
Department of Physics,
Faculty of Science,
University of Malaya,
50603, Kuala Lumpur Malaysia.
or you can e-mail your enquiries to our group members