Caltech Nanofabrication Group

  • Increase font size
  • Default font size
  • Decrease font size
Home Members

Andrew Homyk

Personal Information:

Position: Alumni (Graduate Researchers) Homyk, Andrew
Research Area: Nanophotonics
Phone: x4578
Location: Google[x] Life Sciences

Anyone with kids knows that when you make something smaller, it doesn't always behave the way you think it should.

TEM of a nanopillar with 3nm silicon coreMy research focuses on manipulation of materials at ultimate scaling limits, investigating effects which only become apparent deep in the nanometer regime.  Here, quantum-confinement and other factors fundamentally change material behavior, which we are using to enable materials to emit light which normally cannot, to demonstrate extreme elasticity in brittle materials (imagine bending your dinner plates in half like a rubber band!), and to grow dissimilar materials together in a manner which cannot be done in bulk samples.

My devices exploit these effects in novel electrical, Ion sensitive field effect transistorsoptical, and mechanical systems.  Currently, I'm focused on 1D transistor geometries, ion sensitive FETs for possible geological, chemical and implantable biomedical devices, and III-V QD heteroepitaxy on silicon below the pseudomorphic growth limit.  These systems are crucial for next-generation electronics, all-optical computation, quantum cavity electrodynamics, as well as traditional photonic devices such as modulators and sensors.

1D nanobeam photonic crystal

When I'm not in lab, I can't be far from my amazing wife Kelsey and two beautiful children, Natalie and Ashton.  I'm endlessly fascinated by them and learn immense amounts from their boundless curiosity.  Depending on the season, we can be found skiing, swimming, biking, hiking, or camping, and explore museums, parks, books, puzzles, home science experiments and innumerable other sports and activities throughout the year.  If there's any time left over, I can be found cooking or playing the piano, or simply enjoying a quiet evening with Kelsey.


  • Walavalkar, S., Latawiec, P., Homyk, A. & Scherer, A. (2014). Scalable Method for the Fabrication and Testing of Glass-Filled, Three-Dimensionally Sculpted Extraordinary Transmission Apertures. Nano Letters, Advanced Online. [More] 
  • Lai, W.-T., Liao, P., Homyk, A., Scherer, A. & Li, P. -. (2013). SiGe Quantum Dots over Si Pillars for Visible to Near-infrared Broadband Photodetection. IEEE Photonics Technology Letters, 25(15), 1520-1523. [More] 
  • Rajagopal, A., Scherer, A., Homyk, A. & Kartalov, E. (2013). Supercolor Coding Methods for Large-Scale Multiplexing of Biochemical Assays. Analytical Chemistry, 85(16), 7629-7636. [More] 
  • Kim, S.-H., Homyk, A., Walavalkar, S. & Scherer, A. (2012). High-Q Impurity Photon States Bounded by a Photonic Band Pseudogap in an Optically Thick Photonic Crystal Slab. Physical Review B, 86(24), 245114. [More] 
  • Walavalkar, S., Homyk, A., Henry, D. & Scherer, A. (2012). Three-Dimensional Etching of Silicon for the Fabrication of Low-Dimensional and Suspended Devices. Nanoscale, Advanced online. [More] 
  • Hendrickson, J., Homyk, A., Scherer, A., Alasaarela, T., Saynatjoki, A., Honkanen, S. et al (2012). Quantum Optics with Semiconductor Nanostructures, chapter 13. Philadelphia : Woodhead Publishing. [More] 
  • Gehl, M., Gibson, R., Hendrickson, J., Homyk, A., Saynatjoki, A., Alasaarela, T. et al. (2012). Effect of atomic layer deposition on the quality factor of silicon nanobeam cavities. Journal of the Optical Society of America B, 29(2), A55-A59. [More] 
  • Richards, B. C., Hendrickson, J., Olitzky, J. D., Gibson, R., Gehl, M., Kieu, K. et al. (2011). Progress in growth, fabrication, and characterization of semiconductor photonic crystal nanocavities. Physica Status Solidi B, 248(4), 892-896. [More] 
  • Walavalkar, S., Homyk, A., Hofmann, C. E., Henry, D., Shin, C., Atwater, H. A. et al. (2011). Size Tunable Visible and Near-Infrared Photoluminescence from Vertically Etched Silicon Quantum Dots. Applied Physics Letters, 98(15), 153114. [More] 
  • Walavalkar, S., Hofmann, C. E., Homyk, A., Henry, D., Atwater, H. A. & Scherer, A. (2010). Tunable Visible and Near-IR Emission from Sub-10 nm Etched Single-Crystal Si Nanopillars. Nano Letters, 10(11), 4423-4428. [More] 
  • Richards, B. C., Hendrickson, J., Olitzky, J. D., Gibson, R., Gehl, M., Kieu, K. et al. (2010). Characterization of 1D Photonic Crystal Nanobeam Cavities Using Curved Microfiber. Optics Express, 18(20), 20558-20564. [More] 
  • Walavalkar, S., Homyk, A., Henry, D. & Scherer, A. (2010). Controllable Deformation of Silicon Nanowires with Strain up to 24%. Journal of Applied Physics, 107(12), 124314. [More] 
  • Henry, D., Walavalkar, S., Homyk, A. & Scherer, A. (2009). Alumina Etch Masks for Fabrication of High-Aspect-Ratio Silicon Micropillars and Nanopillars. Nanotechnology, 20(25), 255305. [More] 


Administrative and Financial Contact

Kate Finigan
MC 200-36, Caltech
1200 E California Blvd
Pasadena, CA 91125

Office:  212 Sloan Annex
Phone:  626.395.4585
Fax: 626.577.8442